diff --git a/pkg/compiler/compiler_regexp_test.go b/pkg/compiler/compiler_regexp_test.go
new file mode 100644
index 00000000..d9d370e8
--- /dev/null
+++ b/pkg/compiler/compiler_regexp_test.go
@@ -0,0 +1,77 @@
+package compiler_test
+
+import (
+	"context"
+	"fmt"
+	"github.com/MontFerret/ferret/pkg/runtime/core"
+	"github.com/MontFerret/ferret/pkg/runtime/values"
+	"testing"
+
+	"github.com/MontFerret/ferret/pkg/compiler"
+	. "github.com/smartystreets/goconvey/convey"
+)
+
+func TestRegexpOperator(t *testing.T) {
+	Convey("Should be possible to use positive regular expression operator", t, func() {
+		out := compiler.New().
+			MustCompile(`
+			RETURN "foo" =~ "^f[o].$" 
+		`).
+			MustRun(context.Background())
+
+		So(string(out), ShouldEqual, `true`)
+	})
+
+	Convey("Should be possible to use negative regular expression operator", t, func() {
+		out := compiler.New().
+			MustCompile(`
+			RETURN "foo" !~ "[a-z]+bar$" 
+		`).
+			MustRun(context.Background())
+
+		So(string(out), ShouldEqual, `true`)
+	})
+
+	Convey("Should be possible to use negative regular expression operator", t, func() {
+		c := compiler.New()
+		c.RegisterFunction("T::REGEXP", func(_ context.Context, _ ...core.Value) (value core.Value, e error) {
+			return values.NewString("[a-z]+bar$"), nil
+		})
+
+		out := c.
+			MustCompile(`
+			RETURN "foo" !~ T::REGEXP()
+		`).
+			MustRun(context.Background())
+
+		So(string(out), ShouldEqual, `true`)
+	})
+
+	Convey("Should return an error during compilation when a regexp string invalid", t, func() {
+		_, err := compiler.New().
+			Compile(`
+			RETURN "foo" !~ "[ ]\K(?<!\d )(?=(?: ?\d){8})(?!(?: ?\d){9})\d[ \d]+\d" 
+		`)
+
+		So(err, ShouldBeError)
+	})
+
+	Convey("Should return an error during compilation when a regexp is not a string", t, func() {
+		right := []string{
+			"[]",
+			"{}",
+			"1",
+			"1.1",
+			"TRUE",
+		}
+
+		for _, r := range right {
+			_, err := compiler.New().
+				Compile(fmt.Sprintf(`
+			RETURN "foo" !~ %s 
+		`, r))
+
+			So(err, ShouldBeError)
+		}
+	})
+}
diff --git a/pkg/compiler/visitor.go b/pkg/compiler/visitor.go
index 37febb34..f8d03420 100644
--- a/pkg/compiler/visitor.go
+++ b/pkg/compiler/visitor.go
@@ -2,6 +2,7 @@ package compiler
 
 import (
 	"fmt"
+	"regexp"
 	"strconv"
 	"strings"
 
@@ -1187,6 +1188,36 @@ func (v *visitor) doVisitEqualityOperator(ctx *fql.ExpressionContext, scope *sco
 	return operators.NewEqualityOperator(v.getSourceMap(equalityOp), left, right, equalityOp.GetText())
 }
 
+func (v *visitor) doVisitRegexpOperator(ctx *fql.ExpressionContext, scope *scope) (core.Expression, error) {
+	regexpOp := ctx.RegexpOperator().(*fql.RegexpOperatorContext)
+	rawExps := ctx.AllExpression()
+	exps, err := v.doVisitAllExpressions(rawExps, scope)
+
+	if err != nil {
+		return nil, err
+	}
+
+	left := exps[0]
+	right := exps[1]
+
+	switch lit := right.(type) {
+	case literals.StringLiteral:
+		_, err := regexp.Compile(string(lit))
+
+		if err != nil {
+			src := v.getSourceMap(rawExps[1])
+
+			return nil, errors.Wrap(err, src.String())
+		}
+	case *literals.ArrayLiteral, *literals.ObjectLiteral, literals.BooleanLiteral, literals.FloatLiteral, literals.IntLiteral:
+		src := v.getSourceMap(rawExps[1])
+
+		return nil, errors.Wrap(errors.New("expected a string literal or a function call"), src.String())
+	}
+
+	return operators.NewRegexpOperator(v.getSourceMap(regexpOp), left, right, regexpOp.GetText())
+}
+
 func (v *visitor) doVisitInOperator(ctx *fql.ExpressionContext, scope *scope) (core.OperatorExpression, error) {
 	exps, err := v.doVisitAllExpressions(ctx.AllExpression(), scope)
 
@@ -1333,6 +1364,12 @@ func (v *visitor) doVisitExpression(ctx *fql.ExpressionContext, scope *scope) (c
 		return v.doVisitLogicalOperator(ctx, scope)
 	}
 
+	regexpOp := ctx.RegexpOperator()
+
+	if regexpOp != nil {
+		return v.doVisitRegexpOperator(ctx, scope)
+	}
+
 	variable := ctx.Variable()
 
 	if variable != nil {
diff --git a/pkg/parser/antlr/FqlParser.g4 b/pkg/parser/antlr/FqlParser.g4
index 7196faef..cceda716 100644
--- a/pkg/parser/antlr/FqlParser.g4
+++ b/pkg/parser/antlr/FqlParser.g4
@@ -228,6 +228,7 @@ expression
     | expression arrayOperator (inOperator | equalityOperator) expression
     | expression inOperator expression
     | expression equalityOperator expression
+    | expression regexpOperator expression
     | expression logicalAndOperator expression
     | expression logicalOrOperator expression
     | expression QuestionMark expression? Colon expression
@@ -270,6 +271,11 @@ equalityOperator
     | Neq
     ;
 
+regexpOperator
+    : RegexMatch
+    | RegexNotMatch
+    ;
+
 logicalAndOperator
     : And
     ;
diff --git a/pkg/parser/fql/FqlParser.interp b/pkg/parser/fql/FqlParser.interp
index f2c81e08..4622810f 100644
--- a/pkg/parser/fql/FqlParser.interp
+++ b/pkg/parser/fql/FqlParser.interp
@@ -182,6 +182,7 @@ forTernaryExpression
 arrayOperator
 inOperator
 equalityOperator
+regexpOperator
 logicalAndOperator
 logicalOrOperator
 multiplicativeOperator
@@ -190,4 +191,4 @@ unaryOperator
 
 
 atn:
-[3, 24715, 42794, 33075, 47597, 16764, 15335, 30598, 22884, 3, 65, 563, 4, 2, 9, 2, 4, 3, 9, 3, 4, 4, 9, 4, 4, 5, 9, 5, 4, 6, 9, 6, 4, 7, 9, 7, 4, 8, 9, 8, 4, 9, 9, 9, 4, 10, 9, 10, 4, 11, 9, 11, 4, 12, 9, 12, 4, 13, 9, 13, 4, 14, 9, 14, 4, 15, 9, 15, 4, 16, 9, 16, 4, 17, 9, 17, 4, 18, 9, 18, 4, 19, 9, 19, 4, 20, 9, 20, 4, 21, 9, 21, 4, 22, 9, 22, 4, 23, 9, 23, 4, 24, 9, 24, 4, 25, 9, 25, 4, 26, 9, 26, 4, 27, 9, 27, 4, 28, 9, 28, 4, 29, 9, 29, 4, 30, 9, 30, 4, 31, 9, 31, 4, 32, 9, 32, 4, 33, 9, 33, 4, 34, 9, 34, 4, 35, 9, 35, 4, 36, 9, 36, 4, 37, 9, 37, 4, 38, 9, 38, 4, 39, 9, 39, 4, 40, 9, 40, 4, 41, 9, 41, 4, 42, 9, 42, 4, 43, 9, 43, 4, 44, 9, 44, 4, 45, 9, 45, 4, 46, 9, 46, 4, 47, 9, 47, 4, 48, 9, 48, 4, 49, 9, 49, 4, 50, 9, 50, 4, 51, 9, 51, 4, 52, 9, 52, 4, 53, 9, 53, 4, 54, 9, 54, 4, 55, 9, 55, 4, 56, 9, 56, 4, 57, 9, 57, 3, 2, 3, 2, 3, 3, 7, 3, 118, 10, 3, 12, 3, 14, 3, 121, 11, 3, 3, 3, 3, 3, 3, 4, 3, 4, 5, 4, 127, 10, 4, 3, 5, 3, 5, 5, 5, 131, 10, 5, 3, 6, 3, 6, 5, 6, 135, 10, 6, 3, 6, 3, 6, 3, 6, 5, 6, 140, 10, 6, 3, 6, 3, 6, 3, 6, 3, 6, 3, 6, 3, 6, 5, 6, 148, 10, 6, 3, 7, 3, 7, 3, 7, 3, 7, 5, 7, 154, 10, 7, 3, 7, 3, 7, 3, 7, 7, 7, 159, 10, 7, 12, 7, 14, 7, 162, 11, 7, 3, 7, 3, 7, 3, 8, 3, 8, 3, 9, 3, 9, 3, 10, 3, 10, 3, 10, 3, 10, 3, 10, 3, 10, 3, 10, 5, 10, 177, 10, 10, 3, 11, 3, 11, 3, 11, 3, 11, 5, 11, 183, 10, 11, 3, 12, 3, 12, 5, 12, 187, 10, 12, 3, 13, 3, 13, 5, 13, 191, 10, 13, 3, 14, 3, 14, 5, 14, 195, 10, 14, 3, 15, 3, 15, 3, 15, 3, 16, 3, 16, 3, 16, 3, 16, 5, 16, 204, 10, 16, 3, 17, 3, 17, 5, 17, 208, 10, 17, 3, 18, 3, 18, 3, 18, 3, 18, 7, 18, 214, 10, 18, 12, 18, 14, 18, 217, 11, 18, 3, 19, 3, 19, 5, 19, 221, 10, 19, 3, 20, 3, 20, 3, 20, 3, 20, 3, 20, 3, 20, 3, 20, 3, 20, 3, 20, 3, 20, 3, 20, 3, 20, 3, 20, 3, 20, 3, 20, 3, 20, 3, 20, 3, 20, 5, 20, 241, 10, 20, 3, 21, 3, 21, 3, 21, 3, 21, 3, 22, 3, 22, 3, 22, 7, 22, 250, 10, 22, 12, 22, 14, 22, 253, 11, 22, 3, 23, 3, 23, 3, 23, 3, 23, 7, 23, 259, 10, 23, 12, 23, 14, 23, 262, 11, 23, 3, 24, 3, 24, 3, 24, 3, 24, 3, 25, 3, 25, 3, 25, 3, 25, 3, 25, 3, 25, 5, 25, 274, 10, 25, 5, 25, 276, 10, 25, 3, 26, 3, 26, 3, 26, 3, 26, 3, 26, 3, 27, 3, 27, 3, 27, 3, 27, 3, 27, 3, 27, 3, 27, 3, 27, 3, 27, 3, 27, 3, 27, 3, 27, 3, 27, 3, 27, 3, 27, 5, 27, 298, 10, 27, 3, 28, 3, 28, 3, 28, 3, 29, 3, 29, 3, 30, 3, 30, 3, 30, 5, 30, 308, 10, 30, 3, 30, 3, 30, 3, 30, 3, 30, 5, 30, 314, 10, 30, 3, 31, 3, 31, 5, 31, 318, 10, 31, 3, 31, 3, 31, 3, 32, 3, 32, 3, 32, 3, 32, 7, 32, 326, 10, 32, 12, 32, 14, 32, 329, 11, 32, 5, 32, 331, 10, 32, 3, 32, 5, 32, 334, 10, 32, 3, 32, 3, 32, 3, 33, 3, 33, 3, 34, 3, 34, 3, 35, 3, 35, 3, 36, 3, 36, 3, 37, 3, 37, 3, 38, 3, 38, 6, 38, 350, 10, 38, 13, 38, 14, 38, 351, 3, 38, 7, 38, 355, 10, 38, 12, 38, 14, 38, 358, 11, 38, 3, 39, 3, 39, 3, 39, 3, 39, 3, 39, 3, 39, 3, 39, 3, 39, 3, 39, 5, 39, 369, 10, 39, 3, 40, 3, 40, 3, 40, 3, 40, 7, 40, 375, 10, 40, 12, 40, 14, 40, 378, 11, 40, 6, 40, 380, 10, 40, 13, 40, 14, 40, 381, 3, 40, 3, 40, 3, 40, 3, 40, 3, 40, 7, 40, 389, 10, 40, 12, 40, 14, 40, 392, 11, 40, 7, 40, 394, 10, 40, 12, 40, 14, 40, 397, 11, 40, 3, 40, 3, 40, 3, 40, 7, 40, 402, 10, 40, 12, 40, 14, 40, 405, 11, 40, 7, 40, 407, 10, 40, 12, 40, 14, 40, 410, 11, 40, 5, 40, 412, 10, 40, 3, 41, 3, 41, 3, 42, 3, 42, 3, 42, 3, 42, 3, 43, 3, 43, 5, 43, 422, 10, 43, 3, 44, 3, 44, 3, 44, 3, 44, 3, 45, 7, 45, 429, 10, 45, 12, 45, 14, 45, 432, 11, 45, 3, 46, 3, 46, 3, 46, 3, 46, 3, 47, 3, 47, 3, 47, 3, 47, 7, 47, 442, 10, 47, 12, 47, 14, 47, 445, 11, 47, 5, 47, 447, 10, 47, 3, 47, 3, 47, 3, 48, 3, 48, 3, 48, 3, 48, 3, 48, 3, 48, 3, 48, 3, 48, 3, 48, 3, 48, 3, 48, 3, 48, 3, 48, 3, 48, 3, 48, 3, 48, 3, 48, 5, 48, 468, 10, 48, 3, 48, 3, 48, 3, 48, 3, 48, 3, 48, 3, 48, 3, 48, 3, 48, 3, 48, 3, 48, 3, 48, 3, 48, 5, 48, 482, 10, 48, 3, 48, 3, 48, 3, 48, 3, 48, 3, 48, 3, 48, 3, 48, 3, 48, 3, 48, 3, 48, 3, 48, 3, 48, 3, 48, 3, 48, 3, 48, 3, 48, 3, 48, 3, 48, 3, 48, 3, 48, 3, 48, 5, 48, 505, 10, 48, 3, 48, 3, 48, 7, 48, 509, 10, 48, 12, 48, 14, 48, 512, 11, 48, 3, 49, 3, 49, 3, 49, 5, 49, 517, 10, 49, 3, 49, 3, 49, 3, 49, 3, 49, 3, 49, 3, 49, 3, 49, 3, 49, 3, 49, 3, 49, 3, 49, 3, 49, 3, 49, 3, 49, 3, 49, 3, 49, 3, 49, 3, 49, 3, 49, 3, 49, 3, 49, 3, 49, 3, 49, 5, 49, 542, 10, 49, 3, 50, 3, 50, 3, 51, 3, 51, 3, 51, 5, 51, 549, 10, 51, 3, 52, 3, 52, 3, 53, 3, 53, 3, 54, 3, 54, 3, 55, 3, 55, 3, 56, 3, 56, 3, 57, 3, 57, 3, 57, 2, 3, 94, 58, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60, 62, 64, 66, 68, 70, 72, 74, 76, 78, 80, 82, 84, 86, 88, 90, 92, 94, 96, 98, 100, 102, 104, 106, 108, 110, 112, 2, 9, 3, 2, 61, 62, 3, 2, 46, 47, 4, 2, 46, 46, 53, 54, 3, 2, 17, 22, 3, 2, 23, 25, 3, 2, 26, 27, 4, 2, 26, 27, 56, 57, 2, 592, 2, 114, 3, 2, 2, 2, 4, 119, 3, 2, 2, 2, 6, 126, 3, 2, 2, 2, 8, 130, 3, 2, 2, 2, 10, 147, 3, 2, 2, 2, 12, 149, 3, 2, 2, 2, 14, 165, 3, 2, 2, 2, 16, 167, 3, 2, 2, 2, 18, 176, 3, 2, 2, 2, 20, 182, 3, 2, 2, 2, 22, 186, 3, 2, 2, 2, 24, 190, 3, 2, 2, 2, 26, 194, 3, 2, 2, 2, 28, 196, 3, 2, 2, 2, 30, 199, 3, 2, 2, 2, 32, 207, 3, 2, 2, 2, 34, 209, 3, 2, 2, 2, 36, 218, 3, 2, 2, 2, 38, 240, 3, 2, 2, 2, 40, 242, 3, 2, 2, 2, 42, 246, 3, 2, 2, 2, 44, 254, 3, 2, 2, 2, 46, 263, 3, 2, 2, 2, 48, 275, 3, 2, 2, 2, 50, 277, 3, 2, 2, 2, 52, 297, 3, 2, 2, 2, 54, 299, 3, 2, 2, 2, 56, 302, 3, 2, 2, 2, 58, 307, 3, 2, 2, 2, 60, 315, 3, 2, 2, 2, 62, 321, 3, 2, 2, 2, 64, 337, 3, 2, 2, 2, 66, 339, 3, 2, 2, 2, 68, 341, 3, 2, 2, 2, 70, 343, 3, 2, 2, 2, 72, 345, 3, 2, 2, 2, 74, 347, 3, 2, 2, 2, 76, 368, 3, 2, 2, 2, 78, 411, 3, 2, 2, 2, 80, 413, 3, 2, 2, 2, 82, 415, 3, 2, 2, 2, 84, 421, 3, 2, 2, 2, 86, 423, 3, 2, 2, 2, 88, 430, 3, 2, 2, 2, 90, 433, 3, 2, 2, 2, 92, 437, 3, 2, 2, 2, 94, 467, 3, 2, 2, 2, 96, 541, 3, 2, 2, 2, 98, 543, 3, 2, 2, 2, 100, 548, 3, 2, 2, 2, 102, 550, 3, 2, 2, 2, 104, 552, 3, 2, 2, 2, 106, 554, 3, 2, 2, 2, 108, 556, 3, 2, 2, 2, 110, 558, 3, 2, 2, 2, 112, 560, 3, 2, 2, 2, 114, 115, 5, 4, 3, 2, 115, 3, 3, 2, 2, 2, 116, 118, 5, 6, 4, 2, 117, 116, 3, 2, 2, 2, 118, 121, 3, 2, 2, 2, 119, 117, 3, 2, 2, 2, 119, 120, 3, 2, 2, 2, 120, 122, 3, 2, 2, 2, 121, 119, 3, 2, 2, 2, 122, 123, 5, 8, 5, 2, 123, 5, 3, 2, 2, 2, 124, 127, 5, 90, 46, 2, 125, 127, 5, 52, 27, 2, 126, 124, 3, 2, 2, 2, 126, 125, 3, 2, 2, 2, 127, 7, 3, 2, 2, 2, 128, 131, 5, 10, 6, 2, 129, 131, 5, 12, 7, 2, 130, 128, 3, 2, 2, 2, 130, 129, 3, 2, 2, 2, 131, 9, 3, 2, 2, 2, 132, 134, 7, 38, 2, 2, 133, 135, 7, 39, 2, 2, 134, 133, 3, 2, 2, 2, 134, 135, 3, 2, 2, 2, 135, 136, 3, 2, 2, 2, 136, 148, 5, 94, 48, 2, 137, 139, 7, 38, 2, 2, 138, 140, 7, 39, 2, 2, 139, 138, 3, 2, 2, 2, 139, 140, 3, 2, 2, 2, 140, 141, 3, 2, 2, 2, 141, 142, 7, 13, 2, 2, 142, 143, 5, 12, 7, 2, 143, 144, 7, 14, 2, 2, 144, 148, 3, 2, 2, 2, 145, 146, 7, 38, 2, 2, 146, 148, 5, 96, 49, 2, 147, 132, 3, 2, 2, 2, 147, 137, 3, 2, 2, 2, 147, 145, 3, 2, 2, 2, 148, 11, 3, 2, 2, 2, 149, 150, 7, 37, 2, 2, 150, 153, 5, 14, 8, 2, 151, 152, 7, 10, 2, 2, 152, 154, 5, 16, 9, 2, 153, 151, 3, 2, 2, 2, 153, 154, 3, 2, 2, 2, 154, 155, 3, 2, 2, 2, 155, 156, 7, 58, 2, 2, 156, 160, 5, 18, 10, 2, 157, 159, 5, 24, 13, 2, 158, 157, 3, 2, 2, 2, 159, 162, 3, 2, 2, 2, 160, 158, 3, 2, 2, 2, 160, 161, 3, 2, 2, 2, 161, 163, 3, 2, 2, 2, 162, 160, 3, 2, 2, 2, 163, 164, 5, 26, 14, 2, 164, 13, 3, 2, 2, 2, 165, 166, 7, 60, 2, 2, 166, 15, 3, 2, 2, 2, 167, 168, 7, 60, 2, 2, 168, 17, 3, 2, 2, 2, 169, 177, 5, 90, 46, 2, 170, 177, 5, 60, 31, 2, 171, 177, 5, 62, 32, 2, 172, 177, 5, 56, 29, 2, 173, 177, 5, 78, 40, 2, 174, 177, 5, 58, 30, 2, 175, 177, 5, 54, 28, 2, 176, 169, 3, 2, 2, 2, 176, 170, 3, 2, 2, 2, 176, 171, 3, 2, 2, 2, 176, 172, 3, 2, 2, 2, 176, 173, 3, 2, 2, 2, 176, 174, 3, 2, 2, 2, 176, 175, 3, 2, 2, 2, 177, 19, 3, 2, 2, 2, 178, 183, 5, 30, 16, 2, 179, 183, 5, 34, 18, 2, 180, 183, 5, 28, 15, 2, 181, 183, 5, 38, 20, 2, 182, 178, 3, 2, 2, 2, 182, 179, 3, 2, 2, 2, 182, 180, 3, 2, 2, 2, 182, 181, 3, 2, 2, 2, 183, 21, 3, 2, 2, 2, 184, 187, 5, 52, 27, 2, 185, 187, 5, 90, 46, 2, 186, 184, 3, 2, 2, 2, 186, 185, 3, 2, 2, 2, 187, 23, 3, 2, 2, 2, 188, 191, 5, 22, 12, 2, 189, 191, 5, 20, 11, 2, 190, 188, 3, 2, 2, 2, 190, 189, 3, 2, 2, 2, 191, 25, 3, 2, 2, 2, 192, 195, 5, 10, 6, 2, 193, 195, 5, 12, 7, 2, 194, 192, 3, 2, 2, 2, 194, 193, 3, 2, 2, 2, 195, 27, 3, 2, 2, 2, 196, 197, 7, 40, 2, 2, 197, 198, 5, 94, 48, 2, 198, 29, 3, 2, 2, 2, 199, 200, 7, 42, 2, 2, 200, 203, 5, 32, 17, 2, 201, 202, 7, 10, 2, 2, 202, 204, 5, 32, 17, 2, 203, 201, 3, 2, 2, 2, 203, 204, 3, 2, 2, 2, 204, 31, 3, 2, 2, 2, 205, 208, 7, 63, 2, 2, 206, 208, 5, 54, 28, 2, 207, 205, 3, 2, 2, 2, 207, 206, 3, 2, 2, 2, 208, 33, 3, 2, 2, 2, 209, 210, 7, 41, 2, 2, 210, 215, 5, 36, 19, 2, 211, 212, 7, 10, 2, 2, 212, 214, 5, 36, 19, 2, 213, 211, 3, 2, 2, 2, 214, 217, 3, 2, 2, 2, 215, 213, 3, 2, 2, 2, 215, 216, 3, 2, 2, 2, 216, 35, 3, 2, 2, 2, 217, 215, 3, 2, 2, 2, 218, 220, 5, 94, 48, 2, 219, 221, 7, 45, 2, 2, 220, 219, 3, 2, 2, 2, 220, 221, 3, 2, 2, 2, 221, 37, 3, 2, 2, 2, 222, 223, 7, 44, 2, 2, 223, 241, 5, 50, 26, 2, 224, 225, 7, 44, 2, 2, 225, 241, 5, 44, 23, 2, 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263, 264, 7, 60, 2, 2, 264, 265, 7, 33, 2, 2, 265, 266, 5, 90, 46, 2, 266, 47, 3, 2, 2, 2, 267, 268, 7, 49, 2, 2, 268, 276, 5, 40, 21, 2, 269, 270, 7, 49, 2, 2, 270, 273, 7, 60, 2, 2, 271, 272, 7, 50, 2, 2, 272, 274, 7, 60, 2, 2, 273, 271, 3, 2, 2, 2, 273, 274, 3, 2, 2, 2, 274, 276, 3, 2, 2, 2, 275, 267, 3, 2, 2, 2, 275, 269, 3, 2, 2, 2, 276, 49, 3, 2, 2, 2, 277, 278, 7, 51, 2, 2, 278, 279, 7, 52, 2, 2, 279, 280, 7, 49, 2, 2, 280, 281, 7, 60, 2, 2, 281, 51, 3, 2, 2, 2, 282, 283, 7, 43, 2, 2, 283, 284, 7, 60, 2, 2, 284, 285, 7, 33, 2, 2, 285, 298, 5, 94, 48, 2, 286, 287, 7, 43, 2, 2, 287, 288, 7, 60, 2, 2, 288, 289, 7, 33, 2, 2, 289, 290, 7, 13, 2, 2, 290, 291, 5, 12, 7, 2, 291, 292, 7, 14, 2, 2, 292, 298, 3, 2, 2, 2, 293, 294, 7, 43, 2, 2, 294, 295, 7, 60, 2, 2, 295, 296, 7, 33, 2, 2, 296, 298, 5, 96, 49, 2, 297, 282, 3, 2, 2, 2, 297, 286, 3, 2, 2, 2, 297, 293, 3, 2, 2, 2, 298, 53, 3, 2, 2, 2, 299, 300, 7, 59, 2, 2, 300, 301, 7, 60, 2, 2, 301, 55, 3, 2, 2, 2, 302, 303, 7, 60, 2, 2, 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486, 5, 94, 48, 21, 486, 515, 3, 2, 2, 2, 487, 488, 12, 19, 2, 2, 488, 489, 5, 100, 51, 2, 489, 490, 5, 94, 48, 20, 490, 515, 3, 2, 2, 2, 491, 492, 12, 18, 2, 2, 492, 493, 5, 102, 52, 2, 493, 494, 5, 94, 48, 19, 494, 515, 3, 2, 2, 2, 495, 496, 12, 17, 2, 2, 496, 497, 5, 104, 53, 2, 497, 498, 5, 94, 48, 18, 498, 515, 3, 2, 2, 2, 499, 500, 12, 16, 2, 2, 500, 501, 5, 106, 54, 2, 501, 502, 5, 94, 48, 17, 502, 515, 3, 2, 2, 2, 503, 504, 12, 15, 2, 2, 504, 505, 5, 108, 55, 2, 505, 506, 5, 94, 48, 16, 506, 515, 3, 2, 2, 2, 507, 508, 12, 14, 2, 2, 508, 510, 7, 34, 2, 2, 509, 511, 5, 94, 48, 2, 510, 509, 3, 2, 2, 2, 510, 511, 3, 2, 2, 2, 511, 512, 3, 2, 2, 2, 512, 513, 7, 7, 2, 2, 513, 515, 5, 94, 48, 15, 514, 471, 3, 2, 2, 2, 514, 475, 3, 2, 2, 2, 514, 479, 3, 2, 2, 2, 514, 487, 3, 2, 2, 2, 514, 491, 3, 2, 2, 2, 514, 495, 3, 2, 2, 2, 514, 499, 3, 2, 2, 2, 514, 503, 3, 2, 2, 2, 514, 507, 3, 2, 2, 2, 515, 518, 3, 2, 2, 2, 516, 514, 3, 2, 2, 2, 516, 517, 3, 2, 2, 2, 517, 95, 3, 2, 2, 2, 518, 516, 3, 2, 2, 2, 519, 520, 5, 94, 48, 2, 520, 522, 7, 34, 2, 2, 521, 523, 5, 94, 48, 2, 522, 521, 3, 2, 2, 2, 522, 523, 3, 2, 2, 2, 523, 524, 3, 2, 2, 2, 524, 525, 7, 7, 2, 2, 525, 526, 7, 13, 2, 2, 526, 527, 5, 12, 7, 2, 527, 528, 7, 14, 2, 2, 528, 548, 3, 2, 2, 2, 529, 530, 5, 94, 48, 2, 530, 531, 7, 34, 2, 2, 531, 532, 7, 13, 2, 2, 532, 533, 5, 12, 7, 2, 533, 534, 7, 14, 2, 2, 534, 535, 7, 7, 2, 2, 535, 536, 5, 94, 48, 2, 536, 548, 3, 2, 2, 2, 537, 538, 5, 94, 48, 2, 538, 539, 7, 34, 2, 2, 539, 540, 7, 13, 2, 2, 540, 541, 5, 12, 7, 2, 541, 542, 7, 14, 2, 2, 542, 543, 7, 7, 2, 2, 543, 544, 7, 13, 2, 2, 544, 545, 5, 12, 7, 2, 545, 546, 7, 14, 2, 2, 546, 548, 3, 2, 2, 2, 547, 519, 3, 2, 2, 2, 547, 529, 3, 2, 2, 2, 547, 537, 3, 2, 2, 2, 548, 97, 3, 2, 2, 2, 549, 550, 9, 4, 2, 2, 550, 99, 3, 2, 2, 2, 551, 555, 7, 58, 2, 2, 552, 553, 7, 57, 2, 2, 553, 555, 7, 58, 2, 2, 554, 551, 3, 2, 2, 2, 554, 552, 3, 2, 2, 2, 555, 101, 3, 2, 2, 2, 556, 557, 9, 5, 2, 2, 557, 103, 3, 2, 2, 2, 558, 559, 9, 6, 2, 2, 559, 105, 3, 2, 2, 2, 560, 561, 7, 30, 2, 2, 561, 107, 3, 2, 2, 2, 562, 563, 7, 31, 2, 2, 563, 109, 3, 2, 2, 2, 564, 565, 9, 7, 2, 2, 565, 111, 3, 2, 2, 2, 566, 567, 9, 8, 2, 2, 567, 113, 3, 2, 2, 2, 568, 569, 9, 9, 2, 2, 569, 115, 3, 2, 2, 2, 53, 121, 128, 132, 136, 141, 149, 155, 162, 178, 184, 188, 192, 196, 205, 209, 217, 222, 242, 253, 262, 275, 277, 299, 309, 315, 319, 329, 332, 335, 353, 358, 370, 378, 383, 392, 397, 405, 410, 413, 423, 432, 445, 448, 469, 483, 510, 514, 516, 522, 547, 554]
\ No newline at end of file
diff --git a/pkg/parser/fql/fql_parser.go b/pkg/parser/fql/fql_parser.go
index b24236ea..ac8933e6 100644
--- a/pkg/parser/fql/fql_parser.go
+++ b/pkg/parser/fql/fql_parser.go
@@ -15,7 +15,7 @@ var _ = reflect.Copy
 var _ = strconv.Itoa
 
