jiangxb1987 commented on a change in pull request #28195:
[SPARK-31425][SQL][CORE]
UnsafeKVExternalSorter/VariableLengthRowBasedKeyValueBatch should also respect
UnsafeAlignedOffset
URL: https://github.com/apache/spark/pull/28195#discussion_r408610853
##########
File path:
sql/core/src/main/java/org/apache/spark/sql/execution/UnsafeKVExternalSorter.java
##########
@@ -141,9 +142,10 @@ public UnsafeKVExternalSorter(
// Get encoded memory address
// baseObject + baseOffset point to the beginning of the key data in
the map, but that
- // the KV-pair's length data is stored in the word immediately before
that address
+ // the KV-pair's length data is stored at 2 * uaoSize bytes
immediately before that address
Review comment:
sorry I don't get it here why the address is related to uaoSize?
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