rm fast path for virtual cols

Author: elianddb

sql/analyzer/fix_exec_indexes.go

@@ -53,7 +53,7 @@ func assignExecIndexes(ctx *sql.Context, a *Analyzer, n sql.Node, scope *plan.Sc
 			}
 		}
 	case *plan.DeleteFrom:
-		if n.RefsSingleRel && !n.HasExplicitTargets() && scope.IsEmpty() && !n.IsProcNested {
+		if n.RefsSingleRel && !n.HasExplicitTargets() && scope.IsEmpty() && !n.IsProcNested && !n.Child.Schema().HasVirtualColumns() {
 			// joins, subqueries, triggers, and procedures preclude fast indexing
 			return offsetAssignIndexes(n), transform.NewTree, nil
 		}

sql/plan/delete.go

@@ -81,10 +81,7 @@ func (p *DeleteFrom) WithTargets(targets []sql.Node) *DeleteFrom {
 
 // GetDeleteTargets returns the sql.Nodes representing the tables from which rows should be deleted.
 func (p *DeleteFrom) GetDeleteTargets() []sql.Node {
-	if len(p.targets) > 0 {
-		return p.targets
-	}
-	return []sql.Node{p.Child}
+	return p.targets
 }
 
 // Schema implements the sql.Node interface.