LuciferYang opened a new pull request, #56390:
URL: https://github.com/apache/spark/pull/56390
### What changes were proposed in this pull request?
This PR updates `HiveClientImpl.getTablesByName` to preserve Spark's
existing behavior when Hive 4.2 throws `NoSuchObjectException` for missing
table names in a batch lookup.
On that specific exception, Spark falls back to single-table lookups and
returns only the tables that exist. Other metastore errors continue to be
reported through the existing `UNABLE_TO_FETCH_HIVE_TABLES` path.
### Why are the changes needed?
This is a follow-up for SPARK-57263. Hive 4.2 changed the effective client
path for `getTableObjectsByName`: in the default catalog path it may call
`getTable` for each requested table name, so a missing table can fail the whole
batch.
Spark's `getTablesByName` contract is to return existing tables and ignore
missing names. The fallback keeps that contract while limiting the
compatibility handling to the missing-table case.
### Does this PR introduce _any_ user-facing change?
No.
### How was this patch tested?
- `git diff --check`
- GitHub Actions on LuciferYang/spark run 27182854479:
- `Run / Build modules: hive - other tests`: success
- `Run / Build modules: hive - slow tests`: success
- `Run / Build modules: api, catalyst, hive-thriftserver`: success
### Was this patch authored or co-authored using generative AI tooling?
Generated-by: Codex (GPT-5)
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