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36 lines
1.2 KiB
Go
36 lines
1.2 KiB
Go
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package pgx
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// init
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const createSchema = "CREATE SCHEMA IF NOT EXISTS %s"
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const createTable = `CREATE TABLE IF NOT EXISTS %s.%s
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(
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key text primary key,
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value bytea,
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metadata JSONB,
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expiry timestamp with time zone
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)`
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const createMDIndex = `create index if not exists idx_md_%s ON %s.%s USING GIN (metadata)`
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const createExpiryIndex = `create index if not exists idx_expiry_%s on %s.%s (expiry) where (expiry IS NOT NULL)`
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// base queries
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const (
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list = "SELECT key FROM %s.%s WHERE key LIKE $1 and (expiry < now() or expiry isnull)"
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readOne = "SELECT key, value, metadata, expiry FROM %s.%s WHERE key = $1 and (expiry < now() or expiry isnull)"
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readMany = "SELECT key, value, metadata, expiry FROM %s.%s WHERE key LIKE $1 and (expiry < now() or expiry isnull)"
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write = `INSERT INTO %s.%s(key, value, metadata, expiry)
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VALUES ($1, $2::bytea, $3, $4)
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ON CONFLICT (key)
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DO UPDATE
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SET value = EXCLUDED.value, metadata = EXCLUDED.metadata, expiry = EXCLUDED.expiry`
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deleteRecord = "DELETE FROM %s.%s WHERE key = $1"
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deleteExpired = "DELETE FROM %s.%s WHERE expiry < now()"
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)
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// suffixes
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const (
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limit = " LIMIT $2 OFFSET $3"
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asc = " ORDER BY key ASC"
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desc = " ORDER BY key DESC"
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)
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