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29 lines
602 B
Go
29 lines
602 B
Go
package clauses
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import (
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"context"
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"github.com/MontFerret/ferret/pkg/runtime/collections"
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"github.com/MontFerret/ferret/pkg/runtime/core"
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)
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type DistinctClause struct {
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*baseClause
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}
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func NewDistinctClause(
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src core.SourceMap,
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dataSource collections.IterableExpression,
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) *DistinctClause {
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return &DistinctClause{&baseClause{src, dataSource}}
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}
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func (clause *DistinctClause) Iterate(ctx context.Context, scope *core.Scope) (collections.Iterator, error) {
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src, err := clause.dataSource.Iterate(ctx, scope)
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if err != nil {
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return nil, err
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}
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return collections.NewUniqueIterator(src)
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}
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