parser: implement Restore for DeleteTableList

pingcap · Dec 23, 2018 · 0dbc11c · 0dbc11c
1 parent 651ad71
commit 0dbc11c
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Showing 2 changed files with 19 additions and 1 deletion.
diff --git a/ast/dml.go b/ast/dml.go
@@ -234,7 +234,15 @@ type DeleteTableList struct {
 
 // Restore implements Node interface.
 func (n *DeleteTableList) Restore(ctx *RestoreCtx) error {
-	return errors.New("Not implemented")
+    for i, t := range n.Tables {
+		if err := t.Restore(ctx); err != nil {
+			return errors.Annotate(err, "An error occurred while restore DeleteTableList.Tablename")
+		}
+		if i != len(n.Tables) - 1 {
+			ctx.WritePlain(",")
+		}
+	}
+	return nil
 }
 
 // Accept implements Node Accept interface.

diff --git a/ast/dml_test.go b/ast/dml_test.go
@@ -139,3 +139,13 @@ func (tc *testDMLSuite) TestLimitRestore(c *C) {
 	RunNodeRestoreTest(c, testCases, "SELECT 1 %s", extractNodeFunc)
 }
 
+func (tc *testDMLSuite) TestDeleteTableListRestore(c *C) {
+	testCases := []NodeRestoreTestCase{
+		{"t1,t2", "`t1`,`t2`"},
+	}
+	extractNodeFunc := func(node Node) Node {
+		return node.(*DeleteStmt).Tables
+	}
+	RunNodeRestoreTest(c, testCases, "DELETE %s FROM t1 INNER JOIN t2 INNER JOIN t3 WHERE t1.id=t2.id AND t2.id=t3.id;", extractNodeFunc)
+	RunNodeRestoreTest(c, testCases, "DELETE FROM %s USING t1 INNER JOIN t2 INNER JOIN t3 WHERE t1.id=t2.id AND t2.id=t3.id;", extractNodeFunc)
+}