bziobrowski commented on code in PR #15591:
URL: https://github.com/apache/pinot/pull/15591#discussion_r2086613730
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pinot-segment-spi/src/main/java/org/apache/pinot/segment/spi/index/metadata/ColumnMetadataImpl.java:
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@@ -355,7 +415,9 @@ public static class Builder {
private PartitionFunction _partitionFunction;
private Set<Integer> _partitions;
private boolean _autoGenerated;
- private Map<IndexType<?, ?, ?>, Long> _indexSizeMap = new HashMap<>();
+
+ // use non-default size to save space for most columns
+ LongArrayList _indexSizeList = new LongArrayList(2);
Review Comment:
What do you mean? Should it be done in build() method or by explicit call
outside builder ?
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