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select: Add IS (NOT) operators (#13906)

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Add `IS` and `IS NOT` as comparison operators.

This may be a bit wider than the S3 spec, but we can rather 
easily remove the forwarding.
This commit is contained in:
Klaus Post
2021-12-14 09:54:50 -08:00
committed by GitHub
parent 44a9339c0a
commit a8d4042853
3 changed files with 74 additions and 16 deletions
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2
internal/s3select/sql/parser.go
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@@ -184,7 +184,7 @@ type ConditionRHS struct {
// Compare represents the RHS of a comparison expression
type Compare struct {
Operator string `parser:"@( \"<>\" | \"<=\" | \">=\" | \"=\" | \"<\" | \">\" | \"!=\" )"`
Operator string `parser:"@( \"<>\" | \"<=\" | \">=\" | \"=\" | \"<\" | \">\" | \"!=\" | \"IS\" \"NOT\" | \"IS\")"`
Operand *Operand `parser:" @@"`
}