added comment

opensearch-project · Dec 8, 2024 · 447952c · 447952c
1 parent a9e9f93
commit 447952c
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/ppl-spark-integration/src/main/java/org/opensearch/sql/ppl/CatalystQueryPlanVisitor.java b/ppl-spark-integration/src/main/java/org/opensearch/sql/ppl/CatalystQueryPlanVisitor.java
@@ -541,6 +541,8 @@ public LogicalPlan visitEval(Eval node, CatalystPlanContext context) {
         List<UnresolvedExpression> aliases = new ArrayList<>();
         List<Node> expressions = node.getExpressionList();
 
+
+        // Geoip function modifies logical plan and is treated as QueryPlanVisitor instead of ExpressionVisitor
         for (Node expr : expressions) {
             if (expr instanceof Let) {
                 Let let = (Let) expr;