 var parserATN = []uint16{
-	3, 24715, 42794, 33075, 47597, 16764, 15335, 30598, 22884, 3, 65, 563,
+	3, 24715, 42794, 33075, 47597, 16764, 15335, 30598, 22884, 3, 65, 571,
 	4, 2, 9, 2, 4, 3, 9, 3, 4, 4, 9, 4, 4, 5, 9, 5, 4, 6, 9, 6, 4, 7, 9, 7,
 	4, 8, 9, 8, 4, 9, 9, 9, 4, 10, 9, 10, 4, 11, 9, 11, 4, 12, 9, 12, 4, 13,
 	9, 13, 4, 14, 9, 14, 4, 15, 9, 15, 4, 16, 9, 16, 4, 17, 9, 17, 4, 18, 9,
@@ -26,247 +26,250 @@ var parserATN = []uint16{
 	39, 4, 40, 9, 40, 4, 41, 9, 41, 4, 42, 9, 42, 4, 43, 9, 43, 4, 44, 9, 44,
 	4, 45, 9, 45, 4, 46, 9, 46, 4, 47, 9, 47, 4, 48, 9, 48, 4, 49, 9, 49, 4,
 	50, 9, 50, 4, 51, 9, 51, 4, 52, 9, 52, 4, 53, 9, 53, 4, 54, 9, 54, 4, 55,
-	9, 55, 4, 56, 9, 56, 4, 57, 9, 57, 3, 2, 3, 2, 3, 3, 7, 3, 118, 10, 3,
-	12, 3, 14, 3, 121, 11, 3, 3, 3, 3, 3, 3, 4, 3, 4, 5, 4, 127, 10, 4, 3,
-	5, 3, 5, 5, 5, 131, 10, 5, 3, 6, 3, 6, 5, 6, 135, 10, 6, 3, 6, 3, 6, 3,
-	6, 5, 6, 140, 10, 6, 3, 6, 3, 6, 3, 6, 3, 6, 3, 6, 3, 6, 5, 6, 148, 10,
-	6, 3, 7, 3, 7, 3, 7, 3, 7, 5, 7, 154, 10, 7, 3, 7, 3, 7, 3, 7, 7, 7, 159,
-	10, 7, 12, 7, 14, 7, 162, 11, 7, 3, 7, 3, 7, 3, 8, 3, 8, 3, 9, 3, 9, 3,
-	10, 3, 10, 3, 10, 3, 10, 3, 10, 3, 10, 3, 10, 5, 10, 177, 10, 10, 3, 11,
-	3, 11, 3, 11, 3, 11, 5, 11, 183, 10, 11, 3, 12, 3, 12, 5, 12, 187, 10,
-	12, 3, 13, 3, 13, 5, 13, 191, 10, 13, 3, 14, 3, 14, 5, 14, 195, 10, 14,
-	3, 15, 3, 15, 3, 15, 3, 16, 3, 16, 3, 16, 3, 16, 5, 16, 204, 10, 16, 3,
-	17, 3, 17, 5, 17, 208, 10, 17, 3, 18, 3, 18, 3, 18, 3, 18, 7, 18, 214,
-	10, 18, 12, 18, 14, 18, 217, 11, 18, 3, 19, 3, 19, 5, 19, 221, 10, 19,
-	3, 20, 3, 20, 3, 20, 3, 20, 3, 20, 3, 20, 3, 20, 3, 20, 3, 20, 3, 20, 3,
-	20, 3, 20, 3, 20, 3, 20, 3, 20, 3, 20, 3, 20, 3, 20, 5, 20, 241, 10, 20,
-	3, 21, 3, 21, 3, 21, 3, 21, 3, 22, 3, 22, 3, 22, 7, 22, 250, 10, 22, 12,
-	22, 14, 22, 253, 11, 22, 3, 23, 3, 23, 3, 23, 3, 23, 7, 23, 259, 10, 23,
-	12, 23, 14, 23, 262, 11, 23, 3, 24, 3, 24, 3, 24, 3, 24, 3, 25, 3, 25,
-	3, 25, 3, 25, 3, 25, 3, 25, 5, 25, 274, 10, 25, 5, 25, 276, 10, 25, 3,
-	26, 3, 26, 3, 26, 3, 26, 3, 26, 3, 27, 3, 27, 3, 27, 3, 27, 3, 27, 3, 27,
-	3, 27, 3, 27, 3, 27, 3, 27, 3, 27, 3, 27, 3, 27, 3, 27, 3, 27, 5, 27, 298,
-	10, 27, 3, 28, 3, 28, 3, 28, 3, 29, 3, 29, 3, 30, 3, 30, 3, 30, 5, 30,
-	308, 10, 30, 3, 30, 3, 30, 3, 30, 3, 30, 5, 30, 314, 10, 30, 3, 31, 3,
-	31, 5, 31, 318, 10, 31, 3, 31, 3, 31, 3, 32, 3, 32, 3, 32, 3, 32, 7, 32,
-	326, 10, 32, 12, 32, 14, 32, 329, 11, 32, 5, 32, 331, 10, 32, 3, 32, 5,
-	32, 334, 10, 32, 3, 32, 3, 32, 3, 33, 3, 33, 3, 34, 3, 34, 3, 35, 3, 35,
-	3, 36, 3, 36, 3, 37, 3, 37, 3, 38, 3, 38, 6, 38, 350, 10, 38, 13, 38, 14,
-	38, 351, 3, 38, 7, 38, 355, 10, 38, 12, 38, 14, 38, 358, 11, 38, 3, 39,
-	3, 39, 3, 39, 3, 39, 3, 39, 3, 39, 3, 39, 3, 39, 3, 39, 5, 39, 369, 10,
-	39, 3, 40, 3, 40, 3, 40, 3, 40, 7, 40, 375, 10, 40, 12, 40, 14, 40, 378,
-	11, 40, 6, 40, 380, 10, 40, 13, 40, 14, 40, 381, 3, 40, 3, 40, 3, 40, 3,
-	40, 3, 40, 7, 40, 389, 10, 40, 12, 40, 14, 40, 392, 11, 40, 7, 40, 394,
-	10, 40, 12, 40, 14, 40, 397, 11, 40, 3, 40, 3, 40, 3, 40, 7, 40, 402, 10,
-	40, 12, 40, 14, 40, 405, 11, 40, 7, 40, 407, 10, 40, 12, 40, 14, 40, 410,
-	11, 40, 5, 40, 412, 10, 40, 3, 41, 3, 41, 3, 42, 3, 42, 3, 42, 3, 42, 3,
-	43, 3, 43, 5, 43, 422, 10, 43, 3, 44, 3, 44, 3, 44, 3, 44, 3, 45, 7, 45,
-	429, 10, 45, 12, 45, 14, 45, 432, 11, 45, 3, 46, 3, 46, 3, 46, 3, 46, 3,
-	47, 3, 47, 3, 47, 3, 47, 7, 47, 442, 10, 47, 12, 47, 14, 47, 445, 11, 47,
-	5, 47, 447, 10, 47, 3, 47, 3, 47, 3, 48, 3, 48, 3, 48, 3, 48, 3, 48, 3,
+	9, 55, 4, 56, 9, 56, 4, 57, 9, 57, 4, 58, 9, 58, 3, 2, 3, 2, 3, 3, 7, 3,
+	120, 10, 3, 12, 3, 14, 3, 123, 11, 3, 3, 3, 3, 3, 3, 4, 3, 4, 5, 4, 129,
+	10, 4, 3, 5, 3, 5, 5, 5, 133, 10, 5, 3, 6, 3, 6, 5, 6, 137, 10, 6, 3, 6,
+	3, 6, 3, 6, 5, 6, 142, 10, 6, 3, 6, 3, 6, 3, 6, 3, 6, 3, 6, 3, 6, 5, 6,
+	150, 10, 6, 3, 7, 3, 7, 3, 7, 3, 7, 5, 7, 156, 10, 7, 3, 7, 3, 7, 3, 7,
+	7, 7, 161, 10, 7, 12, 7, 14, 7, 164, 11, 7, 3, 7, 3, 7, 3, 8, 3, 8, 3,
+	9, 3, 9, 3, 10, 3, 10, 3, 10, 3, 10, 3, 10, 3, 10, 3, 10, 5, 10, 179, 10,
+	10, 3, 11, 3, 11, 3, 11, 3, 11, 5, 11, 185, 10, 11, 3, 12, 3, 12, 5, 12,
+	189, 10, 12, 3, 13, 3, 13, 5, 13, 193, 10, 13, 3, 14, 3, 14, 5, 14, 197,
+	10, 14, 3, 15, 3, 15, 3, 15, 3, 16, 3, 16, 3, 16, 3, 16, 5, 16, 206, 10,
+	16, 3, 17, 3, 17, 5, 17, 210, 10, 17, 3, 18, 3, 18, 3, 18, 3, 18, 7, 18,
+	216, 10, 18, 12, 18, 14, 18, 219, 11, 18, 3, 19, 3, 19, 5, 19, 223, 10,
+	19, 3, 20, 3, 20, 3, 20, 3, 20, 3, 20, 3, 20, 3, 20, 3, 20, 3, 20, 3, 20,
+	3, 20, 3, 20, 3, 20, 3, 20, 3, 20, 3, 20, 3, 20, 3, 20, 5, 20, 243, 10,
+	20, 3, 21, 3, 21, 3, 21, 3, 21, 3, 22, 3, 22, 3, 22, 7, 22, 252, 10, 22,
+	12, 22, 14, 22, 255, 11, 22, 3, 23, 3, 23, 3, 23, 3, 23, 7, 23, 261, 10,
+	23, 12, 23, 14, 23, 264, 11, 23, 3, 24, 3, 24, 3, 24, 3, 24, 3, 25, 3,
+	25, 3, 25, 3, 25, 3, 25, 3, 25, 5, 25, 276, 10, 25, 5, 25, 278, 10, 25,
+	3, 26, 3, 26, 3, 26, 3, 26, 3, 26, 3, 27, 3, 27, 3, 27, 3, 27, 3, 27, 3,
+	27, 3, 27, 3, 27, 3, 27, 3, 27, 3, 27, 3, 27, 3, 27, 3, 27, 3, 27, 5, 27,
+	300, 10, 27, 3, 28, 3, 28, 3, 28, 3, 29, 3, 29, 3, 30, 3, 30, 3, 30, 5,
+	30, 310, 10, 30, 3, 30, 3, 30, 3, 30, 3, 30, 5, 30, 316, 10, 30, 3, 31,
+	3, 31, 5, 31, 320, 10, 31, 3, 31, 3, 31, 3, 32, 3, 32, 3, 32, 3, 32, 7,
+	32, 328, 10, 32, 12, 32, 14, 32, 331, 11, 32, 5, 32, 333, 10, 32, 3, 32,
+	5, 32, 336, 10, 32, 3, 32, 3, 32, 3, 33, 3, 33, 3, 34, 3, 34, 3, 35, 3,
+	35, 3, 36, 3, 36, 3, 37, 3, 37, 3, 38, 3, 38, 6, 38, 352, 10, 38, 13, 38,
+	14, 38, 353, 3, 38, 7, 38, 357, 10, 38, 12, 38, 14, 38, 360, 11, 38, 3,
+	39, 3, 39, 3, 39, 3, 39, 3, 39, 3, 39, 3, 39, 3, 39, 3, 39, 5, 39, 371,
+	10, 39, 3, 40, 3, 40, 3, 40, 3, 40, 7, 40, 377, 10, 40, 12, 40, 14, 40,
+	380, 11, 40, 6, 40, 382, 10, 40, 13, 40, 14, 40, 383, 3, 40, 3, 40, 3,
+	40, 3, 40, 3, 40, 7, 40, 391, 10, 40, 12, 40, 14, 40, 394, 11, 40, 7, 40,
+	396, 10, 40, 12, 40, 14, 40, 399, 11, 40, 3, 40, 3, 40, 3, 40, 7, 40, 404,
+	10, 40, 12, 40, 14, 40, 407, 11, 40, 7, 40, 409, 10, 40, 12, 40, 14, 40,
+	412, 11, 40, 5, 40, 414, 10, 40, 3, 41, 3, 41, 3, 42, 3, 42, 3, 42, 3,
+	42, 3, 43, 3, 43, 5, 43, 424, 10, 43, 3, 44, 3, 44, 3, 44, 3, 44, 3, 45,
+	7, 45, 431, 10, 45, 12, 45, 14, 45, 434, 11, 45, 3, 46, 3, 46, 3, 46, 3,
+	46, 3, 47, 3, 47, 3, 47, 3, 47, 7, 47, 444, 10, 47, 12, 47, 14, 47, 447,
+	11, 47, 5, 47, 449, 10, 47, 3, 47, 3, 47, 3, 48, 3, 48, 3, 48, 3, 48, 3,
 	48, 3, 48, 3, 48, 3, 48, 3, 48, 3, 48, 3, 48, 3, 48, 3, 48, 3, 48, 3, 48,
-	3, 48, 5, 48, 468, 10, 48, 3, 48, 3, 48, 3, 48, 3, 48, 3, 48, 3, 48, 3,
-	48, 3, 48, 3, 48, 3, 48, 3, 48, 3, 48, 5, 48, 482, 10, 48, 3, 48, 3, 48,
+	3, 48, 3, 48, 5, 48, 470, 10, 48, 3, 48, 3, 48, 3, 48, 3, 48, 3, 48, 3,
+	48, 3, 48, 3, 48, 3, 48, 3, 48, 3, 48, 3, 48, 5, 48, 484, 10, 48, 3, 48,
 	3, 48, 3, 48, 3, 48, 3, 48, 3, 48, 3, 48, 3, 48, 3, 48, 3, 48, 3, 48, 3,
-	48, 3, 48, 3, 48, 3, 48, 3, 48, 3, 48, 3, 48, 3, 48, 3, 48, 5, 48, 505,
-	10, 48, 3, 48, 3, 48, 7, 48, 509, 10, 48, 12, 48, 14, 48, 512, 11, 48,
-	3, 49, 3, 49, 3, 49, 5, 49, 517, 10, 49, 3, 49, 3, 49, 3, 49, 3, 49, 3,
+	48, 3, 48, 3, 48, 3, 48, 3, 48, 3, 48, 3, 48, 3, 48, 3, 48, 3, 48, 3, 48,
+	3, 48, 3, 48, 3, 48, 5, 48, 511, 10, 48, 3, 48, 3, 48, 7, 48, 515, 10,
+	48, 12, 48, 14, 48, 518, 11, 48, 3, 49, 3, 49, 3, 49, 5, 49, 523, 10, 49,
+	3, 49, 3, 49, 3, 49, 3, 49, 3, 49, 3, 49, 3, 49, 3, 49, 3, 49, 3, 49, 3,
 	49, 3, 49, 3, 49, 3, 49, 3, 49, 3, 49, 3, 49, 3, 49, 3, 49, 3, 49, 3, 49,
-	3, 49, 3, 49, 3, 49, 3, 49, 3, 49, 3, 49, 3, 49, 3, 49, 5, 49, 542, 10,
-	49, 3, 50, 3, 50, 3, 51, 3, 51, 3, 51, 5, 51, 549, 10, 51, 3, 52, 3, 52,
-	3, 53, 3, 53, 3, 54, 3, 54, 3, 55, 3, 55, 3, 56, 3, 56, 3, 57, 3, 57, 3,
-	57, 2, 3, 94, 58, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30,
-	32, 34, 36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60, 62, 64, 66,
-	68, 70, 72, 74, 76, 78, 80, 82, 84, 86, 88, 90, 92, 94, 96, 98, 100, 102,
-	104, 106, 108, 110, 112, 2, 9, 3, 2, 61, 62, 3, 2, 46, 47, 4, 2, 46, 46,
-	53, 54, 3, 2, 17, 22, 3, 2, 23, 25, 3, 2, 26, 27, 4, 2, 26, 27, 56, 57,
-	2, 592, 2, 114, 3, 2, 2, 2, 4, 119, 3, 2, 2, 2, 6, 126, 3, 2, 2, 2, 8,
-	130, 3, 2, 2, 2, 10, 147, 3, 2, 2, 2, 12, 149, 3, 2, 2, 2, 14, 165, 3,
-	2, 2, 2, 16, 167, 3, 2, 2, 2, 18, 176, 3, 2, 2, 2, 20, 182, 3, 2, 2, 2,
-	22, 186, 3, 2, 2, 2, 24, 190, 3, 2, 2, 2, 26, 194, 3, 2, 2, 2, 28, 196,
-	3, 2, 2, 2, 30, 199, 3, 2, 2, 2, 32, 207, 3, 2, 2, 2, 34, 209, 3, 2, 2,
-	2, 36, 218, 3, 2, 2, 2, 38, 240, 3, 2, 2, 2, 40, 242, 3, 2, 2, 2, 42, 246,
-	3, 2, 2, 2, 44, 254, 3, 2, 2, 2, 46, 263, 3, 2, 2, 2, 48, 275, 3, 2, 2,
-	2, 50, 277, 3, 2, 2, 2, 52, 297, 3, 2, 2, 2, 54, 299, 3, 2, 2, 2, 56, 302,
-	3, 2, 2, 2, 58, 307, 3, 2, 2, 2, 60, 315, 3, 2, 2, 2, 62, 321, 3, 2, 2,
-	2, 64, 337, 3, 2, 2, 2, 66, 339, 3, 2, 2, 2, 68, 341, 3, 2, 2, 2, 70, 343,
-	3, 2, 2, 2, 72, 345, 3, 2, 2, 2, 74, 347, 3, 2, 2, 2, 76, 368, 3, 2, 2,
-	2, 78, 411, 3, 2, 2, 2, 80, 413, 3, 2, 2, 2, 82, 415, 3, 2, 2, 2, 84, 421,
-	3, 2, 2, 2, 86, 423, 3, 2, 2, 2, 88, 430, 3, 2, 2, 2, 90, 433, 3, 2, 2,
-	2, 92, 437, 3, 2, 2, 2, 94, 467, 3, 2, 2, 2, 96, 541, 3, 2, 2, 2, 98, 543,
-	3, 2, 2, 2, 100, 548, 3, 2, 2, 2, 102, 550, 3, 2, 2, 2, 104, 552, 3, 2,
-	2, 2, 106, 554, 3, 2, 2, 2, 108, 556, 3, 2, 2, 2, 110, 558, 3, 2, 2, 2,
-	112, 560, 3, 2, 2, 2, 114, 115, 5, 4, 3, 2, 115, 3, 3, 2, 2, 2, 116, 118,
-	5, 6, 4, 2, 117, 116, 3, 2, 2, 2, 118, 121, 3, 2, 2, 2, 119, 117, 3, 2,
-	2, 2, 119, 120, 3, 2, 2, 2, 120, 122, 3, 2, 2, 2, 121, 119, 3, 2, 2, 2,
-	122, 123, 5, 8, 5, 2, 123, 5, 3, 2, 2, 2, 124, 127, 5, 90, 46, 2, 125,
-	127, 5, 52, 27, 2, 126, 124, 3, 2, 2, 2, 126, 125, 3, 2, 2, 2, 127, 7,
-	3, 2, 2, 2, 128, 131, 5, 10, 6, 2, 129, 131, 5, 12, 7, 2, 130, 128, 3,
-	2, 2, 2, 130, 129, 3, 2, 2, 2, 131, 9, 3, 2, 2, 2, 132, 134, 7, 38, 2,
-	2, 133, 135, 7, 39, 2, 2, 134, 133, 3, 2, 2, 2, 134, 135, 3, 2, 2, 2, 135,
-	136, 3, 2, 2, 2, 136, 148, 5, 94, 48, 2, 137, 139, 7, 38, 2, 2, 138, 140,
-	7, 39, 2, 2, 139, 138, 3, 2, 2, 2, 139, 140, 3, 2, 2, 2, 140, 141, 3, 2,
-	2, 2, 141, 142, 7, 13, 2, 2, 142, 143, 5, 12, 7, 2, 143, 144, 7, 14, 2,
-	2, 144, 148, 3, 2, 2, 2, 145, 146, 7, 38, 2, 2, 146, 148, 5, 96, 49, 2,
-	147, 132, 3, 2, 2, 2, 147, 137, 3, 2, 2, 2, 147, 145, 3, 2, 2, 2, 148,
-	11, 3, 2, 2, 2, 149, 150, 7, 37, 2, 2, 150, 153, 5, 14, 8, 2, 151, 152,
-	7, 10, 2, 2, 152, 154, 5, 16, 9, 2, 153, 151, 3, 2, 2, 2, 153, 154, 3,
-	2, 2, 2, 154, 155, 3, 2, 2, 2, 155, 156, 7, 58, 2, 2, 156, 160, 5, 18,
-	10, 2, 157, 159, 5, 24, 13, 2, 158, 157, 3, 2, 2, 2, 159, 162, 3, 2, 2,
-	2, 160, 158, 3, 2, 2, 2, 160, 161, 3, 2, 2, 2, 161, 163, 3, 2, 2, 2, 162,
-	160, 3, 2, 2, 2, 163, 164, 5, 26, 14, 2, 164, 13, 3, 2, 2, 2, 165, 166,
-	7, 60, 2, 2, 166, 15, 3, 2, 2, 2, 167, 168, 7, 60, 2, 2, 168, 17, 3, 2,
-	2, 2, 169, 177, 5, 90, 46, 2, 170, 177, 5, 60, 31, 2, 171, 177, 5, 62,
-	32, 2, 172, 177, 5, 56, 29, 2, 173, 177, 5, 78, 40, 2, 174, 177, 5, 58,
-	30, 2, 175, 177, 5, 54, 28, 2, 176, 169, 3, 2, 2, 2, 176, 170, 3, 2, 2,
-	2, 176, 171, 3, 2, 2, 2, 176, 172, 3, 2, 2, 2, 176, 173, 3, 2, 2, 2, 176,
-	174, 3, 2, 2, 2, 176, 175, 3, 2, 2, 2, 177, 19, 3, 2, 2, 2, 178, 183, 5,
-	30, 16, 2, 179, 183, 5, 34, 18, 2, 180, 183, 5, 28, 15, 2, 181, 183, 5,
-	38, 20, 2, 182, 178, 3, 2, 2, 2, 182, 179, 3, 2, 2, 2, 182, 180, 3, 2,
-	2, 2, 182, 181, 3, 2, 2, 2, 183, 21, 3, 2, 2, 2, 184, 187, 5, 52, 27, 2,
-	185, 187, 5, 90, 46, 2, 186, 184, 3, 2, 2, 2, 186, 185, 3, 2, 2, 2, 187,
-	23, 3, 2, 2, 2, 188, 191, 5, 22, 12, 2, 189, 191, 5, 20, 11, 2, 190, 188,
-	3, 2, 2, 2, 190, 189, 3, 2, 2, 2, 191, 25, 3, 2, 2, 2, 192, 195, 5, 10,
-	6, 2, 193, 195, 5, 12, 7, 2, 194, 192, 3, 2, 2, 2, 194, 193, 3, 2, 2, 2,
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+	5, 30, 16, 2, 181, 185, 5, 34, 18, 2, 182, 185, 5, 28, 15, 2, 183, 185,
