Commits on Dec 7, 2020

1. [SPARK-33670][SQL] Verify the partition provider is Hive in v1 SHOW T… …

   …ABLE EXTENDED
   
   Invoke the check `DDLUtils.verifyPartitionProviderIsHive()` from V1 implementation of `SHOW TABLE EXTENDED` when partition specs are specified.
   
   This PR is some kind of follow up apache#16373 and apache#15515.
   
   To output an user friendly error with recommendation like
   **"
   ... partition metadata is not stored in the Hive metastore. To import this information into the metastore, run `msck repair table tableName`
   "**
   instead of silently output an empty result.
   
   Yes.
   
   By running the affected test suites, in particular:
   ```
   $ build/sbt -Phive-2.3 -Phive-thriftserver "hive/test:testOnly *PartitionProviderCompatibilitySuite"
   ```
   
   Closes apache#30618 from MaxGekk/show-table-extended-verifyPartitionProviderIsHive.
   
   Authored-by: Max Gekk <max.gekk@gmail.com>
   Signed-off-by: HyukjinKwon <gurwls223@apache.org>
   (cherry picked from commit 29096a8)
   Signed-off-by: Max Gekk <max.gekk@gmail.com>

   

   MaxGekk committed Dec 7, 2020
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