not neccessary to do anymore

Signed-off-by: Andres Taylor <andres@planetscale.com>
vitessio · Nov 27, 2020 · 8a71b7c · 8a71b7c
1 parent 3f9e8aa
commit 8a71b7c
Showing 1 changed file with 1 addition and 6 deletions.
diff --git a/go/vt/sqlparser/expression_rewriting.go b/go/vt/sqlparser/expression_rewriting.go
@@ -167,12 +167,7 @@ func (er *expressionRewriter) funcRewrite(cursor *Cursor, node *FuncExpr) {
 
 func (er *expressionRewriter) unnestSubQueries(cursor *Cursor, subquery *Subquery) {
 	sel, isSimpleSelect := subquery.Select.(*Select)
-	// Today, subqueries and derived tables use the same AST struct,
-	// so we have to check what the parent is so we don't accidentally
-	// rewrite a FROM clause instead of an expression
-	_, isDerivedTable := cursor.Parent().(*AliasedTableExpr)
-
-	if isDerivedTable || !isSimpleSelect {
+	if !isSimpleSelect {
 		return
 	}