[SPARK-39547][SQL] V2SessionCatalog should not throw NoSuchDatabaseException in loadNamspaceMetadata#36948
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singhpk234 wants to merge 3 commits into
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[SPARK-39547][SQL] V2SessionCatalog should not throw NoSuchDatabaseException in loadNamspaceMetadata#36948singhpk234 wants to merge 3 commits into
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Can one of the admins verify this patch? |
cloud-fan
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Jun 22, 2022
huaxingao
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Jun 23, 2022
…ception in loadNamspaceMetadata
### What changes were proposed in this pull request?
This change attempts to make V2SessionCatalog return NoSuchNameSpaceException rather than NoSuchDataseException
### Why are the changes needed?
if a catalog doesn't overrides `namespaceExists` it by default uses `loadNamespaceMetadata` and in case a `db` not exists loadNamespaceMetadata throws a `NoSuchDatabaseException` which is not catched and we see failures even with `if exists` clause. One such use case we observed was in iceberg table a post test clean up was failing with `NoSuchDatabaseException` now. Also queries such as `DROP TABLE IF EXISTS {}` fails with no such db exception.
### Does this PR introduce _any_ user-facing change?
No
### How was this patch tested?
Modified the UT to match the proposed behviour
Closes #36948 from singhpk234/fix/loadNamespaceMetadata.
Authored-by: Prashant Singh <psinghvk@amazon.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
(cherry picked from commit 9513393)
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
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thanks, merging to master/3.3 |
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Thanks for the review @cloud-fan , @huaxingao ! |
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What changes were proposed in this pull request?
This change attempts to make V2SessionCatalog return NoSuchNameSpaceException rather than NoSuchDataseException
Why are the changes needed?
if a catalog doesn't overrides
namespaceExistsit by default usesloadNamespaceMetadataand in case adbnot exists loadNamespaceMetadata throws aNoSuchDatabaseExceptionwhich is not catched and we see failures even withif existsclause. One such use case we observed was in iceberg table a post test clean up was failing withNoSuchDatabaseExceptionnow. Also queries such asDROP TABLE IF EXISTS {}fails with no such db exception.Does this PR introduce any user-facing change?
No
How was this patch tested?
Modified the UT to match the proposed behviour