+	5, 38, 20, 2, 184, 180, 3, 2, 2, 2, 184, 181, 3, 2, 2, 2, 184, 182, 3,
+	2, 2, 2, 184, 183, 3, 2, 2, 2, 185, 21, 3, 2, 2, 2, 186, 189, 5, 52, 27,
+	2, 187, 189, 5, 90, 46, 2, 188, 186, 3, 2, 2, 2, 188, 187, 3, 2, 2, 2,
+	189, 23, 3, 2, 2, 2, 190, 193, 5, 22, 12, 2, 191, 193, 5, 20, 11, 2, 192,
+	190, 3, 2, 2, 2, 192, 191, 3, 2, 2, 2, 193, 25, 3, 2, 2, 2, 194, 197, 5,
+	10, 6, 2, 195, 197, 5, 12, 7, 2, 196, 194, 3, 2, 2, 2, 196, 195, 3, 2,
+	2, 2, 197, 27, 3, 2, 2, 2, 198, 199, 7, 40, 2, 2, 199, 200, 5, 94, 48,
+	2, 200, 29, 3, 2, 2, 2, 201, 202, 7, 42, 2, 2, 202, 205, 5, 32, 17, 2,
+	203, 204, 7, 10, 2, 2, 204, 206, 5, 32, 17, 2, 205, 203, 3, 2, 2, 2, 205,
+	206, 3, 2, 2, 2, 206, 31, 3, 2, 2, 2, 207, 210, 7, 63, 2, 2, 208, 210,
+	5, 54, 28, 2, 209, 207, 3, 2, 2, 2, 209, 208, 3, 2, 2, 2, 210, 33, 3, 2,
+	2, 2, 211, 212, 7, 41, 2, 2, 212, 217, 5, 36, 19, 2, 213, 214, 7, 10, 2,
+	2, 214, 216, 5, 36, 19, 2, 215, 213, 3, 2, 2, 2, 216, 219, 3, 2, 2, 2,
+	217, 215, 3, 2, 2, 2, 217, 218, 3, 2, 2, 2, 218, 35, 3, 2, 2, 2, 219, 217,
+	3, 2, 2, 2, 220, 222, 5, 94, 48, 2, 221, 223, 7, 45, 2, 2, 222, 221, 3,
+	2, 2, 2, 222, 223, 3, 2, 2, 2, 223, 37, 3, 2, 2, 2, 224, 225, 7, 44, 2,
+	2, 225, 243, 5, 50, 26, 2, 226, 227, 7, 44, 2, 2, 227, 243, 5, 44, 23,
+	2, 228, 229, 7, 44, 2, 2, 229, 230, 5, 42, 22, 2, 230, 231, 5, 44, 23,
+	2, 231, 243, 3, 2, 2, 2, 232, 233, 7, 44, 2, 2, 233, 234, 5, 42, 22, 2,
+	234, 235, 5, 48, 25, 2, 235, 243, 3, 2, 2, 2, 236, 237, 7, 44, 2, 2, 237,
+	238, 5, 42, 22, 2, 238, 239, 5, 50, 26, 2, 239, 243, 3, 2, 2, 2, 240, 241,
+	7, 44, 2, 2, 241, 243, 5, 42, 22, 2, 242, 224, 3, 2, 2, 2, 242, 226, 3,
+	2, 2, 2, 242, 228, 3, 2, 2, 2, 242, 232, 3, 2, 2, 2, 242, 236, 3, 2, 2,
+	2, 242, 240, 3, 2, 2, 2, 243, 39, 3, 2, 2, 2, 244, 245, 7, 60, 2, 2, 245,
+	246, 7, 33, 2, 2, 246, 247, 5, 94, 48, 2, 247, 41, 3, 2, 2, 2, 248, 253,
+	5, 40, 21, 2, 249, 250, 7, 10, 2, 2, 250, 252, 5, 40, 21, 2, 251, 249,
+	3, 2, 2, 2, 252, 255, 3, 2, 2, 2, 253, 251, 3, 2, 2, 2, 253, 254, 3, 2,
+	2, 2, 254, 43, 3, 2, 2, 2, 255, 253, 3, 2, 2, 2, 256, 257, 7, 55, 2, 2,
+	257, 262, 5, 46, 24, 2, 258, 259, 7, 10, 2, 2, 259, 261, 5, 46, 24, 2,
+	260, 258, 3, 2, 2, 2, 261, 264, 3, 2, 2, 2, 262, 260, 3, 2, 2, 2, 262,
+	263, 3, 2, 2, 2, 263, 45, 3, 2, 2, 2, 264, 262, 3, 2, 2, 2, 265, 266, 7,
+	60, 2, 2, 266, 267, 7, 33, 2, 2, 267, 268, 5, 90, 46, 2, 268, 47, 3, 2,
+	2, 2, 269, 270, 7, 49, 2, 2, 270, 278, 5, 40, 21, 2, 271, 272, 7, 49, 2,
+	2, 272, 275, 7, 60, 2, 2, 273, 274, 7, 50, 2, 2, 274, 276, 7, 60, 2, 2,
+	275, 273, 3, 2, 2, 2, 275, 276, 3, 2, 2, 2, 276, 278, 3, 2, 2, 2, 277,
+	269, 3, 2, 2, 2, 277, 271, 3, 2, 2, 2, 278, 49, 3, 2, 2, 2, 279, 280, 7,
+	51, 2, 2, 280, 281, 7, 52, 2, 2, 281, 282, 7, 49, 2, 2, 282, 283, 7, 60,
+	2, 2, 283, 51, 3, 2, 2, 2, 284, 285, 7, 43, 2, 2, 285, 286, 7, 60, 2, 2,
+	286, 287, 7, 33, 2, 2, 287, 300, 5, 94, 48, 2, 288, 289, 7, 43, 2, 2, 289,
+	290, 7, 60, 2, 2, 290, 291, 7, 33, 2, 2, 291, 292, 7, 13, 2, 2, 292, 293,
+	5, 12, 7, 2, 293, 294, 7, 14, 2, 2, 294, 300, 3, 2, 2, 2, 295, 296, 7,
+	43, 2, 2, 296, 297, 7, 60, 2, 2, 297, 298, 7, 33, 2, 2, 298, 300, 5, 96,
+	49, 2, 299, 284, 3, 2, 2, 2, 299, 288, 3, 2, 2, 2, 299, 295, 3, 2, 2, 2,
+	300, 53, 3, 2, 2, 2, 301, 302, 7, 59, 2, 2, 302, 303, 7, 60, 2, 2, 303,
+	55, 3, 2, 2, 2, 304, 305, 7, 60, 2, 2, 305, 57, 3, 2, 2, 2, 306, 310, 5,
+	68, 35, 2, 307, 310, 5, 56, 29, 2, 308, 310, 5, 54, 28, 2, 309, 306, 3,
+	2, 2, 2, 309, 307, 3, 2, 2, 2, 309, 308, 3, 2, 2, 2, 310, 311, 3, 2, 2,
+	2, 311, 315, 7, 32, 2, 2, 312, 316, 5, 68, 35, 2, 313, 316, 5, 56, 29,
+	2, 314, 316, 5, 54, 28, 2, 315, 312, 3, 2, 2, 2, 315, 313, 3, 2, 2, 2,
+	315, 314, 3, 2, 2, 2, 316, 59, 3, 2, 2, 2, 317, 319, 7, 11, 2, 2, 318,
+	320, 5, 74, 38, 2, 319, 318, 3, 2, 2, 2, 319, 320, 3, 2, 2, 2, 320, 321,
+	3, 2, 2, 2, 321, 322, 7, 12, 2, 2, 322, 61, 3, 2, 2, 2, 323, 332, 7, 15,
+	2, 2, 324, 329, 5, 76, 39, 2, 325, 326, 7, 10, 2, 2, 326, 328, 5, 76, 39,
+	2, 327, 325, 3, 2, 2, 2, 328, 331, 3, 2, 2, 2, 329, 327, 3, 2, 2, 2, 329,
+	330, 3, 2, 2, 2, 330, 333, 3, 2, 2, 2, 331, 329, 3, 2, 2, 2, 332, 324,
+	3, 2, 2, 2, 332, 333, 3, 2, 2, 2, 333, 335, 3, 2, 2, 2, 334, 336, 7, 10,
+	2, 2, 335, 334, 3, 2, 2, 2, 335, 336, 3, 2, 2, 2, 336, 337, 3, 2, 2, 2,
+	337, 338, 7, 16, 2, 2, 338, 63, 3, 2, 2, 2, 339, 340, 7, 48, 2, 2, 340,
+	65, 3, 2, 2, 2, 341, 342, 9, 2, 2, 2, 342, 67, 3, 2, 2, 2, 343, 344, 7,
+	63, 2, 2, 344, 69, 3, 2, 2, 2, 345, 346, 7, 64, 2, 2, 346, 71, 3, 2, 2,
+	2, 347, 348, 9, 3, 2, 2, 348, 73, 3, 2, 2, 2, 349, 358, 5, 94, 48, 2, 350,
+	352, 7, 10, 2, 2, 351, 350, 3, 2, 2, 2, 352, 353, 3, 2, 2, 2, 353, 351,
+	3, 2, 2, 2, 353, 354, 3, 2, 2, 2, 354, 355, 3, 2, 2, 2, 355, 357, 5, 94,
+	48, 2, 356, 351, 3, 2, 2, 2, 357, 360, 3, 2, 2, 2, 358, 356, 3, 2, 2, 2,
+	358, 359, 3, 2, 2, 2, 359, 75, 3, 2, 2, 2, 360, 358, 3, 2, 2, 2, 361, 362,
+	5, 84, 43, 2, 362, 363, 7, 7, 2, 2, 363, 364, 5, 94, 48, 2, 364, 371, 3,
+	2, 2, 2, 365, 366, 5, 82, 42, 2, 366, 367, 7, 7, 2, 2, 367, 368, 5, 94,
+	48, 2, 368, 371, 3, 2, 2, 2, 369, 371, 5, 80, 41, 2, 370, 361, 3, 2, 2,
+	2, 370, 365, 3, 2, 2, 2, 370, 369, 3, 2, 2, 2, 371, 77, 3, 2, 2, 2, 372,
+	381, 7, 60, 2, 2, 373, 374, 7, 9, 2, 2, 374, 378, 5, 84, 43, 2, 375, 377,
+	5, 82, 42, 2, 376, 375, 3, 2, 2, 2, 377, 380, 3, 2, 2, 2, 378, 376, 3,
+	2, 2, 2, 378, 379, 3, 2, 2, 2, 379, 382, 3, 2, 2, 2, 380, 378, 3, 2, 2,
+	2, 381, 373, 3, 2, 2, 2, 382, 383, 3, 2, 2, 2, 383, 381, 3, 2, 2, 2, 383,
+	384, 3, 2, 2, 2, 384, 414, 3, 2, 2, 2, 385, 386, 7, 60, 2, 2, 386, 397,
+	5, 82, 42, 2, 387, 388, 7, 9, 2, 2, 388, 392, 5, 84, 43, 2, 389, 391, 5,
+	82, 42, 2, 390, 389, 3, 2, 2, 2, 391, 394, 3, 2, 2, 2, 392, 390, 3, 2,
+	2, 2, 392, 393, 3, 2, 2, 2, 393, 396, 3, 2, 2, 2, 394, 392, 3, 2, 2, 2,
+	395, 387, 3, 2, 2, 2, 396, 399, 3, 2, 2, 2, 397, 395, 3, 2, 2, 2, 397,
+	398, 3, 2, 2, 2, 398, 410, 3, 2, 2, 2, 399, 397, 3, 2, 2, 2, 400, 405,
+	5, 82, 42, 2, 401, 402, 7, 9, 2, 2, 402, 404, 5, 84, 43, 2, 403, 401, 3,
+	2, 2, 2, 404, 407, 3, 2, 2, 2, 405, 403, 3, 2, 2, 2, 405, 406, 3, 2, 2,
+	2, 406, 409, 3, 2, 2, 2, 407, 405, 3, 2, 2, 2, 408, 400, 3, 2, 2, 2, 409,
+	412, 3, 2, 2, 2, 410, 408, 3, 2, 2, 2, 410, 411, 3, 2, 2, 2, 411, 414,
+	3, 2, 2, 2, 412, 410, 3, 2, 2, 2, 413, 372, 3, 2, 2, 2, 413, 385, 3, 2,
+	2, 2, 414, 79, 3, 2, 2, 2, 415, 416, 5, 56, 29, 2, 416, 81, 3, 2, 2, 2,
+	417, 418, 7, 11, 2, 2, 418, 419, 5, 94, 48, 2, 419, 420, 7, 12, 2, 2, 420,
+	83, 3, 2, 2, 2, 421, 424, 7, 60, 2, 2, 422, 424, 5, 66, 34, 2, 423, 421,
+	3, 2, 2, 2, 423, 422, 3, 2, 2, 2, 424, 85, 3, 2, 2, 2, 425, 426, 7, 13,
+	2, 2, 426, 427, 5, 94, 48, 2, 427, 428, 7, 14, 2, 2, 428, 87, 3, 2, 2,
+	2, 429, 431, 7, 65, 2, 2, 430, 429, 3, 2, 2, 2, 431, 434, 3, 2, 2, 2, 432,
+	430, 3, 2, 2, 2, 432, 433, 3, 2, 2, 2, 433, 89, 3, 2, 2, 2, 434, 432, 3,
+	2, 2, 2, 435, 436, 5, 88, 45, 2, 436, 437, 7, 60, 2, 2, 437, 438, 5, 92,
+	47, 2, 438, 91, 3, 2, 2, 2, 439, 448, 7, 13, 2, 2, 440, 445, 5, 94, 48,
+	2, 441, 442, 7, 10, 2, 2, 442, 444, 5, 94, 48, 2, 443, 441, 3, 2, 2, 2,
+	444, 447, 3, 2, 2, 2, 445, 443, 3, 2, 2, 2, 445, 446, 3, 2, 2, 2, 446,
+	449, 3, 2, 2, 2, 447, 445, 3, 2, 2, 2, 448, 440, 3, 2, 2, 2, 448, 449,
+	3, 2, 2, 2, 449, 450, 3, 2, 2, 2, 450, 451, 7, 14, 2, 2, 451, 93, 3, 2,
+	2, 2, 452, 453, 8, 48, 1, 2, 453, 454, 5, 114, 58, 2, 454, 455, 5, 94,
+	48, 25, 455, 470, 3, 2, 2, 2, 456, 470, 5, 90, 46, 2, 457, 470, 5, 86,
+	44, 2, 458, 470, 5, 58, 30, 2, 459, 470, 5, 66, 34, 2, 460, 470, 5, 68,
+	35, 2, 461, 470, 5, 70, 36, 2, 462, 470, 5, 64, 33, 2, 463, 470, 5, 60,
+	31, 2, 464, 470, 5, 62, 32, 2, 465, 470, 5, 56, 29, 2, 466, 470, 5, 78,
+	40, 2, 467, 470, 5, 72, 37, 2, 468, 470, 5, 54, 28, 2, 469, 452, 3, 2,
+	2, 2, 469, 456, 3, 2, 2, 2, 469, 457, 3, 2, 2, 2, 469, 458, 3, 2, 2, 2,
+	469, 459, 3, 2, 2, 2, 469, 460, 3, 2, 2, 2, 469, 461, 3, 2, 2, 2, 469,
+	462, 3, 2, 2, 2, 469, 463, 3, 2, 2, 2, 469, 464, 3, 2, 2, 2, 469, 465,
+	3, 2, 2, 2, 469, 466, 3, 2, 2, 2, 469, 467, 3, 2, 2, 2, 469, 468, 3, 2,
+	2, 2, 470, 516, 3, 2, 2, 2, 471, 472, 12, 24, 2, 2, 472, 473, 5, 110, 56,
+	2, 473, 474, 5, 94, 48, 25, 474, 515, 3, 2, 2, 2, 475, 476, 12, 23, 2,
+	2, 476, 477, 5, 112, 57, 2, 477, 478, 5, 94, 48, 24, 478, 515, 3, 2, 2,
+	2, 479, 480, 12, 20, 2, 2, 480, 483, 5, 98, 50, 2, 481, 484, 5, 100, 51,
+	2, 482, 484, 5, 102, 52, 2, 483, 481, 3, 2, 2, 2, 483, 482, 3, 2, 2, 2,
+	484, 485, 3, 2, 2, 2, 485, 486, 5, 94, 48, 21, 486, 515, 3, 2, 2, 2, 487,
+	488, 12, 19, 2, 2, 488, 489, 5, 100, 51, 2, 489, 490, 5, 94, 48, 20, 490,
+	515, 3, 2, 2, 2, 491, 492, 12, 18, 2, 2, 492, 493, 5, 102, 52, 2, 493,
+	494, 5, 94, 48, 19, 494, 515, 3, 2, 2, 2, 495, 496, 12, 17, 2, 2, 496,
+	497, 5, 104, 53, 2, 497, 498, 5, 94, 48, 18, 498, 515, 3, 2, 2, 2, 499,
+	500, 12, 16, 2, 2, 500, 501, 5, 106, 54, 2, 501, 502, 5, 94, 48, 17, 502,
+	515, 3, 2, 2, 2, 503, 504, 12, 15, 2, 2, 504, 505, 5, 108, 55, 2, 505,
+	506, 5, 94, 48, 16, 506, 515, 3, 2, 2, 2, 507, 508, 12, 14, 2, 2, 508,
+	510, 7, 34, 2, 2, 509, 511, 5, 94, 48, 2, 510, 509, 3, 2, 2, 2, 510, 511,
+	3, 2, 2, 2, 511, 512, 3, 2, 2, 2, 512, 513, 7, 7, 2, 2, 513, 515, 5, 94,
+	48, 15, 514, 471, 3, 2, 2, 2, 514, 475, 3, 2, 2, 2, 514, 479, 3, 2, 2,
+	2, 514, 487, 3, 2, 2, 2, 514, 491, 3, 2, 2, 2, 514, 495, 3, 2, 2, 2, 514,
+	499, 3, 2, 2, 2, 514, 503, 3, 2, 2, 2, 514, 507, 3, 2, 2, 2, 515, 518,
+	3, 2, 2, 2, 516, 514, 3, 2, 2, 2, 516, 517, 3, 2, 2, 2, 517, 95, 3, 2,
+	2, 2, 518, 516, 3, 2, 2, 2, 519, 520, 5, 94, 48, 2, 520, 522, 7, 34, 2,
+	2, 521, 523, 5, 94, 48, 2, 522, 521, 3, 2, 2, 2, 522, 523, 3, 2, 2, 2,
+	523, 524, 3, 2, 2, 2, 524, 525, 7, 7, 2, 2, 525, 526, 7, 13, 2, 2, 526,
+	527, 5, 12, 7, 2, 527, 528, 7, 14, 2, 2, 528, 548, 3, 2, 2, 2, 529, 530,
+	5, 94, 48, 2, 530, 531, 7, 34, 2, 2, 531, 532, 7, 13, 2, 2, 532, 533, 5,
+	12, 7, 2, 533, 534, 7, 14, 2, 2, 534, 535, 7, 7, 2, 2, 535, 536, 5, 94,
+	48, 2, 536, 548, 3, 2, 2, 2, 537, 538, 5, 94, 48, 2, 538, 539, 7, 34, 2,
+	2, 539, 540, 7, 13, 2, 2, 540, 541, 5, 12, 7, 2, 541, 542, 7, 14, 2, 2,
+	542, 543, 7, 7, 2, 2, 543, 544, 7, 13, 2, 2, 544, 545, 5, 12, 7, 2, 545,
+	546, 7, 14, 2, 2, 546, 548, 3, 2, 2, 2, 547, 519, 3, 2, 2, 2, 547, 529,
+	3, 2, 2, 2, 547, 537, 3, 2, 2, 2, 548, 97, 3, 2, 2, 2, 549, 550, 9, 4,
+	2, 2, 550, 99, 3, 2, 2, 2, 551, 555, 7, 58, 2, 2, 552, 553, 7, 57, 2, 2,
+	553, 555, 7, 58, 2, 2, 554, 551, 3, 2, 2, 2, 554, 552, 3, 2, 2, 2, 555,
+	101, 3, 2, 2, 2, 556, 557, 9, 5, 2, 2, 557, 103, 3, 2, 2, 2, 558, 559,
+	9, 6, 2, 2, 559, 105, 3, 2, 2, 2, 560, 561, 7, 30, 2, 2, 561, 107, 3, 2,
+	2, 2, 562, 563, 7, 31, 2, 2, 563, 109, 3, 2, 2, 2, 564, 565, 9, 7, 2, 2,
+	565, 111, 3, 2, 2, 2, 566, 567, 9, 8, 2, 2, 567, 113, 3, 2, 2, 2, 568,
+	569, 9, 9, 2, 2, 569, 115, 3, 2, 2, 2, 53, 121, 128, 132, 136, 141, 149,
+	155, 162, 178, 184, 188, 192, 196, 205, 209, 217, 222, 242, 253, 262, 275,
+	277, 299, 309, 315, 319, 329, 332, 335, 353, 358, 370, 378, 383, 392, 397,
+	405, 410, 413, 423, 432, 445, 448, 469, 483, 510, 514, 516, 522, 547, 554,
 }
 var deserializer = antlr.NewATNDeserializer(nil)
 var deserializedATN = deserializer.DeserializeFromUInt16(parserATN)
@@ -305,8 +308,8 @@ var ruleNames = []string{
 	"propertyAssignment", "memberExpression", "shorthandPropertyName", "computedPropertyName",
 	"propertyName", "expressionGroup", "namespace", "functionCallExpression",
 	"arguments", "expression", "forTernaryExpression", "arrayOperator", "inOperator",
-	"equalityOperator", "logicalAndOperator", "logicalOrOperator", "multiplicativeOperator",
-	"additiveOperator", "unaryOperator",
+	"equalityOperator", "regexpOperator", "logicalAndOperator", "logicalOrOperator",
+	"multiplicativeOperator", "additiveOperator", "unaryOperator",
 }
 var decisionToDFA = make([]*antlr.DFA, len(deserializedATN.DecisionToState))
 
