somandal commented on code in PR #9333:
URL: https://github.com/apache/pinot/pull/9333#discussion_r966202586


##########
pinot-segment-local/src/main/java/org/apache/pinot/segment/local/segment/creator/impl/SegmentColumnarIndexCreator.java:
##########
@@ -196,6 +204,15 @@ public void init(SegmentGeneratorConfig 
segmentCreationSpec, SegmentIndexCreatio
       Preconditions.checkState(dictEnabledColumn || 
!invertedIndexColumns.contains(columnName),
           "Cannot create inverted index for raw index column: %s", columnName);
 
+      boolean forwardIndexDisabled = 
forwardIndexDisabledColumns.contains(columnName);
+      if (forwardIndexDisabled) {
+        Preconditions.checkState(dictEnabledColumn && 
invertedIndexColumns.contains(columnName)
+            && !columnIndexCreationInfo.isSorted() && 
(!rangeIndexColumns.contains(columnName)
+                || rangeIndexVersion == BitSlicedRangeIndexCreator.VERSION), 
String.format("Cannot disable forward "
+            + "index for column: %s without dictionary and inverted index or 
which is sorted or which has range "
+            + "index with version < 2", columnName));

Review Comment:
   good point, done!
   I have addressed all comments, but will update the PR after I add some 
multi-value query tests



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