anoopj commented on code in PR #17738:
URL: https://github.com/apache/iceberg/pull/17738#discussion_r3823602379
##########
arrow/src/main/java/org/apache/iceberg/arrow/vectorized/ColumnVector.java:
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@@ -86,6 +94,10 @@ public int numNulls() {
@Override
public void close() {
+ if (arrowVector != null) {
Review Comment:
I suspect this doesn't fix the leak because the `close()` here is
unreachable during a scan. `ArrowReader` owns the batches and doesn't call
`ColumnarBatch.close()`. See the `ArrowReader` javadoc that says
> The caller should not hold onto a {@link ColumnarBatch} or try to close
them.
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