anchor.diff:      : ALTER INDEX ALL IN TABLESPACE indexName (OWNED BY ignoredIdentifiers_)?
       ;
   
  -tableNameParts
  -    : tableNamePart (COMMA_ tableNamePart)*
  -    ;
  -
  -tableNamePart
  +tableNamesClause
  +    : tableNameClause (COMMA_ tableNameClause)*
  +    ;
  +
  +tableNameClause
       : tableName ASTERISK_?
       ;
   
  
positive.code:     : ONLY?
      ;
  
  existClause_
      : (IF EXISTS)?
      ;
  
  
negative.code:     | addConstraintSpecification
      | ALTER CONSTRAINT ignoredIdentifier_ constraintOptionalParam
      | VALIDATE CONSTRAINT ignoredIdentifier_
      | DROP CONSTRAINT indexExistClause_ ignoredIdentifier_ (RESTRICT | CASCADE)?
      | (DISABLE | ENABLE) TRIGGER (ignoredIdentifier_ | ALL | USER)?
      | ENABLE (REPLICA | ALWAYS) TRIGGER ignoredIdentifier_
      | (DISABLE | ENABLE) RULE ignoredIdentifier_
  