how about this?

Author: James Cor

sql/analyzer/fix_exec_indexes.go

@@ -32,6 +32,7 @@ func assignExecIndexes(ctx *sql.Context, a *Analyzer, n sql.Node, scope *plan.Sc
 	if !scope.IsEmpty() {
 		// triggers
 		s.triggerScope = true
+		s.insertSourceScope = scope.InInsertSource
 		s.addSchema(scope.Schema())
 		s = s.push()
 	}
@@ -605,8 +606,6 @@ func (s *idxScope) visitSelf(n sql.Node) error {
 			case *plan.GroupBy, *plan.Window:
 				if s.inTrigger() && s.inInsertSource() {
 					for _, e := range proj.Expressions() {
-						// default nodes can't see lateral join nodes, unless we're in lateral
-						// join and lateral scopes are promoted to parent status
 						s.expressions = append(s.expressions, fixExprToScope(e, s.childScopes...))
 					}
 					return nil
@@ -772,10 +771,7 @@ func fixExprToScope(e sql.Expression, scopes ...*idxScope) sql.Expression {
 			//  don't have the destination schema, and column references in default values are determined in the build phase)
 
 			idx, _ := newScope.getIdxId(e.Id(), e.String())
-			if e.String() == "ref_tbl.id" {
-				print()
-			}
-			if e.String() == "new.id" {
+			if e.String() == "modeldisambig.id_modelinfo" && e.Index() == 1 {
 				print()
 			}
 			if idx >= 0 {

sql/analyzer/inserts.go

@@ -67,6 +67,7 @@ func resolveInsertRows(ctx *sql.Context, a *Analyzer, n sql.Node, scope *plan.Sc
 			//		scope = &plan.Scope{}
 			//	}
 			//}
+			scope.InInsertSource = true // TODO: use a setter?
 			source, _, err = a.analyzeWithSelector(ctx, insert.Source, scope, SelectAllBatches, newInsertSourceSelector(sel), qFlags)
 			if err != nil {
 				return nil, transform.SameTree, err

sql/plan/scope.go

@@ -44,6 +44,8 @@ type Scope struct {
 	inLateralJoin bool
 	joinSiblings  []sql.Node
 	JoinTrees     []string
+
+	InInsertSource bool
 }
 
 func (s *Scope) SetJoin(b bool) {