HIVE-28765: Iceberg: Incorrect partition statistics on time travel + partition evolution #5748
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okumin
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Apr 12, 2025
| @@ -2149,12 +2149,16 @@ public List<Partition> getPartitions(org.apache.hadoop.hive.ql.metadata.Table hm | |||
| } | |||
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| public boolean isPartitioned(org.apache.hadoop.hive.ql.metadata.Table hmsTable) { | |||
| if ((hmsTable.getAsOfVersion() != null || hmsTable.getAsOfTimestamp() != null) && | |||
| hasUndergonePartitionEvolution(hmsTable) || | |||
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I used IcebergTableUtil.getTableSnapshot to avoid duplicate knowledge of the snapshot configurations. I can move it back to the original style if we prefer it.
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What changes were proposed in this pull request?
https://issues.apache.org/jira/browse/HIVE-28765
We use not partition stats but table stats when we access a complicated table with tagging or branching.
Why are the changes needed?
We would like to improve the query plan for a time-travel read with tagging and branching.
Does this PR introduce any user-facing change?
No
Is the change a dependency upgrade?
No
How was this patch tested?
Updated an existing query file.