[GitHub] [pinot] harold-kfuse commented on a change in pull request #8350: Fix setting of metrics compression type in RealtimeSegmentConverter

[GitBox <gi...@apache.org>]

harold-kfuse commented on a change in pull request #8350:
URL: https://github.com/apache/pinot/pull/8350#discussion_r826382774



##########
File path: pinot-segment-local/src/main/java/org/apache/pinot/segment/local/realtime/converter/RealtimeSegmentConverter.java
##########
@@ -94,14 +93,14 @@ public void build(@Nullable SegmentVersion segmentVersion, ServerMetrics serverM
     }
     if (_noDictionaryColumns != null) {
       genConfig.setRawIndexCreationColumns(_noDictionaryColumns);
-      Map<String, ChunkCompressionType> columnToCompressionType = new HashMap<>();
       for (String column : _noDictionaryColumns) {
         FieldSpec fieldSpec = _dataSchema.getFieldSpecFor(column);
+        // Compression type is already configured in the constructor of genConfig.
+        // Only update metrics compression type.
         if (fieldSpec.getFieldType().equals(FieldSpec.FieldType.METRIC)) {
-          columnToCompressionType.put(column, ChunkCompressionType.PASS_THROUGH);
+          genConfig.setRawIndexCompressionType(column, ChunkCompressionType.PASS_THROUGH);
         }
       }

Review comment:
       Thanks. You mean I can delete this whole block? (line 96-103)?




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