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### What changes were proposed in this pull request? Previously, user can issue `SHOW TABLES` to get info of both tables and views. This PR (SPARK-31113) implements `SHOW VIEWS` SQL command similar to HIVE to get views only.(https://cwiki.apache.org/confluence/display/Hive/LanguageManual+DDL#LanguageManualDDL-ShowViews) **Hive** -- Only show view names ``` hive> SHOW VIEWS; OK view_1 view_2 ... ``` **Spark(Hive-Compatible)** -- Only show view names, used in tests and `SparkSQLDriver` for CLI applications ``` SHOW VIEWS IN showdb; view_1 view_2 ... ``` **Spark** -- Show more information database/viewName/isTemporary ``` spark-sql> SHOW VIEWS; userdb view_1 false userdb view_2 false ... ``` ### Why are the changes needed? `SHOW VIEWS` command provides better granularity to only get information of views. ### Does this PR introduce any user-facing change? Add new `SHOW VIEWS` SQL command ### How was this patch tested? Add new test `show-views.sql` and pass existing tests Closes #27897 from Eric5553/ShowViews. Authored-by: Eric Wu <492960551@qq.com> Signed-off-by: Dongjoon Hyun <dongjoon@apache.org> |
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| menu-migration.yaml | ||
| menu-ml.yaml | ||
| menu-mllib.yaml | ||
| menu-sql.yaml | ||