@@ -455,11 +458,12 @@ const (
 	FqlParserRULE_arrayOperator              = 48
 	FqlParserRULE_inOperator                 = 49
 	FqlParserRULE_equalityOperator           = 50
-	FqlParserRULE_logicalAndOperator         = 51
-	FqlParserRULE_logicalOrOperator          = 52
-	FqlParserRULE_multiplicativeOperator     = 53
-	FqlParserRULE_additiveOperator           = 54
-	FqlParserRULE_unaryOperator              = 55
+	FqlParserRULE_regexpOperator             = 51
+	FqlParserRULE_logicalAndOperator         = 52
+	FqlParserRULE_logicalOrOperator          = 53
+	FqlParserRULE_multiplicativeOperator     = 54
+	FqlParserRULE_additiveOperator           = 55
+	FqlParserRULE_unaryOperator              = 56
 )
 
 // IProgramContext is an interface to support dynamic dispatch.
@@ -562,7 +566,7 @@ func (p *FqlParser) Program() (localctx IProgramContext) {
 
 	p.EnterOuterAlt(localctx, 1)
 	{
-		p.SetState(112)
+		p.SetState(114)
 		p.Body()
 	}
 
@@ -692,22 +696,22 @@ func (p *FqlParser) Body() (localctx IBodyContext) {
 	}()
 
 	p.EnterOuterAlt(localctx, 1)
-	p.SetState(117)
+	p.SetState(119)
 	p.GetErrorHandler().Sync(p)
 	_la = p.GetTokenStream().LA(1)
 
 	for ((_la-41)&-(0x1f+1)) == 0 && ((1<<uint((_la-41)))&((1<<(FqlParserLet-41))|(1<<(FqlParserIdentifier-41))|(1<<(FqlParserNamespaceSegment-41)))) != 0 {
 		{
-			p.SetState(114)
+			p.SetState(116)
 			p.BodyStatement()
 		}
 
-		p.SetState(119)
+		p.SetState(121)
 		p.GetErrorHandler().Sync(p)
 		_la = p.GetTokenStream().LA(1)
 	}
 	{
-		p.SetState(120)
+		p.SetState(122)
 		p.BodyExpression()
 	}
 
@@ -822,21 +826,21 @@ func (p *FqlParser) BodyStatement() (localctx IBodyStatementContext) {
 		}
 	}()
 
-	p.SetState(124)
+	p.SetState(126)
 	p.GetErrorHandler().Sync(p)
 
 	switch p.GetTokenStream().LA(1) {
 	case FqlParserIdentifier, FqlParserNamespaceSegment:
 		p.EnterOuterAlt(localctx, 1)
 		{
-			p.SetState(122)
+			p.SetState(124)
 			p.FunctionCallExpression()
 		}
 
 	case FqlParserLet:
 		p.EnterOuterAlt(localctx, 2)
 		{
-			p.SetState(123)
+			p.SetState(125)
 			p.VariableDeclaration()
 		}
 
@@ -955,21 +959,21 @@ func (p *FqlParser) BodyExpression() (localctx IBodyExpressionContext) {
 		}
 	}()
 
-	p.SetState(128)
+	p.SetState(130)
 	p.GetErrorHandler().Sync(p)
 
 	switch p.GetTokenStream().LA(1) {
 	case FqlParserReturn:
 		p.EnterOuterAlt(localctx, 1)
 		{
-			p.SetState(126)
+			p.SetState(128)
 			p.ReturnExpression()
 		}
 
 	case FqlParserFor:
 		p.EnterOuterAlt(localctx, 2)
 		{
-			p.SetState(127)
+			p.SetState(129)
 			p.ForExpression()
 		}
 
@@ -1115,69 +1119,69 @@ func (p *FqlParser) ReturnExpression() (localctx IReturnExpressionContext) {
 		}
 	}()
 
-	p.SetState(145)
+	p.SetState(147)
 	p.GetErrorHandler().Sync(p)
 	switch p.GetInterpreter().AdaptivePredict(p.GetTokenStream(), 5, p.GetParserRuleContext()) {
 	case 1:
 		p.EnterOuterAlt(localctx, 1)
 		{
-			p.SetState(130)
+			p.SetState(132)
 			p.Match(FqlParserReturn)
 		}
-		p.SetState(132)
+		p.SetState(134)
 		p.GetErrorHandler().Sync(p)
 		_la = p.GetTokenStream().LA(1)
 
 		if _la == FqlParserDistinct {
 			{
-				p.SetState(131)
+				p.SetState(133)
 				p.Match(FqlParserDistinct)
 			}
 
 		}
 		{
-			p.SetState(134)
+			p.SetState(136)
 			p.expression(0)
 		}
 
 	case 2:
 		p.EnterOuterAlt(localctx, 2)
 		{
-			p.SetState(135)
+			p.SetState(137)
 			p.Match(FqlParserReturn)
 		}
-		p.SetState(137)
+		p.SetState(139)
 		p.GetErrorHandler().Sync(p)
 		_la = p.GetTokenStream().LA(1)
 
 		if _la == FqlParserDistinct {
 			{
-				p.SetState(136)
+				p.SetState(138)
 				p.Match(FqlParserDistinct)
 			}
 
