[SPARK-44473][SQL] [BUG] Overwriting the same partition of a partitioned table multiple times with empty data yields non-idempotent results#46699
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hive behavior: After this pull request is merged, it will be consistent with the hive behavior |
ychris78
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Can anyone give some advice? |
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We're closing this PR because it hasn't been updated in a while. This isn't a judgement on the merit of the PR in any way. It's just a way of keeping the PR queue manageable. |
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What changes were proposed in this pull request?
Through code tracking, I found that the folder corresponding to the partition on HDFS is generated by the 'AlterTableAddPartitionCommand' command, and whether the command is executed depends on whether the partition already exists in the metastore, which is the root cause of the non-idempotence. So we need to drop the updated part of the partitions from the metastore to initialize its state.
Why are the changes needed?
For fix issue #SPARK-44473
Does this PR introduce any user-facing change?
No
How was this patch tested?
manually tested
Was this patch authored or co-authored using generative AI tooling?
No