JeonDaehong commented on code in PR #18027:
URL: https://github.com/apache/iceberg/pull/18027#discussion_r4005496711
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spark/v4.2/spark/src/main/java/org/apache/iceberg/spark/data/vectorized/ColumnarBatchUtil.java:
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@@ -83,6 +91,27 @@ public static Pair<int[], Integer> buildRowIdMapping(
return liveRowId == batchSize ? null : Pair.of(rowIdMapping, liveRowId);
}
+ // builds the mapping from the deleted positions in the batch range, without
probing per row
+ private static Pair<int[], Integer> buildRowIdMapping(
+ PositionDeleteIndex deletedPositions,
+ DeleteFilter<InternalRow> deletes,
+ long rowStartPosInBatch,
+ int batchSize) {
+ RowIdMappingBuilder builder = new RowIdMappingBuilder(rowStartPosInBatch,
batchSize);
Review Comment:
Done. The fast path now returns null right away when the index is empty,
before touching the range.
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