Add optional ignore to delete statement

go/vt/sqlparser/ast.go

@@ -148,6 +148,7 @@ type (
  // Delete represents a DELETE statement.
  // If you add fields here, consider adding them to calls to validateUnshardedRoute.
  Delete struct {
+ Ignore Ignore
  Comments Comments
  Targets TableNames
  TableExprs TableExprs
@@ -1041,6 +1042,9 @@ func (node *Update) Format(buf *TrackedBuffer) {
 // Format formats the node.
 func (node *Delete) Format(buf *TrackedBuffer) {
  buf.astPrintf(node, "delete %v", node.Comments)
+ if node.Ignore {
+ buf.WriteString("ignore ")
+ }
  if node.Targets != nil {
  buf.astPrintf(node, "%v ", node.Targets)
  }

go/vt/sqlparser/parse_test.go

@@ -782,6 +782,12 @@ var (
  input: "delete a from a join b on a.id = b.id where b.name = 'test'",
  }, {
  input: "delete a, b from a, b where a.id = b.id and b.name = 'test'",
+ }, {
+ input: "delete /* simple */ ignore from a",
+ }, {
+ input: "delete ignore from a",
+ }, {
+ input: "delete /* limit */ ignore from a",
  }, {
  input: "delete from a1, a2 using t1 as a1 inner join t2 as a2 where a1.id=a2.id",
  output: "delete a1, a2 from t1 as a1 join t2 as a2 where a1.id = a2.id",