viirya commented on a change in pull request #28915:
URL: https://github.com/apache/spark/pull/28915#discussion_r444661658
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File path:
sql/catalyst/src/main/java/org/apache/spark/sql/vectorized/ArrowColumnVector.java
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@@ -458,10 +457,8 @@ final boolean isNullAt(int rowId) {
@Override
final ColumnarArray getArray(int rowId) {
- ArrowBuf offsets = accessor.getOffsetBuffer();
- int index = rowId * ListVector.OFFSET_WIDTH;
- int start = offsets.getInt(index);
- int end = offsets.getInt(index + ListVector.OFFSET_WIDTH);
+ int start = accessor.getElementStartIndex(rowId);
Review comment:
for references:
https://github.com/apache/arrow/blob/master/java/vector/src/main/java/org/apache/arrow/vector/complex/ListVector.java#L863-L871
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