Github user jiangxb1987 commented on a diff in the pull request: https://github.com/apache/spark/pull/20277#discussion_r162531441 --- Diff: sql/core/src/main/java/org/apache/spark/sql/vectorized/ArrowColumnVector.java --- @@ -53,166 +41,83 @@ public int numNulls() { @Override public void close() { if (childColumns != null) { - for (int i = 0; i < childColumns.length; i++) { - childColumns[i].close(); + for (ArrowColumnVector childColumn : childColumns) { --- End diff -- Will this be faster?
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