Github user viirya commented on a diff in the pull request: https://github.com/apache/spark/pull/20471#discussion_r165288359 --- Diff: sql/core/src/main/java/org/apache/spark/sql/execution/vectorized/MutableColumnarRow.java --- @@ -162,8 +162,9 @@ public ColumnarArray getArray(int ordinal) { } @Override - public MapData getMap(int ordinal) { - throw new UnsupportedOperationException(); + public ColumnarMap getMap(int ordinal) { + if (columns[ordinal].isNullAt(rowId)) return null; --- End diff -- I will remove this null check in #20455 later after this gets merged.
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