support default keyword for attribute

Signed-off-by: Ryan Leung <rleungx@gmail.com>
pingcap · Jul 22, 2021 · a8bb32c · a8bb32c
1 parent 71ce654
commit a8bb32c
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Showing 4 changed files with 4,084 additions and 4,030 deletions.
diff --git a/ast/ddl.go b/ast/ddl.go
@@ -3694,11 +3694,16 @@ type AttributesSpec struct {
 	node
 
 	Attributes string
+	Default    bool
 }
 
 func (n *AttributesSpec) Restore(ctx *format.RestoreCtx) error {
 	ctx.WriteKeyWord("ATTRIBUTES")
 	ctx.WritePlain("=")
+	if n.Default {
+		ctx.WriteKeyWord("DEFAULT")
+		return nil
+	}
 	ctx.WriteString(n.Attributes)
 	return nil
 }