gortiz commented on code in PR #14690:
URL: https://github.com/apache/pinot/pull/14690#discussion_r1899422869


##########
pinot-query-runtime/src/main/java/org/apache/pinot/query/runtime/plan/server/ServerPlanRequestVisitor.java:
##########
@@ -240,4 +250,14 @@ private boolean visit(PlanNode node, 
ServerPlanRequestContext context) {
     node.visit(this, context);
     return context.getLeafStageBoundaryNode() == null;
   }
+
+  private void applyTimestampIndex(Expression expression, PinotQuery 
pinotQuery) {
+    RequestUtils.applyTimestampIndex(expression, pinotQuery);
+    Function functionCall = expression.getFunctionCall();
+    if (expression.isSetFunctionCall()) {
+      for (Expression operand : functionCall.getOperands()) {
+        applyTimestampIndex(operand, pinotQuery);
+      }
+    }
+  }

Review Comment:
   Yes, it is a bit strange. That is the way V1 does it. I don't completely 
understand why we do that on brokers instead of doing that on servers depending 
on whether we have the column + index or not, the same way we do that with 
other indexes.



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