diff --git a/pkg/sql/colexec/and_or_projection_tmpl.go b/pkg/sql/colexec/and_or_projection_tmpl.go
index 2f9c5d574018..f1cbad115a64 100644
--- a/pkg/sql/colexec/and_or_projection_tmpl.go
+++ b/pkg/sql/colexec/and_or_projection_tmpl.go
@@ -141,13 +141,14 @@ func (o *_OP_LOWERProjOp) Next(ctx context.Context) coldata.Batch {
 	var curIdx uint16
 	if usesSel {
 		sel := batch.Selection()
+		origSel := o.origSel[:origLen]
 		if leftCol.MaybeHasNulls() {
 			leftNulls := leftCol.Nulls()
-			for _, i := range o.origSel[:origLen] {
+			for _, i := range origSel {
 				_ADD_TUPLE_FOR_RIGHT(true)
 			}
 		} else {
-			for _, i := range o.origSel {
+			for _, i := range origSel {
 				_ADD_TUPLE_FOR_RIGHT(false)
 			}
 		}