swaminathanmanish commented on code in PR #12115:
URL: https://github.com/apache/pinot/pull/12115#discussion_r1423195561


##########
pinot-core/src/main/java/org/apache/pinot/core/segment/processing/partitioner/TableConfigPartitioner.java:
##########
@@ -41,6 +43,16 @@ public TableConfigPartitioner(String columnName, 
ColumnPartitionConfig columnPar
 
   @Override
   public String getPartition(GenericRow genericRow) {
-    return 
String.valueOf(_partitionFunction.getPartition(genericRow.getValue(_column)));
+    return 
String.valueOf(_partitionFunction.getPartition(convertToString(genericRow.getValue(_column))));
+  }
+
+  private static String convertToString(Object value) {

Review Comment:
   Is there a way to catch unsupported types here to ensure that for new types, 
we do the string conversion correctly ?  Same for the logic in 
**MutableSegmentImpl.java** (similar to what you have in getStringValue utility)



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