parser: support the 'alter table xx cache' and 'alter table xx nocach…

…e' (#28922)
pingcap · Oct 21, 2021 · 549fac6 · 549fac6
1 parent 6d24f8c
commit 549fac6
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Showing 4 changed files with 4,032 additions and 3,994 deletions.
diff --git a/parser/ast/ddl.go b/parser/ast/ddl.go
@@ -2463,6 +2463,8 @@ const (
 	AlterTableAddStatistics
 	AlterTableDropStatistics
 	AlterTableAttributes
+	AlterTableCache
+	AlterTableNoCache
 )
 
 // LockType is the type for AlterTableSpec.
@@ -3094,7 +3096,10 @@ func (n *AlterTableSpec) Restore(ctx *format.RestoreCtx) error {
 		if err := spec.Restore(ctx); err != nil {
 			return errors.Annotatef(err, "An error occurred while restore AlterTableSpec.AttributesSpec")
 		}
-
+	case AlterTableCache:
+		ctx.WriteKeyWord("CACHE")
+	case AlterTableNoCache:
+		ctx.WriteKeyWord("NOCACHE")
 	default:
 		// TODO: not support
 		ctx.WritePlainf(" /* AlterTableType(%d) is not supported */ ", n.Tp)