siddharthteotia commented on a change in pull request #6876:
URL: https://github.com/apache/incubator-pinot/pull/6876#discussion_r626128003



##########
File path: 
pinot-segment-spi/src/main/java/org/apache/pinot/segment/spi/creator/SegmentGeneratorConfig.java
##########
@@ -262,6 +267,19 @@ private void 
extractH3IndexConfigsFromTableConfig(TableConfig tableConfig) {
     }
   }
 
+  private void 
extractNoDictionaryColumnCompressionCodecConfigsFromTableConfig(TableConfig 
tableConfig) {
+    List<String> rawIndexColumns = new ArrayList<>();
+    List<FieldConfig> fieldConfigList = tableConfig.getFieldConfigList();
+    if (fieldConfigList != null) {
+      for (FieldConfig fieldConfig : fieldConfigList) {
+        if (fieldConfig.getEncodingType() == FieldConfig.EncodingType.RAW && 
fieldConfig.getNoDictionaryColumnCompressorCodec() != null) {
+          rawIndexColumns.add(fieldConfig.getName());
+        }
+      }
+    }
+    setRawIndexColumnCompressionType(tableConfig.getIndexingConfig(), 
rawIndexColumns);

Review comment:
       I think we should not use the old method here. Let it be there. Just 
remove the call to it at line 280
   
   Instead, we can probably do the following. Wdyt ?
   
   `_rawIndexCreationColumns.add(fieldConfig.getName())` at line 276
   
   `_rawIndexCompressionType.put(fieldConfig.getName(), 
ChunkCompressionType.valueOf(fieldConfig.getNoDictionaryColumnCompressorCodec())`




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