Github user cloud-fan commented on a diff in the pull request:
https://github.com/apache/spark/pull/13909#discussion_r93792263
--- Diff:
sql/catalyst/src/main/java/org/apache/spark/sql/catalyst/expressions/UnsafeArrayData.java
---
@@ -287,6 +287,57 @@ public UnsafeMapData getMap(int ordinal) {
return map;
}
+ @Override
+ public void update(int ordinal, Object value) { throw new
UnsupportedOperationException(); }
+
+ public void setNullAt(int ordinal) {
+ assertIndexIsValid(ordinal);
+ BitSetMethods.set(baseObject, baseOffset + 8, ordinal);
+
+ /* we assume the corrresponding column was already 0 */
--- End diff --
`...was already 0 or will be set to 0 later by the caller side`
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