[GitHub] [spark] cloud-fan commented on a change in pull request #34148: [SPARK-36895][SQL] Add Create Index syntax support

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

cloud-fan commented on a change in pull request #34148:
URL: https://github.com/apache/spark/pull/34148#discussion_r721874980



##########
File path: sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/parser/AstBuilder.scala
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@@ -4492,6 +4492,35 @@ class AstBuilder extends SqlBaseBaseVisitor[AnyRef] with SQLConfHelper with Logg
     CommentOnTable(createUnresolvedTable(ctx.multipartIdentifier, "COMMENT ON TABLE"), comment)
   }
 
+  /**
+   * Create an index, returning a [[CreateIndex]] logical plan.
+   * For example:
+   * {{{
+   * CREATE [index_type] INDEX [index_name] ON [TABLE] table_name (column_index_property_list)

Review comment:
       ```suggestion
      * CREATE [index_type] INDEX index_name ON [TABLE] table_name (column_index_property_list)
   ```
   
   index name is not optional




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