wankunde opened a new pull request, #38495:
URL: https://github.com/apache/spark/pull/38495
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### What changes were proposed in this pull request?
Update hive table stats without convert from HiveTable -> CatalogTable ->
HiveTable .
`HiveExternalCatalog.alterTableStats()` will convert a raw HiveTable to
CatalogTable which will store schema as lowercase and keep bucket columns as
they are.
`HiveClientImpl.alterTable()` will throw `Bucket columns V1 is not part of
the table columns` exception when re-convert the CatalogTable to a HiveTable
### Why are the changes needed?
Bug fix, refer to
https://github.com/apache/spark/pull/32675#discussion_r657610011
### Does this PR introduce _any_ user-facing change?
No
### How was this patch tested?
Update exists UT
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