[parser] Add begin lock syntax for pessimistic transaction. (pingcap#307

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xhebox · Oct 8, 2021 · ebbce71 · ebbce71
1 parent f9a3407
commit ebbce71
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Showing 3 changed files with 2,479 additions and 2,464 deletions.
diff --git a/parser/ast/misc.go b/parser/ast/misc.go
@@ -365,6 +365,7 @@ func (n *ExecuteStmt) Accept(v Visitor) (Node, bool) {
 // See https://dev.mysql.com/doc/refman/5.7/en/commit.html
 type BeginStmt struct {
 	stmtNode
+	Pessimistic bool
 }
 
 // Restore implements Node interface.