 		}
 		{
-			p.SetState(139)
+			p.SetState(141)
 			p.Match(FqlParserOpenParen)
 		}
 		{
-			p.SetState(140)
+			p.SetState(142)
 			p.ForExpression()
 		}
 		{
-			p.SetState(141)
+			p.SetState(143)
 			p.Match(FqlParserCloseParen)
 		}
 
 	case 3:
 		p.EnterOuterAlt(localctx, 3)
 		{
-			p.SetState(143)
+			p.SetState(145)
 			p.Match(FqlParserReturn)
 		}
 		{
-			p.SetState(144)
+			p.SetState(146)
 			p.ForTernaryExpression()
 		}
 
@@ -1352,52 +1356,52 @@ func (p *FqlParser) ForExpression() (localctx IForExpressionContext) {
 
 	p.EnterOuterAlt(localctx, 1)
 	{
-		p.SetState(147)
+		p.SetState(149)
 		p.Match(FqlParserFor)
 	}
 	{
-		p.SetState(148)
+		p.SetState(150)
 		p.ForExpressionValueVariable()
 	}
-	p.SetState(151)
+	p.SetState(153)
 	p.GetErrorHandler().Sync(p)
 	_la = p.GetTokenStream().LA(1)
 
 	if _la == FqlParserComma {
 		{
-			p.SetState(149)
+			p.SetState(151)
 			p.Match(FqlParserComma)
 		}
 		{
-			p.SetState(150)
+			p.SetState(152)
 			p.ForExpressionKeyVariable()
 		}
 
 	}
 	{
-		p.SetState(153)
+		p.SetState(155)
 		p.Match(FqlParserIn)
 	}
 	{
-		p.SetState(154)
+		p.SetState(156)
 		p.ForExpressionSource()
 	}
-	p.SetState(158)
+	p.SetState(160)
 	p.GetErrorHandler().Sync(p)
 	_la = p.GetTokenStream().LA(1)
 
 	for ((_la-38)&-(0x1f+1)) == 0 && ((1<<uint((_la-38)))&((1<<(FqlParserFilter-38))|(1<<(FqlParserSort-38))|(1<<(FqlParserLimit-38))|(1<<(FqlParserLet-38))|(1<<(FqlParserCollect-38))|(1<<(FqlParserIdentifier-38))|(1<<(FqlParserNamespaceSegment-38)))) != 0 {
 		{
-			p.SetState(155)
+			p.SetState(157)
 			p.ForExpressionBody()
 		}
 
-		p.SetState(160)
+		p.SetState(162)
 		p.GetErrorHandler().Sync(p)
 		_la = p.GetTokenStream().LA(1)
 	}
 	{
-		p.SetState(161)
+		p.SetState(163)
 		p.ForExpressionReturn()
 	}
 
@@ -1498,7 +1502,7 @@ func (p *FqlParser) ForExpressionValueVariable() (localctx IForExpressionValueVa
 
 	p.EnterOuterAlt(localctx, 1)
 	{
-		p.SetState(163)
+		p.SetState(165)
 		p.Match(FqlParserIdentifier)
 	}
 
@@ -1599,7 +1603,7 @@ func (p *FqlParser) ForExpressionKeyVariable() (localctx IForExpressionKeyVariab
 
 	p.EnterOuterAlt(localctx, 1)
 	{
-		p.SetState(165)
+		p.SetState(167)
 		p.Match(FqlParserIdentifier)
 	}
 
@@ -1764,55 +1768,55 @@ func (p *FqlParser) ForExpressionSource() (localctx IForExpressionSourceContext)
 		}
 	}()
 
-	p.SetState(174)
+	p.SetState(176)
 	p.GetErrorHandler().Sync(p)
 	switch p.GetInterpreter().AdaptivePredict(p.GetTokenStream(), 8, p.GetParserRuleContext()) {
 	case 1:
 		p.EnterOuterAlt(localctx, 1)
 		{
-			p.SetState(167)
+			p.SetState(169)
 			p.FunctionCallExpression()
 		}
 
 	case 2:
 		p.EnterOuterAlt(localctx, 2)
 		{
-			p.SetState(168)
+			p.SetState(170)
 			p.ArrayLiteral()
 		}
 
 	case 3:
 		p.EnterOuterAlt(localctx, 3)
 		{
-			p.SetState(169)
+			p.SetState(171)
 			p.ObjectLiteral()
 		}
 
 	case 4:
 		p.EnterOuterAlt(localctx, 4)
 		{
-			p.SetState(170)
+			p.SetState(172)
 			p.Variable()
 		}
 
 	case 5:
 		p.EnterOuterAlt(localctx, 5)
 		{
-			p.SetState(171)
+			p.SetState(173)
 			p.MemberExpression()
 		}
 
 	case 6:
 		p.EnterOuterAlt(localctx, 6)
 		{
-			p.SetState(172)
+			p.SetState(174)
 			p.RangeOperator()
 		}
 
 	case 7:
 		p.EnterOuterAlt(localctx, 7)
 		{
-			p.SetState(173)
+			p.SetState(175)
 			p.Param()
 		}
 
@@ -1949,35 +1953,35 @@ func (p *FqlParser) ForExpressionClause() (localctx IForExpressionClauseContext)
 		}
 	}()
 
-	p.SetState(180)
+	p.SetState(182)
 	p.GetErrorHandler().Sync(p)
 
 	switch p.GetTokenStream().LA(1) {
 	case FqlParserLimit:
 		p.EnterOuterAlt(localctx, 1)
 		{
-			p.SetState(176)
+			p.SetState(178)
 			p.LimitClause()
 		}
 
 	case FqlParserSort:
 		p.EnterOuterAlt(localctx, 2)
 		{
-			p.SetState(177)
+			p.SetState(179)
 			p.SortClause()
 		}
 
 	case FqlParserFilter:
 		p.EnterOuterAlt(localctx, 3)
 		{
-			p.SetState(178)
+			p.SetState(180)
 			p.FilterClause()
 		}
 
 	case FqlParserCollect:
 		p.EnterOuterAlt(localctx, 4)
 		{
-			p.SetState(179)
+			p.SetState(181)
 			p.CollectClause()
 		}
 
@@ -2096,21 +2100,21 @@ func (p *FqlParser) ForExpressionStatement() (localctx IForExpressionStatementCo
 		}
 	}()
 
-	p.SetState(184)
+	p.SetState(186)
 	p.GetErrorHandler().Sync(p)
 
 	switch p.GetTokenStream().LA(1) {
 	case FqlParserLet:
 		p.EnterOuterAlt(localctx, 1)
 		{
-			p.SetState(182)
+			p.SetState(184)
 			p.VariableDeclaration()
 		}
 
 	case FqlParserIdentifier, FqlParserNamespaceSegment:
 		p.EnterOuterAlt(localctx, 2)
 		{
-			p.SetState(183)
+			p.SetState(185)
 			p.FunctionCallExpression()
 		}
 
@@ -2229,21 +2233,21 @@ func (p *FqlParser) ForExpressionBody() (localctx IForExpressionBodyContext) {
 		}
 	}()
 
-	p.SetState(188)
+	p.SetState(190)
 	p.GetErrorHandler().Sync(p)
 
 	switch p.GetTokenStream().LA(1) {
 	case FqlParserLet, FqlParserIdentifier, FqlParserNamespaceSegment:
 		p.EnterOuterAlt(localctx, 1)
 		{
-			p.SetState(186)
+			p.SetState(188)
 			p.ForExpressionStatement()
 		}
 
 	case FqlParserFilter, FqlParserSort, FqlParserLimit, FqlParserCollect:
 		p.EnterOuterAlt(localctx, 2)
 		{
-			p.SetState(187)
+			p.SetState(189)
 			p.ForExpressionClause()
 		}
 
@@ -2362,21 +2366,21 @@ func (p *FqlParser) ForExpressionReturn() (localctx IForExpressionReturnContext)
 		}
 	}()
 
-	p.SetState(192)
+	p.SetState(194)
 	p.GetErrorHandler().Sync(p)
 
 	switch p.GetTokenStream().LA(1) {
 	case FqlParserReturn:
 		p.EnterOuterAlt(localctx, 1)
 		{
-			p.SetState(190)
+			p.SetState(192)
 			p.ReturnExpression()
 		}
 
 	case FqlParserFor:
 		p.EnterOuterAlt(localctx, 2)
 		{
-			p.SetState(191)
+			p.SetState(193)
 			p.ForExpression()
 		}
 
@@ -2491,11 +2495,11 @@ func (p *FqlParser) FilterClause() (localctx IFilterClauseContext) {
 
 	p.EnterOuterAlt(localctx, 1)
 	{
-		p.SetState(194)
+		p.SetState(196)
 		p.Match(FqlParserFilter)
 	}
 	{
-		p.SetState(195)
+		p.SetState(197)
 		p.expression(0)
 	}
 
@@ -2624,24 +2628,24 @@ func (p *FqlParser) LimitClause() (localctx ILimitClauseContext) {
 
 	p.EnterOuterAlt(localctx, 1)
 	{
-		p.SetState(197)
+		p.SetState(199)
 		p.Match(FqlParserLimit)
 	}
 	{
-		p.SetState(198)
+		p.SetState(200)
 		p.LimitClauseValue()
 	}
-	p.SetState(201)
+	p.SetState(203)
 	p.GetErrorHandler().Sync(p)
 	_la = p.GetTokenStream().LA(1)
 
 	if _la == FqlParserComma {
 		{
-			p.SetState(199)
+			p.SetState(201)
 			p.Match(FqlParserComma)
 		}
 		{
-			p.SetState(200)
+			p.SetState(202)
 			p.LimitClauseValue()
 		}
 
@@ -2752,21 +2756,21 @@ func (p *FqlParser) LimitClauseValue() (localctx ILimitClauseValueContext) {
 		}
 	}()
 
-	p.SetState(205)
+	p.SetState(207)
 	p.GetErrorHandler().Sync(p)
 
 	switch p.GetTokenStream().LA(1) {
 	case FqlParserIntegerLiteral:
 		p.EnterOuterAlt(localctx, 1)
 		{
-			p.SetState(203)
+			p.SetState(205)
 			p.Match(FqlParserIntegerLiteral)
 		}
 
 	case FqlParserParam:
 		p.EnterOuterAlt(localctx, 2)
 		{
-			p.SetState(204)
+			p.SetState(206)
 			p.Param()
 		}
 
@@ -2903,28 +2907,28 @@ func (p *FqlParser) SortClause() (localctx ISortClauseContext) {
 
 	p.EnterOuterAlt(localctx, 1)
 	{
-		p.SetState(207)
+		p.SetState(209)
 		p.Match(FqlParserSort)
 	}
 	{
-		p.SetState(208)
+		p.SetState(210)
 		p.SortClauseExpression()
 	}
-	p.SetState(213)
+	p.SetState(215)
 	p.GetErrorHandler().Sync(p)
 	_la = p.GetTokenStream().LA(1)
 
 	for _la == FqlParserComma {
 		{
-			p.SetState(209)
+			p.SetState(211)
 			p.Match(FqlParserComma)
 		}
 		{
-			p.SetState(210)
+			p.SetState(212)
 			p.SortClauseExpression()
 		}
 
-		p.SetState(215)
+		p.SetState(217)
 		p.GetErrorHandler().Sync(p)
 		_la = p.GetTokenStream().LA(1)
 	}
@@ -3037,16 +3041,16 @@ func (p *FqlParser) SortClauseExpression() (localctx ISortClauseExpressionContex
 
 	p.EnterOuterAlt(localctx, 1)
 	{
-		p.SetState(216)
+		p.SetState(218)
 		p.expression(0)
 	}
-	p.SetState(218)
+	p.SetState(220)
 	p.GetErrorHandler().Sync(p)
 	_la = p.GetTokenStream().LA(1)
 
 	if _la == FqlParserSortDirection {
 		{
-			p.SetState(217)
+			p.SetState(219)
 			p.Match(FqlParserSortDirection)
 		}
 
@@ -3187,84 +3191,84 @@ func (p *FqlParser) CollectClause() (localctx ICollectClauseContext) {
 		}
 	}()
 
-	p.SetState(238)
+	p.SetState(240)
 	p.GetErrorHandler().Sync(p)
 	switch p.GetInterpreter().AdaptivePredict(p.GetTokenStream(), 17, p.GetParserRuleContext()) {
 	case 1:
 		p.EnterOuterAlt(localctx, 1)
-		{
-			p.SetState(220)
-			p.Match(FqlParserCollect)
-		}
-		{
-			p.SetState(221)
-			p.CollectCounter()
-		}
-
-	case 2:
-		p.EnterOuterAlt(localctx, 2)
 		{
 			p.SetState(222)
 			p.Match(FqlParserCollect)
 		}
 		{
 			p.SetState(223)
-			p.CollectAggregator()
+			p.CollectCounter()
 		}
 
-	case 3:
-		p.EnterOuterAlt(localctx, 3)
+	case 2:
+		p.EnterOuterAlt(localctx, 2)
 		{
 			p.SetState(224)
 			p.Match(FqlParserCollect)
 		}
 		{
 			p.SetState(225)
+			p.CollectAggregator()
+		}
+
+	case 3:
+		p.EnterOuterAlt(localctx, 3)
+		{
+			p.SetState(226)
+			p.Match(FqlParserCollect)
+		}
+		{
+			p.SetState(227)
 			p.CollectGrouping()
 		}
 		{
-			p.SetState(226)
+			p.SetState(228)
 			p.CollectAggregator()
 		}
 
 	case 4:
 		p.EnterOuterAlt(localctx, 4)
 		{
-			p.SetState(228)
+			p.SetState(230)
 			p.Match(FqlParserCollect)
 		}
 		{
-			p.SetState(229)
+			p.SetState(231)
 			p.CollectGrouping()
 		}
 		{
-			p.SetState(230)
+			p.SetState(232)
 			p.CollectGroupVariable()
 		}
 
 	case 5:
 		p.EnterOuterAlt(localctx, 5)
 		{
-			p.SetState(232)
+			p.SetState(234)
 			p.Match(FqlParserCollect)
 		}
 		{
-			p.SetState(233)
+			p.SetState(235)
 			p.CollectGrouping()
 		}
 		{
-			p.SetState(234)
+			p.SetState(236)
 			p.CollectCounter()
 		}
 
 	case 6:
 		p.EnterOuterAlt(localctx, 6)
 		{
-			p.SetState(236)
+			p.SetState(238)
 			p.Match(FqlParserCollect)
 		}
 		{
-			p.SetState(237)
+			p.SetState(239)
 			p.CollectGrouping()
 		}
 
@@ -3381,15 +3385,15 @@ func (p *FqlParser) CollectSelector() (localctx ICollectSelectorContext) {
 
 	p.EnterOuterAlt(localctx, 1)
 	{
-		p.SetState(240)
+		p.SetState(242)
 		p.Match(FqlParserIdentifier)
 	}
 	{
-		p.SetState(241)
+		p.SetState(243)
 		p.Match(FqlParserAssign)
 	}
 	{
-		p.SetState(242)
+		p.SetState(244)
 		p.expression(0)
 	}
 
@@ -3518,24 +3522,24 @@ func (p *FqlParser) CollectGrouping() (localctx ICollectGroupingContext) {
 
 	p.EnterOuterAlt(localctx, 1)
 	{
-		p.SetState(244)
+		p.SetState(246)
 		p.CollectSelector()
 	}
-	p.SetState(249)
+	p.SetState(251)
 	p.GetErrorHandler().Sync(p)
 	_la = p.GetTokenStream().LA(1)
 
 	for _la == FqlParserComma {
 		{
-			p.SetState(245)
+			p.SetState(247)
 			p.Match(FqlParserComma)
 		}
 		{
-			p.SetState(246)
+			p.SetState(248)
 			p.CollectSelector()
 		}
 
-		p.SetState(251)
+		p.SetState(253)
 		p.GetErrorHandler().Sync(p)
 		_la = p.GetTokenStream().LA(1)
 	}
@@ -3669,28 +3673,28 @@ func (p *FqlParser) CollectAggregator() (localctx ICollectAggregatorContext) {
 
 	p.EnterOuterAlt(localctx, 1)
 	{
-		p.SetState(252)
+		p.SetState(254)
 		p.Match(FqlParserAggregate)
 	}
 	{
-		p.SetState(253)
+		p.SetState(255)
 		p.CollectAggregateSelector()
 	}
-	p.SetState(258)
+	p.SetState(260)
 	p.GetErrorHandler().Sync(p)
 	_la = p.GetTokenStream().LA(1)
 
 	for _la == FqlParserComma {
 		{
-			p.SetState(254)
+			p.SetState(256)
 			p.Match(FqlParserComma)
 		}
 		{
-			p.SetState(255)
+			p.SetState(257)
 			p.CollectAggregateSelector()
 		}
 
-		p.SetState(260)
+		p.SetState(262)
 		p.GetErrorHandler().Sync(p)
 		_la = p.GetTokenStream().LA(1)
 	}
@@ -3806,15 +3810,15 @@ func (p *FqlParser) CollectAggregateSelector() (localctx ICollectAggregateSelect
 
 	p.EnterOuterAlt(localctx, 1)
 	{
-		p.SetState(261)
+		p.SetState(263)
 		p.Match(FqlParserIdentifier)
 	}
 	{
-		p.SetState(262)
+		p.SetState(264)
 		p.Match(FqlParserAssign)
 	}
 	{
-		p.SetState(263)
+		p.SetState(265)
 		p.FunctionCallExpression()
 	}
 
@@ -3936,41 +3940,41 @@ func (p *FqlParser) CollectGroupVariable() (localctx ICollectGroupVariableContex
 		}
 	}()
 
-	p.SetState(273)
+	p.SetState(275)
 	p.GetErrorHandler().Sync(p)
 	switch p.GetInterpreter().AdaptivePredict(p.GetTokenStream(), 21, p.GetParserRuleContext()) {
 	case 1:
 		p.EnterOuterAlt(localctx, 1)
-		{
-			p.SetState(265)
-			p.Match(FqlParserInto)
-		}
-		{
-			p.SetState(266)
-			p.CollectSelector()
-		}
-
-	case 2:
-		p.EnterOuterAlt(localctx, 2)
 		{
 			p.SetState(267)
 			p.Match(FqlParserInto)
 		}
 		{
 			p.SetState(268)
+			p.CollectSelector()
+		}
+
+	case 2:
+		p.EnterOuterAlt(localctx, 2)
+		{
+			p.SetState(269)
+			p.Match(FqlParserInto)
+		}
+		{
+			p.SetState(270)
 			p.Match(FqlParserIdentifier)
 		}
-		p.SetState(271)
+		p.SetState(273)
 		p.GetErrorHandler().Sync(p)
 		_la = p.GetTokenStream().LA(1)
 
 		if _la == FqlParserKeep {
 			{
-				p.SetState(269)
+				p.SetState(271)
 				p.Match(FqlParserKeep)
 			}
 			{
-				p.SetState(270)
+				p.SetState(272)
 				p.Match(FqlParserIdentifier)
 			}
 
@@ -4087,19 +4091,19 @@ func (p *FqlParser) CollectCounter() (localctx ICollectCounterContext) {
 
 	p.EnterOuterAlt(localctx, 1)
 	{
-		p.SetState(275)
+		p.SetState(277)
 		p.Match(FqlParserWith)
 	}
 	{
-		p.SetState(276)
+		p.SetState(278)
 		p.Match(FqlParserCount)
 	}
 	{
-		p.SetState(277)
+		p.SetState(279)
 		p.Match(FqlParserInto)
 	}
 	{
-		p.SetState(278)
+		p.SetState(280)
 		p.Match(FqlParserIdentifier)
 	}
 
@@ -4244,71 +4248,71 @@ func (p *FqlParser) VariableDeclaration() (localctx IVariableDeclarationContext)
 		}
 	}()
 
