HIVE-28537: Iceberg: Compaction: Allow only partition columns in the WHERE clause #5483
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difin
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ql/src/java/org/apache/hadoop/hive/ql/optimizer/ppr/PartitionPruner.java
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ql/src/java/org/apache/hadoop/hive/ql/optimizer/ppr/PartitionPruner.java
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ql/src/java/org/apache/hadoop/hive/ql/ddl/table/storage/compact/AlterTableCompactAnalyzer.java
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+1, Looks good to me. Added a few minor formatting comments. |
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Change-Id: Ic85efd70599413cdb96073c6cb50690fbc1c11b0
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Change-Id: Ic85efd70599413cdb96073c6cb50690fbc1c11b0
What changes were proposed in this pull request?
Limiting the columns in where clause in compaction to partition columns.
Why are the changes needed?
Currently Hive Iceberg compaction supports any columns in the WHERE clause predicate. However, compaction happens only on partition level. Performance can be improved if the columns in WHERE clause predicate will be limited to partition columns.
Does this PR introduce any user-facing change?
Yes, user will get an exception if uses non partition columns in alter table compaction query.
Is the change a dependency upgrade?
No.
How was this patch tested?
With qtest.