anchor.diff:  
   primaryKeyOnClause:
   	ON (
  -		(schemeName LEFT_PAREN  columnName RIGHT_PAREN)   
  +		(schemaName LEFT_PAREN  columnName RIGHT_PAREN)   
            | fileGroup 
            | STRING 
           ) 
  
positive.code: 	    (WITH LEFT_PAREN  indexOption ( COMMA indexOption)* RIGHT_PAREN)?   
  	    ( ON 
  	    	( 
  	    		(schemeName LEFT_PAREN columnName RIGHT_PAREN)  
  	         	| groupName  
  	         	| DEFAULT   
  	         )  
  	    )?   
  	    ( FILESTREAM_ON ( groupName | schemeName | STRING ) )?  
  	)   
  	;
  	
  
negative.code: createMemoryTable:	
      LEFT_PAREN  
  		columnOption (COMMA columnOption)*
  		(COMMA periodClause)?  
      RIGHT_PAREN 
      (WITH LEFT_PAREN tableOptOption ( COMMA tableOptOption)* RIGHT_PAREN)? 
  	; 
  