anchor.diff:      ;
   
   alterTable
  -    : ALTER TABLE tableExistClause_ onlyClause_ tableName asteriskClause_ (alterTableActions | renameColumnSpecification | renameConstraint | renameTableSpecification_)
  +    : ALTER TABLE tableExistClause_ onlyClause_ tableName asteriskClause_ alterClause_
       ;
   
   alterIndex
  
positive.code:     : RENAME CONSTRAINT ignoredIdentifier_ TO ignoredIdentifier_
      ;
  
  storageParameterWithValue
      : storageParameter EQ_ simpleExpr
      ;
  
  storageParameter
      : IDENTIFIER_
      ;
  
  renameTableSpecification_
      : RENAME TO newTableName
      ;
  
negative.code: newTableName
      : IDENTIFIER_
      ;
  