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### What changes were proposed in this pull request? 1. Remove old statement `ShowTableStatement` 2. Introduce new command `ShowTableExtended` for `SHOW TABLE EXTENDED`. This PR is the first step of new V2 implementation of `SHOW TABLE EXTENDED`, see SPARK-33393. ### Why are the changes needed? This is a part of effort to make the relation lookup behavior consistent: SPARK-29900. ### Does this PR introduce _any_ user-facing change? The changes should not affect V1 tables. For V2, Spark outputs the error: ``` SHOW TABLE EXTENDED is not supported for v2 tables. ``` ### How was this patch tested? By running `SHOW TABLE EXTENDED` tests: ``` $ build/sbt -Phive-2.3 -Phive-thriftserver "test:testOnly *ShowTablesSuite" ``` Closes #30645 from MaxGekk/show-table-extended-statement. Authored-by: Max Gekk <max.gekk@gmail.com> Signed-off-by: Wenchen Fan <wenchen@databricks.com> |
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