expression: refactor grouping function computation and update related tipb (#44436)

close pingcap/tidb#44437
2023-06-07 18:19:41 +08:00
parent 8b67cea5e1
commit aedbcd085b
8 changed files with 106 additions and 63 deletions
--- a/parser/ast/functions.go
+++ b/parser/ast/functions.go
@ -302,6 +302,7 @@ const (
 	TiDBRowChecksum = "tidb_row_checksum"
 	GetLock         = "get_lock"
 	ReleaseLock     = "release_lock"
+	Grouping        = "grouping"

 	// encryption and compression functions
 	AesDecrypt               = "aes_decrypt"