wangyum opened a new pull request #28056: [SPARK-31288][SQL] Reduce calls to requireDbExists and requireTableExists URL: https://github.com/apache/spark/pull/28056 ### What changes were proposed in this pull request? This PR removed some calls to `requireDbExists` and `requireTableExists` in `InMemoryCatalog` and `HiveExternalCatalog` because we has checked it in `SessionCatalog`. For e.g.: SessionCatalog.createTable checked `requireDbExists` in https://github.com/apache/spark/blob/66b4fd040e97cb6de6536a5545017278879c98fb/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/catalog/SessionCatalog.scala#L318 https://github.com/apache/spark/blob/66b4fd040e97cb6de6536a5545017278879c98fb/sql/hive/src/main/scala/org/apache/spark/sql/hive/HiveExternalCatalog.scala#L246 ### Why are the changes needed? Improve `HiveExternalCatalog` performance. ### Does this PR introduce any user-facing change? No. ### How was this patch tested? Exist test.
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