anchor.diff:      ;
   
   inheritClause
  -    : INHERITS tableNames
  +    : (INHERITS tableNames)?
       ;
   
   alterIndexName
  
positive.code: import Symbol, Keyword, Literals, BaseRule;
  
  createTable
      : CREATE temporaryClause_ TABLE existClause_ tableName createDefinitions inheritClause?
      ;
  
  createIndex
  
negative.code:     : (IF NOT EXISTS)?
      ;
  
  createDefinitionClause_
      : LP_ (createDefinition (COMMA_ createDefinition)*)? RP_
      ;
  
  