anchor.diff:      : LP_ createDefinitions_ RP_
       ;
   
  -createLikeClause_
  -    : LP_? LIKE tableName RP_?
  -    ;
  -
   createDefinitions_
       : createDefinition_ (COMMA_ createDefinition_)*
       ;
  
positive.code: 
  constraintDefinition_
      : (CONSTRAINT ignoredIdentifier_?)? (primaryKeyOption_ | uniqueOption_ | foreignKeyOption_)
      ;
  
  checkConstraintDefinition_
      : (CONSTRAINT ignoredIdentifier_?)? CHECK expr (NOT? ENFORCED)?
      ;
  
  inlineDataType_
  
negative.code: 
  foreignKeyOption_
      : FOREIGN KEY indexName? columnNames referenceDefinition_
      ;
  
  createLikeClause_
      : LP_? LIKE tableName RP_?
      ;
  
  alterSpecifications_
  