-	p.SetState(295)
+	p.SetState(297)
 	p.GetErrorHandler().Sync(p)
 	switch p.GetInterpreter().AdaptivePredict(p.GetTokenStream(), 22, p.GetParserRuleContext()) {
 	case 1:
 		p.EnterOuterAlt(localctx, 1)
 		{
-			p.SetState(280)
+			p.SetState(282)
 			p.Match(FqlParserLet)
 		}
 		{
-			p.SetState(281)
+			p.SetState(283)
 			p.Match(FqlParserIdentifier)
 		}
 		{
-			p.SetState(282)
+			p.SetState(284)
 			p.Match(FqlParserAssign)
 		}
 		{
-			p.SetState(283)
+			p.SetState(285)
 			p.expression(0)
 		}
 
 	case 2:
 		p.EnterOuterAlt(localctx, 2)
 		{
-			p.SetState(284)
+			p.SetState(286)
 			p.Match(FqlParserLet)
 		}
 		{
-			p.SetState(285)
+			p.SetState(287)
 			p.Match(FqlParserIdentifier)
 		}
 		{
-			p.SetState(286)
+			p.SetState(288)
 			p.Match(FqlParserAssign)
 		}
 		{
-			p.SetState(287)
+			p.SetState(289)
 			p.Match(FqlParserOpenParen)
 		}
 		{
-			p.SetState(288)
+			p.SetState(290)
 			p.ForExpression()
 		}
 		{
-			p.SetState(289)
+			p.SetState(291)
 			p.Match(FqlParserCloseParen)
 		}
 
 	case 3:
 		p.EnterOuterAlt(localctx, 3)
 		{
-			p.SetState(291)
+			p.SetState(293)
 			p.Match(FqlParserLet)
 		}
 		{
-			p.SetState(292)
+			p.SetState(294)
 			p.Match(FqlParserIdentifier)
 		}
 		{
-			p.SetState(293)
+			p.SetState(295)
 			p.Match(FqlParserAssign)
 		}
 		{
-			p.SetState(294)
+			p.SetState(296)
 			p.ForTernaryExpression()
 		}
 
@@ -4415,11 +4419,11 @@ func (p *FqlParser) Param() (localctx IParamContext) {
 
 	p.EnterOuterAlt(localctx, 1)
 	{
-		p.SetState(297)
+		p.SetState(299)
 		p.Match(FqlParserParam)
 	}
 	{
-		p.SetState(298)
+		p.SetState(300)
 		p.Match(FqlParserIdentifier)
 	}
 
@@ -4520,7 +4524,7 @@ func (p *FqlParser) Variable() (localctx IVariableContext) {
 
 	p.EnterOuterAlt(localctx, 1)
 	{
-		p.SetState(300)
+		p.SetState(302)
 		p.Match(FqlParserIdentifier)
 	}
 
@@ -4689,25 +4693,25 @@ func (p *FqlParser) RangeOperator() (localctx IRangeOperatorContext) {
 	}()
 
 	p.EnterOuterAlt(localctx, 1)
-	p.SetState(305)
+	p.SetState(307)
 	p.GetErrorHandler().Sync(p)
 
 	switch p.GetTokenStream().LA(1) {
 	case FqlParserIntegerLiteral:
 		{
-			p.SetState(302)
+			p.SetState(304)
 			p.IntegerLiteral()
 		}
 
 	case FqlParserIdentifier:
 		{
-			p.SetState(303)
+			p.SetState(305)
 			p.Variable()
 		}
 
 	case FqlParserParam:
 		{
-			p.SetState(304)
+			p.SetState(306)
 			p.Param()
 		}
 
@@ -4715,28 +4719,28 @@ func (p *FqlParser) RangeOperator() (localctx IRangeOperatorContext) {
 		panic(antlr.NewNoViableAltException(p, nil, nil, nil, nil, nil))
 	}
 	{
-		p.SetState(307)
+		p.SetState(309)
 		p.Match(FqlParserRange)
 	}
-	p.SetState(311)
+	p.SetState(313)
 	p.GetErrorHandler().Sync(p)
 
 	switch p.GetTokenStream().LA(1) {
 	case FqlParserIntegerLiteral:
 		{
-			p.SetState(308)
+			p.SetState(310)
 			p.IntegerLiteral()
 		}
 
 	case FqlParserIdentifier:
 		{
-			p.SetState(309)
+			p.SetState(311)
 			p.Variable()
 		}
 
 	case FqlParserParam:
 		{
-			p.SetState(310)
+			p.SetState(312)
 			p.Param()
 		}
 
@@ -4856,22 +4860,22 @@ func (p *FqlParser) ArrayLiteral() (localctx IArrayLiteralContext) {
 
 	p.EnterOuterAlt(localctx, 1)
 	{
-		p.SetState(313)
+		p.SetState(315)
 		p.Match(FqlParserOpenBracket)
 	}
-	p.SetState(315)
+	p.SetState(317)
 	p.GetErrorHandler().Sync(p)
 	_la = p.GetTokenStream().LA(1)
 
 	if (((_la)&-(0x1f+1)) == 0 && ((1<<uint(_la))&((1<<FqlParserOpenBracket)|(1<<FqlParserOpenParen)|(1<<FqlParserOpenBrace)|(1<<FqlParserPlus)|(1<<FqlParserMinus))) != 0) || (((_la-44)&-(0x1f+1)) == 0 && ((1<<uint((_la-44)))&((1<<(FqlParserNone-44))|(1<<(FqlParserNull-44))|(1<<(FqlParserBooleanLiteral-44))|(1<<(FqlParserLike-44))|(1<<(FqlParserNot-44))|(1<<(FqlParserParam-44))|(1<<(FqlParserIdentifier-44))|(1<<(FqlParserStringLiteral-44))|(1<<(FqlParserTemplateStringLiteral-44))|(1<<(FqlParserIntegerLiteral-44))|(1<<(FqlParserFloatLiteral-44))|(1<<(FqlParserNamespaceSegment-44)))) != 0) {
 		{
-			p.SetState(314)
+			p.SetState(316)
 			p.ArrayElementList()
 		}
 
 	}
 	{
-		p.SetState(317)
+		p.SetState(319)
 		p.Match(FqlParserCloseBracket)
 	}
 
@@ -5010,53 +5014,53 @@ func (p *FqlParser) ObjectLiteral() (localctx IObjectLiteralContext) {
 
 	p.EnterOuterAlt(localctx, 1)
 	{
-		p.SetState(319)
+		p.SetState(321)
 		p.Match(FqlParserOpenBrace)
 	}
-	p.SetState(328)
+	p.SetState(330)
 	p.GetErrorHandler().Sync(p)
 	_la = p.GetTokenStream().LA(1)
 
 	if _la == FqlParserOpenBracket || (((_la-58)&-(0x1f+1)) == 0 && ((1<<uint((_la-58)))&((1<<(FqlParserIdentifier-58))|(1<<(FqlParserStringLiteral-58))|(1<<(FqlParserTemplateStringLiteral-58)))) != 0) {
 		{
-			p.SetState(320)
+			p.SetState(322)
 			p.PropertyAssignment()
 		}
-		p.SetState(325)
+		p.SetState(327)
 		p.GetErrorHandler().Sync(p)
 		_alt = p.GetInterpreter().AdaptivePredict(p.GetTokenStream(), 26, p.GetParserRuleContext())
 
 		for _alt != 2 && _alt != antlr.ATNInvalidAltNumber {
 			if _alt == 1 {
 				{
-					p.SetState(321)
+					p.SetState(323)
 					p.Match(FqlParserComma)
 				}
 				{
-					p.SetState(322)
+					p.SetState(324)
 					p.PropertyAssignment()
 				}
 
 			}
-			p.SetState(327)
+			p.SetState(329)
 			p.GetErrorHandler().Sync(p)
 			_alt = p.GetInterpreter().AdaptivePredict(p.GetTokenStream(), 26, p.GetParserRuleContext())
 		}
 
 	}
-	p.SetState(331)
+	p.SetState(333)
 	p.GetErrorHandler().Sync(p)
 	_la = p.GetTokenStream().LA(1)
 
 	if _la == FqlParserComma {
 		{
-			p.SetState(330)
+			p.SetState(332)
 			p.Match(FqlParserComma)
 		}
 
 	}
 	{
-		p.SetState(333)
+		p.SetState(335)
 		p.Match(FqlParserCloseBrace)
 	}
 
@@ -5157,7 +5161,7 @@ func (p *FqlParser) BooleanLiteral() (localctx IBooleanLiteralContext) {
 
 	p.EnterOuterAlt(localctx, 1)
 	{
-		p.SetState(335)
+		p.SetState(337)
 		p.Match(FqlParserBooleanLiteral)
 	}
 
@@ -5263,7 +5267,7 @@ func (p *FqlParser) StringLiteral() (localctx IStringLiteralContext) {
 
 	p.EnterOuterAlt(localctx, 1)
 	{
-		p.SetState(337)
+		p.SetState(339)
 		_la = p.GetTokenStream().LA(1)
 
 		if !(_la == FqlParserStringLiteral || _la == FqlParserTemplateStringLiteral) {
@@ -5371,7 +5375,7 @@ func (p *FqlParser) IntegerLiteral() (localctx IIntegerLiteralContext) {
 
 	p.EnterOuterAlt(localctx, 1)
 	{
-		p.SetState(339)
+		p.SetState(341)
 		p.Match(FqlParserIntegerLiteral)
 	}
 
@@ -5472,7 +5476,7 @@ func (p *FqlParser) FloatLiteral() (localctx IFloatLiteralContext) {
 
 	p.EnterOuterAlt(localctx, 1)
 	{
-		p.SetState(341)
+		p.SetState(343)
 		p.Match(FqlParserFloatLiteral)
 	}
 
@@ -5578,7 +5582,7 @@ func (p *FqlParser) NoneLiteral() (localctx INoneLiteralContext) {
 
 	p.EnterOuterAlt(localctx, 1)
 	{
-		p.SetState(343)
+		p.SetState(345)
 		_la = p.GetTokenStream().LA(1)
 
 		if !(_la == FqlParserNone || _la == FqlParserNull) {
@@ -5714,34 +5718,34 @@ func (p *FqlParser) ArrayElementList() (localctx IArrayElementListContext) {
 
 	p.EnterOuterAlt(localctx, 1)
 	{
-		p.SetState(345)
+		p.SetState(347)
 		p.expression(0)
 	}
-	p.SetState(354)
+	p.SetState(356)
 	p.GetErrorHandler().Sync(p)
 	_la = p.GetTokenStream().LA(1)
 
 	for _la == FqlParserComma {
-		p.SetState(347)
+		p.SetState(349)
 		p.GetErrorHandler().Sync(p)
 		_la = p.GetTokenStream().LA(1)
 
 		for ok := true; ok; ok = _la == FqlParserComma {
 			{
-				p.SetState(346)
+				p.SetState(348)
 				p.Match(FqlParserComma)
 			}
 
-			p.SetState(349)
+			p.SetState(351)
 			p.GetErrorHandler().Sync(p)
 			_la = p.GetTokenStream().LA(1)
 		}
 		{
-			p.SetState(351)
+			p.SetState(353)
 			p.expression(0)
 		}
 
-		p.SetState(356)
+		p.SetState(358)
 		p.GetErrorHandler().Sync(p)
 		_la = p.GetTokenStream().LA(1)
 	}
@@ -5881,43 +5885,43 @@ func (p *FqlParser) PropertyAssignment() (localctx IPropertyAssignmentContext) {
 		}
 	}()
 
-	p.SetState(366)
+	p.SetState(368)
 	p.GetErrorHandler().Sync(p)
 	switch p.GetInterpreter().AdaptivePredict(p.GetTokenStream(), 31, p.GetParserRuleContext()) {
 	case 1:
 		p.EnterOuterAlt(localctx, 1)
 		{
-			p.SetState(357)
+			p.SetState(359)
 			p.PropertyName()
 		}
 		{
-			p.SetState(358)
+			p.SetState(360)
 			p.Match(FqlParserColon)
 		}
 		{
-			p.SetState(359)
+			p.SetState(361)
 			p.expression(0)
 		}
 
 	case 2:
 		p.EnterOuterAlt(localctx, 2)
 		{
-			p.SetState(361)
+			p.SetState(363)
 			p.ComputedPropertyName()
 		}
 		{
-			p.SetState(362)
+			p.SetState(364)
 			p.Match(FqlParserColon)
 		}
 		{
-			p.SetState(363)
+			p.SetState(365)
 			p.expression(0)
 		}
 
 	case 3:
 		p.EnterOuterAlt(localctx, 3)
 		{
-			p.SetState(365)
+			p.SetState(367)
 			p.ShorthandPropertyName()
 		}
 
@@ -6074,42 +6078,42 @@ func (p *FqlParser) MemberExpression() (localctx IMemberExpressionContext) {
 
 	var _alt int
 
-	p.SetState(409)
+	p.SetState(411)
 	p.GetErrorHandler().Sync(p)
 	switch p.GetInterpreter().AdaptivePredict(p.GetTokenStream(), 38, p.GetParserRuleContext()) {
 	case 1:
 		p.EnterOuterAlt(localctx, 1)
 		{
-			p.SetState(368)
+			p.SetState(370)
 			p.Match(FqlParserIdentifier)
 		}
-		p.SetState(377)
+		p.SetState(379)
 		p.GetErrorHandler().Sync(p)
 		_alt = 1
 		for ok := true; ok; ok = _alt != 2 && _alt != antlr.ATNInvalidAltNumber {
 			switch _alt {
 			case 1:
 				{
-					p.SetState(369)
+					p.SetState(371)
 					p.Match(FqlParserDot)
 				}
 				{
-					p.SetState(370)
+					p.SetState(372)
 					p.PropertyName()
 				}
-				p.SetState(374)
+				p.SetState(376)
 				p.GetErrorHandler().Sync(p)
 				_alt = p.GetInterpreter().AdaptivePredict(p.GetTokenStream(), 32, p.GetParserRuleContext())
 
 				for _alt != 2 && _alt != antlr.ATNInvalidAltNumber {
 					if _alt == 1 {
 						{
-							p.SetState(371)
+							p.SetState(373)
 							p.ComputedPropertyName()
 						}
 
 					}
-					p.SetState(376)
+					p.SetState(378)
 					p.GetErrorHandler().Sync(p)
 					_alt = p.GetInterpreter().AdaptivePredict(p.GetTokenStream(), 32, p.GetParserRuleContext())
 				}
@@ -6118,7 +6122,7 @@ func (p *FqlParser) MemberExpression() (localctx IMemberExpressionContext) {
 				panic(antlr.NewNoViableAltException(p, nil, nil, nil, nil, nil))
 			}
 
-			p.SetState(379)
+			p.SetState(381)
 			p.GetErrorHandler().Sync(p)
 			_alt = p.GetInterpreter().AdaptivePredict(p.GetTokenStream(), 33, p.GetParserRuleContext())
 		}
@@ -6126,82 +6130,82 @@ func (p *FqlParser) MemberExpression() (localctx IMemberExpressionContext) {
 	case 2:
 		p.EnterOuterAlt(localctx, 2)
 		{
-			p.SetState(381)
+			p.SetState(383)
 			p.Match(FqlParserIdentifier)
 		}
 		{
-			p.SetState(382)
+			p.SetState(384)
 			p.ComputedPropertyName()
 		}
-		p.SetState(393)
+		p.SetState(395)
 		p.GetErrorHandler().Sync(p)
 		_alt = p.GetInterpreter().AdaptivePredict(p.GetTokenStream(), 35, p.GetParserRuleContext())
 
 		for _alt != 2 && _alt != antlr.ATNInvalidAltNumber {
 			if _alt == 1 {
 				{
-					p.SetState(383)
+					p.SetState(385)
 					p.Match(FqlParserDot)
 				}
 				{
-					p.SetState(384)
+					p.SetState(386)
 					p.PropertyName()
 				}
-				p.SetState(388)
+				p.SetState(390)
 				p.GetErrorHandler().Sync(p)
 				_alt = p.GetInterpreter().AdaptivePredict(p.GetTokenStream(), 34, p.GetParserRuleContext())
 
 				for _alt != 2 && _alt != antlr.ATNInvalidAltNumber {
 					if _alt == 1 {
 						{
-							p.SetState(385)
+							p.SetState(387)
 							p.ComputedPropertyName()
 						}
 
 					}
-					p.SetState(390)
+					p.SetState(392)
 					p.GetErrorHandler().Sync(p)
 					_alt = p.GetInterpreter().AdaptivePredict(p.GetTokenStream(), 34, p.GetParserRuleContext())
 				}
 
 			}
-			p.SetState(395)
+			p.SetState(397)
 			p.GetErrorHandler().Sync(p)
 			_alt = p.GetInterpreter().AdaptivePredict(p.GetTokenStream(), 35, p.GetParserRuleContext())
 		}
-		p.SetState(406)
+		p.SetState(408)
 		p.GetErrorHandler().Sync(p)
 		_alt = p.GetInterpreter().AdaptivePredict(p.GetTokenStream(), 37, p.GetParserRuleContext())
 
 		for _alt != 2 && _alt != antlr.ATNInvalidAltNumber {
 			if _alt == 1 {
 				{
-					p.SetState(396)
+					p.SetState(398)
 					p.ComputedPropertyName()
 				}
-				p.SetState(401)
+				p.SetState(403)
 				p.GetErrorHandler().Sync(p)
 				_alt = p.GetInterpreter().AdaptivePredict(p.GetTokenStream(), 36, p.GetParserRuleContext())
 
 				for _alt != 2 && _alt != antlr.ATNInvalidAltNumber {
 					if _alt == 1 {
 						{
-							p.SetState(397)
+							p.SetState(399)
 							p.Match(FqlParserDot)
 						}
 						{
-							p.SetState(398)
+							p.SetState(400)
 							p.PropertyName()
 						}
 
 					}
-					p.SetState(403)
+					p.SetState(405)
 					p.GetErrorHandler().Sync(p)
 					_alt = p.GetInterpreter().AdaptivePredict(p.GetTokenStream(), 36, p.GetParserRuleContext())
 				}
 
 			}
-			p.SetState(408)
+			p.SetState(410)
 			p.GetErrorHandler().Sync(p)
 			_alt = p.GetInterpreter().AdaptivePredict(p.GetTokenStream(), 37, p.GetParserRuleContext())
 		}
@@ -6311,7 +6315,7 @@ func (p *FqlParser) ShorthandPropertyName() (localctx IShorthandPropertyNameCont
 
 	p.EnterOuterAlt(localctx, 1)
 	{
-		p.SetState(411)
+		p.SetState(413)
 		p.Variable()
 	}
 
@@ -6426,15 +6430,15 @@ func (p *FqlParser) ComputedPropertyName() (localctx IComputedPropertyNameContex
 
 	p.EnterOuterAlt(localctx, 1)
 	{
-		p.SetState(413)
+		p.SetState(415)
 		p.Match(FqlParserOpenBracket)
 	}
 	{
-		p.SetState(414)
+		p.SetState(416)
 		p.expression(0)
 	}
 	{
-		p.SetState(415)
+		p.SetState(417)
 		p.Match(FqlParserCloseBracket)
 	}
 
@@ -6543,21 +6547,21 @@ func (p *FqlParser) PropertyName() (localctx IPropertyNameContext) {
 		}
 	}()
 
-	p.SetState(419)
+	p.SetState(421)
 	p.GetErrorHandler().Sync(p)
 
 	switch p.GetTokenStream().LA(1) {
 	case FqlParserIdentifier:
 		p.EnterOuterAlt(localctx, 1)
 		{
-			p.SetState(417)
+			p.SetState(419)
 			p.Match(FqlParserIdentifier)
 		}
 
 	case FqlParserStringLiteral, FqlParserTemplateStringLiteral:
 		p.EnterOuterAlt(localctx, 2)
 		{
-			p.SetState(418)
+			p.SetState(420)
 			p.StringLiteral()
 		}
 
@@ -6676,15 +6680,15 @@ func (p *FqlParser) ExpressionGroup() (localctx IExpressionGroupContext) {
 
 	p.EnterOuterAlt(localctx, 1)
 	{
-		p.SetState(421)
+		p.SetState(423)
 		p.Match(FqlParserOpenParen)
 	}
 	{
-		p.SetState(422)
+		p.SetState(424)
 		p.expression(0)
 	}
 	{
-		p.SetState(423)
+		p.SetState(425)
 		p.Match(FqlParserCloseParen)
 	}
 
@@ -6789,17 +6793,17 @@ func (p *FqlParser) Namespace() (localctx INamespaceContext) {
 	}()
 
 	p.EnterOuterAlt(localctx, 1)
-	p.SetState(428)
+	p.SetState(430)
 	p.GetErrorHandler().Sync(p)
 	_la = p.GetTokenStream().LA(1)
 
 	for _la == FqlParserNamespaceSegment {
 		{
-			p.SetState(425)
+			p.SetState(427)
 			p.Match(FqlParserNamespaceSegment)
 		}
 
