[GitHub] [spark] huleilei commented on a diff in pull request #38007: [SPARK-40566][SQL] Add showIndex function

[GitBox <gi...@apache.org>]

huleilei commented on code in PR #38007:
URL: https://github.com/apache/spark/pull/38007#discussion_r980919285


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sql/catalyst/src/main/antlr4/org/apache/spark/sql/catalyst/parser/SqlBaseParser.g4:
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@@ -216,6 +216,7 @@ statement
         LEFT_PAREN columns=multipartIdentifierPropertyList RIGHT_PAREN
         (OPTIONS options=propertyList)?                                #createIndex
     | DROP INDEX (IF EXISTS)? identifier ON TABLE? multipartIdentifier #dropIndex
+    | SHOW INDEX ON TABLE? multipartIdentifier                         #showIndex

Review Comment:
   OK. I think the `FROM` and `ON` should be supported:
   `SHOW {INDEX | INDEXES}
       {FROM | ON} tbl_name`.  



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