Github user davies commented on a diff in the pull request:
https://github.com/apache/spark/pull/9203#discussion_r42692044
--- Diff:
sql/catalyst/src/main/java/org/apache/spark/sql/catalyst/expressions/codegen/UnsafeRowWriter.java
---
@@ -58,6 +58,10 @@ private void zeroOutPaddingBytes(int numBytes) {
}
}
+ public boolean isNullAt(int ordinal) {
+ return BitSetMethods.isSet(holder.buffer, startingOffset, ordinal);
--- End diff --
Yes, in UnsafeProjection, there could be multiple UnsafeRowWriter share a
single BufferHolder.
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