-		p.SetState(430)
+		p.SetState(432)
 		p.GetErrorHandler().Sync(p)
 		_la = p.GetTokenStream().LA(1)
 	}
@@ -6921,15 +6925,15 @@ func (p *FqlParser) FunctionCallExpression() (localctx IFunctionCallExpressionCo
 
 	p.EnterOuterAlt(localctx, 1)
 	{
-		p.SetState(431)
+		p.SetState(433)
 		p.Namespace()
 	}
 	{
-		p.SetState(432)
+		p.SetState(434)
 		p.Match(FqlParserIdentifier)
 	}
 	{
-		p.SetState(433)
+		p.SetState(435)
 		p.Arguments()
 	}
 
@@ -7066,40 +7070,40 @@ func (p *FqlParser) Arguments() (localctx IArgumentsContext) {
 
 	p.EnterOuterAlt(localctx, 1)
 	{
-		p.SetState(435)
+		p.SetState(437)
 		p.Match(FqlParserOpenParen)
 	}
-	p.SetState(444)
+	p.SetState(446)
 	p.GetErrorHandler().Sync(p)
 	_la = p.GetTokenStream().LA(1)
 
 	if (((_la)&-(0x1f+1)) == 0 && ((1<<uint(_la))&((1<<FqlParserOpenBracket)|(1<<FqlParserOpenParen)|(1<<FqlParserOpenBrace)|(1<<FqlParserPlus)|(1<<FqlParserMinus))) != 0) || (((_la-44)&-(0x1f+1)) == 0 && ((1<<uint((_la-44)))&((1<<(FqlParserNone-44))|(1<<(FqlParserNull-44))|(1<<(FqlParserBooleanLiteral-44))|(1<<(FqlParserLike-44))|(1<<(FqlParserNot-44))|(1<<(FqlParserParam-44))|(1<<(FqlParserIdentifier-44))|(1<<(FqlParserStringLiteral-44))|(1<<(FqlParserTemplateStringLiteral-44))|(1<<(FqlParserIntegerLiteral-44))|(1<<(FqlParserFloatLiteral-44))|(1<<(FqlParserNamespaceSegment-44)))) != 0) {
 		{
-			p.SetState(436)
+			p.SetState(438)
 			p.expression(0)
 		}
-		p.SetState(441)
+		p.SetState(443)
 		p.GetErrorHandler().Sync(p)
 		_la = p.GetTokenStream().LA(1)
 
 		for _la == FqlParserComma {
 			{
-				p.SetState(437)
+				p.SetState(439)
 				p.Match(FqlParserComma)
 			}
 			{
-				p.SetState(438)
+				p.SetState(440)
 				p.expression(0)
 			}
 
-			p.SetState(443)
+			p.SetState(445)
 			p.GetErrorHandler().Sync(p)
 			_la = p.GetTokenStream().LA(1)
 		}
 
 	}
 	{
-		p.SetState(446)
+		p.SetState(448)
 		p.Match(FqlParserCloseParen)
 	}
 
@@ -7357,6 +7361,16 @@ func (s *ExpressionContext) EqualityOperator() IEqualityOperatorContext {
 	return t.(IEqualityOperatorContext)
 }
 
+func (s *ExpressionContext) RegexpOperator() IRegexpOperatorContext {
+	var t = s.GetTypedRuleContext(reflect.TypeOf((*IRegexpOperatorContext)(nil)).Elem(), 0)
+
+	if t == nil {
+		return nil
+	}
+
+	return t.(IRegexpOperatorContext)
+}
+
 func (s *ExpressionContext) LogicalAndOperator() ILogicalAndOperatorContext {
 	var t = s.GetTypedRuleContext(reflect.TypeOf((*ILogicalAndOperatorContext)(nil)).Elem(), 0)
 
@@ -7448,100 +7462,100 @@ func (p *FqlParser) expression(_p int) (localctx IExpressionContext) {
 	var _alt int
 
 	p.EnterOuterAlt(localctx, 1)
-	p.SetState(465)
+	p.SetState(467)
 	p.GetErrorHandler().Sync(p)
 	switch p.GetInterpreter().AdaptivePredict(p.GetTokenStream(), 43, p.GetParserRuleContext()) {
 	case 1:
 		{
-			p.SetState(449)
+			p.SetState(451)
 			p.UnaryOperator()
 		}
 		{
-			p.SetState(450)
-			p.expression(22)
+			p.SetState(452)
+			p.expression(23)
 		}
 
 	case 2:
 		{
-			p.SetState(452)
+			p.SetState(454)
 			p.FunctionCallExpression()
 		}
 
 	case 3:
 		{
-			p.SetState(453)
+			p.SetState(455)
 			p.ExpressionGroup()
 		}
 
 	case 4:
 		{
-			p.SetState(454)
+			p.SetState(456)
 			p.RangeOperator()
 		}
 
 	case 5:
 		{
-			p.SetState(455)
+			p.SetState(457)
 			p.StringLiteral()
 		}
 
 	case 6:
 		{
-			p.SetState(456)
+			p.SetState(458)
 			p.IntegerLiteral()
 		}
 
 	case 7:
 		{
-			p.SetState(457)
+			p.SetState(459)
 			p.FloatLiteral()
 		}
 
 	case 8:
 		{
-			p.SetState(458)
+			p.SetState(460)
 			p.BooleanLiteral()
 		}
 
 	case 9:
 		{
-			p.SetState(459)
+			p.SetState(461)
 			p.ArrayLiteral()
 		}
 
 	case 10:
 		{
-			p.SetState(460)
+			p.SetState(462)
 			p.ObjectLiteral()
 		}
 
 	case 11:
 		{
-			p.SetState(461)
+			p.SetState(463)
 			p.Variable()
 		}
 
 	case 12:
 		{
-			p.SetState(462)
+			p.SetState(464)
 			p.MemberExpression()
 		}
 
 	case 13:
 		{
-			p.SetState(463)
+			p.SetState(465)
 			p.NoneLiteral()
 		}
 
 	case 14:
 		{
-			p.SetState(464)
+			p.SetState(466)
 			p.Param()
 		}
 
 	}
 	p.GetParserRuleContext().SetStop(p.GetTokenStream().LT(-1))
-	p.SetState(508)
+	p.SetState(514)
 	p.GetErrorHandler().Sync(p)
 	_alt = p.GetInterpreter().AdaptivePredict(p.GetTokenStream(), 47, p.GetParserRuleContext())
 
@@ -7551,68 +7565,68 @@ func (p *FqlParser) expression(_p int) (localctx IExpressionContext) {
 				p.TriggerExitRuleEvent()
 			}
 			_prevctx = localctx
-			p.SetState(506)
+			p.SetState(512)
 			p.GetErrorHandler().Sync(p)
 			switch p.GetInterpreter().AdaptivePredict(p.GetTokenStream(), 46, p.GetParserRuleContext()) {
 			case 1:
 				localctx = NewExpressionContext(p, _parentctx, _parentState)
 				p.PushNewRecursionContext(localctx, _startState, FqlParserRULE_expression)
-				p.SetState(467)
+				p.SetState(469)
 
-				if !(p.Precpred(p.GetParserRuleContext(), 21)) {
-					panic(antlr.NewFailedPredicateException(p, "p.Precpred(p.GetParserRuleContext(), 21)", ""))
+				if !(p.Precpred(p.GetParserRuleContext(), 22)) {
+					panic(antlr.NewFailedPredicateException(p, "p.Precpred(p.GetParserRuleContext(), 22)", ""))
 				}
 				{
-					p.SetState(468)
+					p.SetState(470)
 					p.MultiplicativeOperator()
 				}
 				{
-					p.SetState(469)
-					p.expression(22)
+					p.SetState(471)
+					p.expression(23)
 				}
 
 			case 2:
 				localctx = NewExpressionContext(p, _parentctx, _parentState)
 				p.PushNewRecursionContext(localctx, _startState, FqlParserRULE_expression)
-				p.SetState(471)
+				p.SetState(473)
 
-				if !(p.Precpred(p.GetParserRuleContext(), 20)) {
-					panic(antlr.NewFailedPredicateException(p, "p.Precpred(p.GetParserRuleContext(), 20)", ""))
+				if !(p.Precpred(p.GetParserRuleContext(), 21)) {
+					panic(antlr.NewFailedPredicateException(p, "p.Precpred(p.GetParserRuleContext(), 21)", ""))
 				}
 				{
-					p.SetState(472)
+					p.SetState(474)
 					p.AdditiveOperator()
 				}
 				{
-					p.SetState(473)
-					p.expression(21)
+					p.SetState(475)
+					p.expression(22)
 				}
 
 			case 3:
 				localctx = NewExpressionContext(p, _parentctx, _parentState)
 				p.PushNewRecursionContext(localctx, _startState, FqlParserRULE_expression)
-				p.SetState(475)
+				p.SetState(477)
 
-				if !(p.Precpred(p.GetParserRuleContext(), 17)) {
-					panic(antlr.NewFailedPredicateException(p, "p.Precpred(p.GetParserRuleContext(), 17)", ""))
+				if !(p.Precpred(p.GetParserRuleContext(), 18)) {
+					panic(antlr.NewFailedPredicateException(p, "p.Precpred(p.GetParserRuleContext(), 18)", ""))
 				}
 				{
-					p.SetState(476)
+					p.SetState(478)
 					p.ArrayOperator()
 				}
-				p.SetState(479)
+				p.SetState(481)
 				p.GetErrorHandler().Sync(p)
 
 				switch p.GetTokenStream().LA(1) {
 				case FqlParserNot, FqlParserIn:
 					{
-						p.SetState(477)
+						p.SetState(479)
 						p.InOperator()
 					}
 
 				case FqlParserGt, FqlParserLt, FqlParserEq, FqlParserGte, FqlParserLte, FqlParserNeq:
 					{
-						p.SetState(478)
+						p.SetState(480)
 						p.EqualityOperator()
 					}
 
@@ -7620,114 +7634,131 @@ func (p *FqlParser) expression(_p int) (localctx IExpressionContext) {
 					panic(antlr.NewNoViableAltException(p, nil, nil, nil, nil, nil))
 				}
 				{
-					p.SetState(481)
-					p.expression(18)
+					p.SetState(483)
+					p.expression(19)
 				}
 
 			case 4:
 				localctx = NewExpressionContext(p, _parentctx, _parentState)
 				p.PushNewRecursionContext(localctx, _startState, FqlParserRULE_expression)
-				p.SetState(483)
+				p.SetState(485)
 
-				if !(p.Precpred(p.GetParserRuleContext(), 16)) {
-					panic(antlr.NewFailedPredicateException(p, "p.Precpred(p.GetParserRuleContext(), 16)", ""))
+				if !(p.Precpred(p.GetParserRuleContext(), 17)) {
+					panic(antlr.NewFailedPredicateException(p, "p.Precpred(p.GetParserRuleContext(), 17)", ""))
 				}
 				{
-					p.SetState(484)
+					p.SetState(486)
 					p.InOperator()
 				}
 				{
-					p.SetState(485)
-					p.expression(17)
+					p.SetState(487)
+					p.expression(18)
 				}
 
 			case 5:
 				localctx = NewExpressionContext(p, _parentctx, _parentState)
 				p.PushNewRecursionContext(localctx, _startState, FqlParserRULE_expression)
-				p.SetState(487)
+				p.SetState(489)
 
-				if !(p.Precpred(p.GetParserRuleContext(), 15)) {
-					panic(antlr.NewFailedPredicateException(p, "p.Precpred(p.GetParserRuleContext(), 15)", ""))
+				if !(p.Precpred(p.GetParserRuleContext(), 16)) {
+					panic(antlr.NewFailedPredicateException(p, "p.Precpred(p.GetParserRuleContext(), 16)", ""))
 				}
 				{
-					p.SetState(488)
+					p.SetState(490)
 					p.EqualityOperator()
 				}
 				{
-					p.SetState(489)
-					p.expression(16)
+					p.SetState(491)
+					p.expression(17)
 				}
 
 			case 6:
 				localctx = NewExpressionContext(p, _parentctx, _parentState)
 				p.PushNewRecursionContext(localctx, _startState, FqlParserRULE_expression)
-				p.SetState(491)
+				p.SetState(493)
 
-				if !(p.Precpred(p.GetParserRuleContext(), 14)) {
-					panic(antlr.NewFailedPredicateException(p, "p.Precpred(p.GetParserRuleContext(), 14)", ""))
+				if !(p.Precpred(p.GetParserRuleContext(), 15)) {
+					panic(antlr.NewFailedPredicateException(p, "p.Precpred(p.GetParserRuleContext(), 15)", ""))
 				}
 				{
-					p.SetState(492)
-					p.LogicalAndOperator()
+					p.SetState(494)
+					p.RegexpOperator()
 				}
 				{
-					p.SetState(493)
-					p.expression(15)
+					p.SetState(495)
+					p.expression(16)
 				}
 
 			case 7:
 				localctx = NewExpressionContext(p, _parentctx, _parentState)
 				p.PushNewRecursionContext(localctx, _startState, FqlParserRULE_expression)
-				p.SetState(495)
+				p.SetState(497)
 
-				if !(p.Precpred(p.GetParserRuleContext(), 13)) {
-					panic(antlr.NewFailedPredicateException(p, "p.Precpred(p.GetParserRuleContext(), 13)", ""))
+				if !(p.Precpred(p.GetParserRuleContext(), 14)) {
+					panic(antlr.NewFailedPredicateException(p, "p.Precpred(p.GetParserRuleContext(), 14)", ""))
 				}
 				{
-					p.SetState(496)
-					p.LogicalOrOperator()
+					p.SetState(498)
+					p.LogicalAndOperator()
 				}
 				{
-					p.SetState(497)
-					p.expression(14)
+					p.SetState(499)
+					p.expression(15)
 				}
 
 			case 8:
 				localctx = NewExpressionContext(p, _parentctx, _parentState)
 				p.PushNewRecursionContext(localctx, _startState, FqlParserRULE_expression)
-				p.SetState(499)
+				p.SetState(501)
+
+				if !(p.Precpred(p.GetParserRuleContext(), 13)) {
+					panic(antlr.NewFailedPredicateException(p, "p.Precpred(p.GetParserRuleContext(), 13)", ""))
+				}
+				{
+					p.SetState(502)
+					p.LogicalOrOperator()
+				}
+				{
+					p.SetState(503)
+					p.expression(14)
+				}
+
+			case 9:
+				localctx = NewExpressionContext(p, _parentctx, _parentState)
+				p.PushNewRecursionContext(localctx, _startState, FqlParserRULE_expression)
+				p.SetState(505)
 
 				if !(p.Precpred(p.GetParserRuleContext(), 12)) {
 					panic(antlr.NewFailedPredicateException(p, "p.Precpred(p.GetParserRuleContext(), 12)", ""))
 				}
 				{
-					p.SetState(500)
+					p.SetState(506)
 					p.Match(FqlParserQuestionMark)
 				}
-				p.SetState(502)
+				p.SetState(508)
 				p.GetErrorHandler().Sync(p)
 				_la = p.GetTokenStream().LA(1)
 
 				if (((_la)&-(0x1f+1)) == 0 && ((1<<uint(_la))&((1<<FqlParserOpenBracket)|(1<<FqlParserOpenParen)|(1<<FqlParserOpenBrace)|(1<<FqlParserPlus)|(1<<FqlParserMinus))) != 0) || (((_la-44)&-(0x1f+1)) == 0 && ((1<<uint((_la-44)))&((1<<(FqlParserNone-44))|(1<<(FqlParserNull-44))|(1<<(FqlParserBooleanLiteral-44))|(1<<(FqlParserLike-44))|(1<<(FqlParserNot-44))|(1<<(FqlParserParam-44))|(1<<(FqlParserIdentifier-44))|(1<<(FqlParserStringLiteral-44))|(1<<(FqlParserTemplateStringLiteral-44))|(1<<(FqlParserIntegerLiteral-44))|(1<<(FqlParserFloatLiteral-44))|(1<<(FqlParserNamespaceSegment-44)))) != 0) {
 					{
-						p.SetState(501)
+						p.SetState(507)
 						p.expression(0)
 					}
 
 				}
 				{
-					p.SetState(504)
+					p.SetState(510)
 					p.Match(FqlParserColon)
 				}
 				{
-					p.SetState(505)
+					p.SetState(511)
 					p.expression(13)
 				}
 
 			}
 
 		}
-		p.SetState(510)
+		p.SetState(516)
 		p.GetErrorHandler().Sync(p)
 		_alt = p.GetInterpreter().AdaptivePredict(p.GetTokenStream(), 47, p.GetParserRuleContext())
 	}
@@ -7894,56 +7925,33 @@ func (p *FqlParser) ForTernaryExpression() (localctx IForTernaryExpressionContex
 		}
 	}()
 
-	p.SetState(539)
+	p.SetState(545)
 	p.GetErrorHandler().Sync(p)
 	switch p.GetInterpreter().AdaptivePredict(p.GetTokenStream(), 49, p.GetParserRuleContext()) {
 	case 1:
 		p.EnterOuterAlt(localctx, 1)
 		{
-			p.SetState(511)
+			p.SetState(517)
 			p.expression(0)
 		}
 		{
-			p.SetState(512)
+			p.SetState(518)
 			p.Match(FqlParserQuestionMark)
 		}
-		p.SetState(514)
+		p.SetState(520)
 		p.GetErrorHandler().Sync(p)
 		_la = p.GetTokenStream().LA(1)
 
 		if (((_la)&-(0x1f+1)) == 0 && ((1<<uint(_la))&((1<<FqlParserOpenBracket)|(1<<FqlParserOpenParen)|(1<<FqlParserOpenBrace)|(1<<FqlParserPlus)|(1<<FqlParserMinus))) != 0) || (((_la-44)&-(0x1f+1)) == 0 && ((1<<uint((_la-44)))&((1<<(FqlParserNone-44))|(1<<(FqlParserNull-44))|(1<<(FqlParserBooleanLiteral-44))|(1<<(FqlParserLike-44))|(1<<(FqlParserNot-44))|(1<<(FqlParserParam-44))|(1<<(FqlParserIdentifier-44))|(1<<(FqlParserStringLiteral-44))|(1<<(FqlParserTemplateStringLiteral-44))|(1<<(FqlParserIntegerLiteral-44))|(1<<(FqlParserFloatLiteral-44))|(1<<(FqlParserNamespaceSegment-44)))) != 0) {
 			{
-				p.SetState(513)
+				p.SetState(519)
 				p.expression(0)
 			}
 
 		}
-		{
-			p.SetState(516)
-			p.Match(FqlParserColon)
-		}
-		{
-			p.SetState(517)
-			p.Match(FqlParserOpenParen)
-		}
-		{
-			p.SetState(518)
-			p.ForExpression()
-		}
-		{
-			p.SetState(519)
-			p.Match(FqlParserCloseParen)
-		}
-
-	case 2:
-		p.EnterOuterAlt(localctx, 2)
-		{
-			p.SetState(521)
-			p.expression(0)
-		}
 		{
 			p.SetState(522)
-			p.Match(FqlParserQuestionMark)
+			p.Match(FqlParserColon)
 		}
 		{
 			p.SetState(523)
@@ -7957,51 +7965,74 @@ func (p *FqlParser) ForTernaryExpression() (localctx IForTernaryExpressionContex
 			p.SetState(525)
 			p.Match(FqlParserCloseParen)
 		}
+
+	case 2:
+		p.EnterOuterAlt(localctx, 2)
 		{
-			p.SetState(526)
+			p.SetState(527)
+			p.expression(0)
+		}
+		{
+			p.SetState(528)
+			p.Match(FqlParserQuestionMark)
+		}
+		{
+			p.SetState(529)
+			p.Match(FqlParserOpenParen)
+		}
+		{
+			p.SetState(530)
+			p.ForExpression()
+		}
+		{
+			p.SetState(531)
+			p.Match(FqlParserCloseParen)
+		}
+		{
+			p.SetState(532)
 			p.Match(FqlParserColon)
 		}
 		{
-			p.SetState(527)
+			p.SetState(533)
 			p.expression(0)
 		}
 
 	case 3:
 		p.EnterOuterAlt(localctx, 3)
 		{
-			p.SetState(529)
+			p.SetState(535)
 			p.expression(0)
 		}
 		{
-			p.SetState(530)
+			p.SetState(536)
 			p.Match(FqlParserQuestionMark)
 		}
 		{
-			p.SetState(531)
+			p.SetState(537)
 			p.Match(FqlParserOpenParen)
 		}
 		{
-			p.SetState(532)
+			p.SetState(538)
 			p.ForExpression()
 		}
 		{
-			p.SetState(533)
+			p.SetState(539)
 			p.Match(FqlParserCloseParen)
 		}
 		{
-			p.SetState(534)
+			p.SetState(540)
 			p.Match(FqlParserColon)
 		}
 		{
-			p.SetState(535)
+			p.SetState(541)
 			p.Match(FqlParserOpenParen)
 		}
 		{
-			p.SetState(536)
+			p.SetState(542)
 			p.ForExpression()
 		}
 		{
-			p.SetState(537)
+			p.SetState(543)
 			p.Match(FqlParserCloseParen)
 		}
 
