kasakrisz commented on code in PR #5781:
URL: https://github.com/apache/hive/pull/5781#discussion_r2074956837
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iceberg/iceberg-handler/src/test/queries/positive/merge_with_null_check_on_joining_col.q:
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@@ -0,0 +1,24 @@
+
+create table target(a int, b int, c int) stored by iceberg
tblproperties('format-version'='2', 'write.merge.mode'='copy-on-write');
+create table source(a int, b int, c int) stored by iceberg
tblproperties('format-version'='2', 'write.merge.mode'='copy-on-write');
Review Comment:
In case of Iceberg we support two types of delete implementations:
* copy on write
* merge on read
In case of ACID only the latter exists.
Both requires different strategies to rewrite the delete/update/merge
statements.
Since the bug affects only the copy-on-write implementation, it impacts only
Iceberg tables.
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