anchor.diff:      ;
   
   setStorageParameter:
  -    SET LEFT_PAREN storageParameters RIGHT_PAREN
  +    SET storageParametersWithParen
       ;
   
   resetStorageParameter:
  -    RESET LEFT_PAREN storageParameters RIGHT_PAREN
  +    RESET storageParametersWithParen
  +    ;
  +    
  +storageParametersWithParen:
  +    LEFT_PAREN storageParameters RIGHT_PAREN
       ;
   
   alterIndexDependsOnExtension:
  
positive.code: arrayConstructor:
  	| ARRAY LEFT_BRACKET exprs RIGHT_BRACKET
  	| ARRAY LEFT_BRACKET arrayConstructor (COMMA arrayConstructor)* RIGHT_BRACKET
  	;
negative.code:     | liter
      | ID
      ;
      
      
  
  alterIndexName:
      ALTER INDEX (IF EXISTS)? indexName
  