@@ -8113,7 +8144,7 @@ func (p *FqlParser) ArrayOperator() (localctx IArrayOperatorContext) {
 
 	p.EnterOuterAlt(localctx, 1)
 	{
-		p.SetState(541)
+		p.SetState(547)
 		_la = p.GetTokenStream().LA(1)
 
 		if !(((_la-44)&-(0x1f+1)) == 0 && ((1<<uint((_la-44)))&((1<<(FqlParserNone-44))|(1<<(FqlParserAll-44))|(1<<(FqlParserAny-44)))) != 0) {
@@ -8223,25 +8254,25 @@ func (p *FqlParser) InOperator() (localctx IInOperatorContext) {
 		}
 	}()
 
-	p.SetState(546)
+	p.SetState(552)
 	p.GetErrorHandler().Sync(p)
 
 	switch p.GetTokenStream().LA(1) {
 	case FqlParserIn:
 		p.EnterOuterAlt(localctx, 1)
 		{
-			p.SetState(543)
+			p.SetState(549)
 			p.Match(FqlParserIn)
 		}
 
 	case FqlParserNot:
 		p.EnterOuterAlt(localctx, 2)
 		{
-			p.SetState(544)
+			p.SetState(550)
 			p.Match(FqlParserNot)
 		}
 		{
-			p.SetState(545)
+			p.SetState(551)
 			p.Match(FqlParserIn)
 		}
 
@@ -8367,7 +8398,7 @@ func (p *FqlParser) EqualityOperator() (localctx IEqualityOperatorContext) {
 
 	p.EnterOuterAlt(localctx, 1)
 	{
-		p.SetState(548)
+		p.SetState(554)
 		_la = p.GetTokenStream().LA(1)
 
 		if !(((_la)&-(0x1f+1)) == 0 && ((1<<uint(_la))&((1<<FqlParserGt)|(1<<FqlParserLt)|(1<<FqlParserEq)|(1<<FqlParserGte)|(1<<FqlParserLte)|(1<<FqlParserNeq))) != 0) {
@@ -8381,6 +8412,119 @@ func (p *FqlParser) EqualityOperator() (localctx IEqualityOperatorContext) {
 	return localctx
 }
 
+// IRegexpOperatorContext is an interface to support dynamic dispatch.
+type IRegexpOperatorContext interface {
+	antlr.ParserRuleContext
+
+	// GetParser returns the parser.
+	GetParser() antlr.Parser
+
+	// IsRegexpOperatorContext differentiates from other interfaces.
+	IsRegexpOperatorContext()
+}
+
+type RegexpOperatorContext struct {
+	*antlr.BaseParserRuleContext
+	parser antlr.Parser
+}
+
+func NewEmptyRegexpOperatorContext() *RegexpOperatorContext {
+	var p = new(RegexpOperatorContext)
+	p.BaseParserRuleContext = antlr.NewBaseParserRuleContext(nil, -1)
+	p.RuleIndex = FqlParserRULE_regexpOperator
+	return p
+}
+
+func (*RegexpOperatorContext) IsRegexpOperatorContext() {}
+
+func NewRegexpOperatorContext(parser antlr.Parser, parent antlr.ParserRuleContext, invokingState int) *RegexpOperatorContext {
+	var p = new(RegexpOperatorContext)
+
+	p.BaseParserRuleContext = antlr.NewBaseParserRuleContext(parent, invokingState)
+
+	p.parser = parser
+	p.RuleIndex = FqlParserRULE_regexpOperator
+
+	return p
+}
+
+func (s *RegexpOperatorContext) GetParser() antlr.Parser { return s.parser }
+
+func (s *RegexpOperatorContext) RegexMatch() antlr.TerminalNode {
+	return s.GetToken(FqlParserRegexMatch, 0)
+}
+
+func (s *RegexpOperatorContext) RegexNotMatch() antlr.TerminalNode {
+	return s.GetToken(FqlParserRegexNotMatch, 0)
+}
+
+func (s *RegexpOperatorContext) GetRuleContext() antlr.RuleContext {
+	return s
+}
+
+func (s *RegexpOperatorContext) ToStringTree(ruleNames []string, recog antlr.Recognizer) string {
+	return antlr.TreesStringTree(s, ruleNames, recog)
+}
+
+func (s *RegexpOperatorContext) EnterRule(listener antlr.ParseTreeListener) {
+	if listenerT, ok := listener.(FqlParserListener); ok {
+		listenerT.EnterRegexpOperator(s)
+	}
+}
+
+func (s *RegexpOperatorContext) ExitRule(listener antlr.ParseTreeListener) {
+	if listenerT, ok := listener.(FqlParserListener); ok {
+		listenerT.ExitRegexpOperator(s)
+	}
+}
+
+func (s *RegexpOperatorContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
+	switch t := visitor.(type) {
+	case FqlParserVisitor:
+		return t.VisitRegexpOperator(s)
+
+	default:
+		return t.VisitChildren(s)
+	}
+}
+
+func (p *FqlParser) RegexpOperator() (localctx IRegexpOperatorContext) {
+	localctx = NewRegexpOperatorContext(p, p.GetParserRuleContext(), p.GetState())
+	p.EnterRule(localctx, 102, FqlParserRULE_regexpOperator)
+	var _la int
+
+	defer func() {
+		p.ExitRule()
+	}()
+
+	defer func() {
+		if err := recover(); err != nil {
+			if v, ok := err.(antlr.RecognitionException); ok {
+				localctx.SetException(v)
+				p.GetErrorHandler().ReportError(p, v)
+				p.GetErrorHandler().Recover(p, v)
+			} else {
+				panic(err)
+			}
+		}
+	}()
+
+	p.EnterOuterAlt(localctx, 1)
+	{
+		p.SetState(556)
+		_la = p.GetTokenStream().LA(1)
+
+		if !(_la == FqlParserRegexNotMatch || _la == FqlParserRegexMatch) {
+			p.GetErrorHandler().RecoverInline(p)
+		} else {
+			p.GetErrorHandler().ReportMatch(p)
+			p.Consume()
+		}
+	}
+
+	return localctx
+}
+
 // ILogicalAndOperatorContext is an interface to support dynamic dispatch.
 type ILogicalAndOperatorContext interface {
 	antlr.ParserRuleContext
@@ -8455,7 +8599,7 @@ func (s *LogicalAndOperatorContext) Accept(visitor antlr.ParseTreeVisitor) inter
 
 func (p *FqlParser) LogicalAndOperator() (localctx ILogicalAndOperatorContext) {
 	localctx = NewLogicalAndOperatorContext(p, p.GetParserRuleContext(), p.GetState())
-	p.EnterRule(localctx, 102, FqlParserRULE_logicalAndOperator)
+	p.EnterRule(localctx, 104, FqlParserRULE_logicalAndOperator)
 
 	defer func() {
 		p.ExitRule()
@@ -8475,7 +8619,7 @@ func (p *FqlParser) LogicalAndOperator() (localctx ILogicalAndOperatorContext) {
 
 	p.EnterOuterAlt(localctx, 1)
 	{
-		p.SetState(550)
+		p.SetState(558)
 		p.Match(FqlParserAnd)
 	}
 
@@ -8556,7 +8700,7 @@ func (s *LogicalOrOperatorContext) Accept(visitor antlr.ParseTreeVisitor) interf
 
 func (p *FqlParser) LogicalOrOperator() (localctx ILogicalOrOperatorContext) {
 	localctx = NewLogicalOrOperatorContext(p, p.GetParserRuleContext(), p.GetState())
-	p.EnterRule(localctx, 104, FqlParserRULE_logicalOrOperator)
+	p.EnterRule(localctx, 106, FqlParserRULE_logicalOrOperator)
 
 	defer func() {
 		p.ExitRule()
@@ -8576,7 +8720,7 @@ func (p *FqlParser) LogicalOrOperator() (localctx ILogicalOrOperatorContext) {
 
 	p.EnterOuterAlt(localctx, 1)
 	{
-		p.SetState(552)
+		p.SetState(560)
 		p.Match(FqlParserOr)
 	}
 
@@ -8665,7 +8809,7 @@ func (s *MultiplicativeOperatorContext) Accept(visitor antlr.ParseTreeVisitor) i
 
 func (p *FqlParser) MultiplicativeOperator() (localctx IMultiplicativeOperatorContext) {
 	localctx = NewMultiplicativeOperatorContext(p, p.GetParserRuleContext(), p.GetState())
-	p.EnterRule(localctx, 106, FqlParserRULE_multiplicativeOperator)
+	p.EnterRule(localctx, 108, FqlParserRULE_multiplicativeOperator)
 	var _la int
 
 	defer func() {
@@ -8686,7 +8830,7 @@ func (p *FqlParser) MultiplicativeOperator() (localctx IMultiplicativeOperatorCo
 
 	p.EnterOuterAlt(localctx, 1)
 	{
-		p.SetState(554)
+		p.SetState(562)
 		_la = p.GetTokenStream().LA(1)
 
 		if !(((_la)&-(0x1f+1)) == 0 && ((1<<uint(_la))&((1<<FqlParserMulti)|(1<<FqlParserDiv)|(1<<FqlParserMod))) != 0) {
@@ -8778,7 +8922,7 @@ func (s *AdditiveOperatorContext) Accept(visitor antlr.ParseTreeVisitor) interfa
 
 func (p *FqlParser) AdditiveOperator() (localctx IAdditiveOperatorContext) {
 	localctx = NewAdditiveOperatorContext(p, p.GetParserRuleContext(), p.GetState())
-	p.EnterRule(localctx, 108, FqlParserRULE_additiveOperator)
+	p.EnterRule(localctx, 110, FqlParserRULE_additiveOperator)
 	var _la int
 
 	defer func() {
@@ -8799,7 +8943,7 @@ func (p *FqlParser) AdditiveOperator() (localctx IAdditiveOperatorContext) {
 
 	p.EnterOuterAlt(localctx, 1)
 	{
-		p.SetState(556)
+		p.SetState(564)
 		_la = p.GetTokenStream().LA(1)
 
 		if !(_la == FqlParserPlus || _la == FqlParserMinus) {
@@ -8899,7 +9043,7 @@ func (s *UnaryOperatorContext) Accept(visitor antlr.ParseTreeVisitor) interface{
 
 func (p *FqlParser) UnaryOperator() (localctx IUnaryOperatorContext) {
 	localctx = NewUnaryOperatorContext(p, p.GetParserRuleContext(), p.GetState())
-	p.EnterRule(localctx, 110, FqlParserRULE_unaryOperator)
+	p.EnterRule(localctx, 112, FqlParserRULE_unaryOperator)
 	var _la int
 
 	defer func() {
@@ -8920,7 +9064,7 @@ func (p *FqlParser) UnaryOperator() (localctx IUnaryOperatorContext) {
 
 	p.EnterOuterAlt(localctx, 1)
 	{
-		p.SetState(558)
+		p.SetState(566)
 		_la = p.GetTokenStream().LA(1)
 
 		if !(((_la-24)&-(0x1f+1)) == 0 && ((1<<uint((_la-24)))&((1<<(FqlParserPlus-24))|(1<<(FqlParserMinus-24))|(1<<(FqlParserLike-24))|(1<<(FqlParserNot-24)))) != 0) {
@@ -8951,27 +9095,30 @@ func (p *FqlParser) Sempred(localctx antlr.RuleContext, ruleIndex, predIndex int
 func (p *FqlParser) Expression_Sempred(localctx antlr.RuleContext, predIndex int) bool {
 	switch predIndex {
 	case 0:
-		return p.Precpred(p.GetParserRuleContext(), 21)
+		return p.Precpred(p.GetParserRuleContext(), 22)
 
 	case 1:
-		return p.Precpred(p.GetParserRuleContext(), 20)
+		return p.Precpred(p.GetParserRuleContext(), 21)
 
 	case 2:
-		return p.Precpred(p.GetParserRuleContext(), 17)
+		return p.Precpred(p.GetParserRuleContext(), 18)
 
 	case 3:
-		return p.Precpred(p.GetParserRuleContext(), 16)
+		return p.Precpred(p.GetParserRuleContext(), 17)
 
 	case 4:
-		return p.Precpred(p.GetParserRuleContext(), 15)
+		return p.Precpred(p.GetParserRuleContext(), 16)
 
 	case 5:
-		return p.Precpred(p.GetParserRuleContext(), 14)
+		return p.Precpred(p.GetParserRuleContext(), 15)
 
 	case 6:
-		return p.Precpred(p.GetParserRuleContext(), 13)
+		return p.Precpred(p.GetParserRuleContext(), 14)
 
 	case 7:
+		return p.Precpred(p.GetParserRuleContext(), 13)
+
+	case 8:
 		return p.Precpred(p.GetParserRuleContext(), 12)
 
 	default:
diff --git a/pkg/parser/fql/fqlparser_base_listener.go b/pkg/parser/fql/fqlparser_base_listener.go
index 6b063a4c..9ad2f8b9 100644
--- a/pkg/parser/fql/fqlparser_base_listener.go
+++ b/pkg/parser/fql/fqlparser_base_listener.go
@@ -328,6 +328,12 @@ func (s *BaseFqlParserListener) EnterEqualityOperator(ctx *EqualityOperatorConte
 // ExitEqualityOperator is called when production equalityOperator is exited.
 func (s *BaseFqlParserListener) ExitEqualityOperator(ctx *EqualityOperatorContext) {}
 
+// EnterRegexpOperator is called when production regexpOperator is entered.
+func (s *BaseFqlParserListener) EnterRegexpOperator(ctx *RegexpOperatorContext) {}
+
+// ExitRegexpOperator is called when production regexpOperator is exited.
+func (s *BaseFqlParserListener) ExitRegexpOperator(ctx *RegexpOperatorContext) {}
+
 // EnterLogicalAndOperator is called when production logicalAndOperator is entered.
 func (s *BaseFqlParserListener) EnterLogicalAndOperator(ctx *LogicalAndOperatorContext) {}
 
diff --git a/pkg/parser/fql/fqlparser_base_visitor.go b/pkg/parser/fql/fqlparser_base_visitor.go
index a57f65ce..33832146 100644
--- a/pkg/parser/fql/fqlparser_base_visitor.go
+++ b/pkg/parser/fql/fqlparser_base_visitor.go
@@ -211,6 +211,10 @@ func (v *BaseFqlParserVisitor) VisitEqualityOperator(ctx *EqualityOperatorContex
 	return v.VisitChildren(ctx)
 }
 
+func (v *BaseFqlParserVisitor) VisitRegexpOperator(ctx *RegexpOperatorContext) interface{} {
+	return v.VisitChildren(ctx)
+}
+
 func (v *BaseFqlParserVisitor) VisitLogicalAndOperator(ctx *LogicalAndOperatorContext) interface{} {
 	return v.VisitChildren(ctx)
 }
diff --git a/pkg/parser/fql/fqlparser_listener.go b/pkg/parser/fql/fqlparser_listener.go
index 095a8789..ee4d9fb2 100644
--- a/pkg/parser/fql/fqlparser_listener.go
+++ b/pkg/parser/fql/fqlparser_listener.go
@@ -160,6 +160,9 @@ type FqlParserListener interface {
 	// EnterEqualityOperator is called when entering the equalityOperator production.
 	EnterEqualityOperator(c *EqualityOperatorContext)
 
+	// EnterRegexpOperator is called when entering the regexpOperator production.
+	EnterRegexpOperator(c *RegexpOperatorContext)
+
 	// EnterLogicalAndOperator is called when entering the logicalAndOperator production.
 	EnterLogicalAndOperator(c *LogicalAndOperatorContext)
 
@@ -328,6 +331,9 @@ type FqlParserListener interface {
 	// ExitEqualityOperator is called when exiting the equalityOperator production.
 	ExitEqualityOperator(c *EqualityOperatorContext)
 
+	// ExitRegexpOperator is called when exiting the regexpOperator production.
+	ExitRegexpOperator(c *RegexpOperatorContext)
+
 	// ExitLogicalAndOperator is called when exiting the logicalAndOperator production.
 	ExitLogicalAndOperator(c *LogicalAndOperatorContext)
 
diff --git a/pkg/parser/fql/fqlparser_visitor.go b/pkg/parser/fql/fqlparser_visitor.go
index 9c94695e..44b62c92 100644
--- a/pkg/parser/fql/fqlparser_visitor.go
+++ b/pkg/parser/fql/fqlparser_visitor.go
@@ -160,6 +160,9 @@ type FqlParserVisitor interface {
 	// Visit a parse tree produced by FqlParser#equalityOperator.
 	VisitEqualityOperator(ctx *EqualityOperatorContext) interface{}
 
+	// Visit a parse tree produced by FqlParser#regexpOperator.
+	VisitRegexpOperator(ctx *RegexpOperatorContext) interface{}
+
 	// Visit a parse tree produced by FqlParser#logicalAndOperator.
 	VisitLogicalAndOperator(ctx *LogicalAndOperatorContext) interface{}
 
diff --git a/pkg/runtime/expressions/operators/regexp.go b/pkg/runtime/expressions/operators/regexp.go
new file mode 100644
index 00000000..1ecb6160
--- /dev/null
+++ b/pkg/runtime/expressions/operators/regexp.go
@@ -0,0 +1,85 @@
+package operators
+
+import (
+	"context"
+	"github.com/MontFerret/ferret/pkg/runtime/core"
+	"github.com/MontFerret/ferret/pkg/runtime/values"
+	"regexp"
+)
+
+type (
+	RegexpOperatorType int
+	RegexpOperator     struct {
+		*baseOperator
+		opType RegexpOperatorType
+	}
+)
+
+const (
+	RegexpOperatorTypeNegative RegexpOperatorType = 0
+	RegexpOperatorTypePositive RegexpOperatorType = 1
+)
+
+var regexpOperators = map[string]RegexpOperatorType{
+	"!~": RegexpOperatorTypeNegative,
+	"=~": RegexpOperatorTypePositive,
+}
+
+func NewRegexpOperator(
+	src core.SourceMap,
+	left core.Expression,
+	right core.Expression,
+	operator string,
+) (*RegexpOperator, error) {
+	op, exists := regexpOperators[operator]
+
+	if !exists {
+		return nil, core.Error(core.ErrInvalidArgument, "operator")
+	}
+
+	return &RegexpOperator{
+		&baseOperator{
+			src,
+			left,
+			right,
+		},
+		op,
+	}, nil
+}
+
+func (operator *RegexpOperator) Type() RegexpOperatorType {
+	return operator.opType
+}
+
+func (operator *RegexpOperator) Exec(ctx context.Context, scope *core.Scope) (core.Value, error) {
+	left, err := operator.left.Exec(ctx, scope)
+
+	if err != nil {
+		return nil, err
+	}
+
+	right, err := operator.right.Exec(ctx, scope)
+
+	if err != nil {
+		return nil, err
+	}
+
+	return operator.Eval(ctx, left, right)
+}
+
+func (operator *RegexpOperator) Eval(_ context.Context, left, right core.Value) (core.Value, error) {
+	leftStr := left.String()
+	rightStr := right.String()
+
+	r, err := regexp.Compile(rightStr)
+
+	if err != nil {
+		return values.None, err
+	}
+
+	if operator.opType == RegexpOperatorTypePositive {
+		return values.NewBoolean(r.MatchString(leftStr)), nil
+	}
+
+	return values.NewBoolean(!r.MatchString(leftStr)), nil
+}