cloud-fan commented on code in PR #47272:
URL: https://github.com/apache/spark/pull/47272#discussion_r1679511481


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sql/api/src/main/antlr4/org/apache/spark/sql/catalyst/parser/SqlBaseParser.g4:
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@@ -251,26 +258,29 @@ statement
     | (MSCK)? REPAIR TABLE identifierReference
         (option=(ADD|DROP|SYNC) PARTITIONS)?                           
#repairTable
     | op=(ADD | LIST) identifier .*?                                   
#manageResource
-    | SET COLLATION collationName=identifier                           
#setCollation
-    | SET ROLE .*?                                                     
#failNativeCommand
+    | CREATE INDEX (IF errorCapturingNot EXISTS)? identifier ON TABLE?
+        identifierReference (USING indexType=identifier)?
+        LEFT_PAREN columns=multipartIdentifierPropertyList RIGHT_PAREN
+        (OPTIONS options=propertyList)?                                
#createIndex
+    | DROP INDEX (IF EXISTS)? identifier ON TABLE? identifierReference 
#dropIndex
+    | unsupportedHiveNativeCommands .*?                                
#failNativeCommand
+    ;
+
+setResetStatement
+    : SET COLLATION collationName=identifier                           
#setCollation
+    | SET ROLE .*?                                                     
#failSetRole
     | SET TIME ZONE interval                                           
#setTimeZone
     | SET TIME ZONE timezone                                           
#setTimeZone
     | SET TIME ZONE .*?                                                
#setTimeZone
     | SET (VARIABLE | VAR) assignmentList                              
#setVariable
     | SET (VARIABLE | VAR) LEFT_PAREN multipartIdentifierList RIGHT_PAREN EQ
-          LEFT_PAREN query RIGHT_PAREN                                 
#setVariable
+        LEFT_PAREN query RIGHT_PAREN                                   
#setVariable

Review Comment:
   can we avoid duplicating the SET VAR parser rule?



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