gortiz commented on code in PR #13303:
URL: https://github.com/apache/pinot/pull/13303#discussion_r1670142982


##########
pinot-common/src/main/java/org/apache/pinot/common/datablock/BaseDataBlock.java:
##########
@@ -290,84 +232,117 @@ public ByteArray getBytes(int rowId, int colId) {
 
   @Override
   public int[] getIntArray(int rowId, int colId) {
-    int length = positionOffsetInVariableBufferAndGetLength(rowId, colId);
-    int[] ints = new int[length];
-    for (int i = 0; i < length; i++) {
-      ints[i] = _variableSizeData.getInt();
+    int offsetInFixed = getOffsetInFixedBuffer(rowId, colId);
+    int size = _fixedSizeData.getInt(offsetInFixed + 4);

Review Comment:
   It is the size of the array.
   
   For the context, the older `positionOffsetInVariableBufferAndGetLength` 
(which was equal in columnar and row versions) was:
   
   ```
     @Override
     protected int positionOffsetInVariableBufferAndGetLength(int rowId, int 
colId) {
       int offset = getOffsetInFixedBuffer(rowId, colId);
       _variableSizeData.position(_fixedSizeData.getInt(offset));
       return _fixedSizeData.getInt(offset + 4);
     }
   ```



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