vibhatha commented on code in PR #44627:
URL: https://github.com/apache/arrow/pull/44627#discussion_r1826887494
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java/vector/src/main/java/org/apache/arrow/vector/complex/MapVector.java:
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@@ -211,23 +211,25 @@ public void splitAndTransfer(int startIndex, int length) {
startIndex,
length,
valueCount);
- final int startPoint = offsetBuffer.getInt(startIndex * OFFSET_WIDTH);
- final int sliceLength =
- offsetBuffer.getInt((startIndex + length) * OFFSET_WIDTH) -
startPoint;
to.clear();
- to.offsetBuffer = to.allocateOffsetBuffer((length + 1) * OFFSET_WIDTH);
- /* splitAndTransfer offset buffer */
- for (int i = 0; i < length + 1; i++) {
- final int relativeOffset =
- offsetBuffer.getInt((startIndex + i) * OFFSET_WIDTH) - startPoint;
- to.offsetBuffer.setInt(i * OFFSET_WIDTH, relativeOffset);
+ if (length > 0) {
Review Comment:
can we just return if length=0
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