Github user hvanhovell commented on a diff in the pull request:
https://github.com/apache/spark/pull/20850#discussion_r175407178
--- Diff:
sql/catalyst/src/main/java/org/apache/spark/sql/catalyst/expressions/codegen/UnsafeRowWriter.java
---
@@ -40,29 +37,45 @@
*/
public final class UnsafeRowWriter extends UnsafeWriter {
- private final BufferHolder holder;
- // The offset of the global buffer where we start to write this row.
- private int startingOffset;
+ private final UnsafeRow row;
+
private final int nullBitsSize;
private final int fixedSize;
- public UnsafeRowWriter(BufferHolder holder, int numFields) {
- this.holder = holder;
+ public UnsafeRowWriter(UnsafeRow row, int initialBufferSize) {
--- End diff --
Do we really need two `UnsafeRow` constructors?
For the the top level row writer I also think it might be nice to create
row internally, and just have a constructor that takes a numFields and
(optionally) size argument.
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