anchor.diff:      | SCROLL_LOCKS
       | SELF
       | SERIALIZABLE
  +    | SIMPLE
       | SNAPSHOT
  +    | SPATIAL_WINDOW_MAX_CELLS
       | STATIC
       | STATS_STREAM
       | STDEV
  
positive.code: T-SQL (Transact-SQL, MSSQL) grammar.
  The MIT License (MIT).
  Copyright (c) 2015-2016, Ivan Kochurkin (kvanttt@gmail.com), Positive Technologies.
  
  Permission is hereby granted, free of charge, to any person obtaining a copy
  of this software and associated documentation files (the "Software"), to deal
  
negative.code:     : table_name_with_hint        as_table_alias?
      | rowset_function             as_table_alias?
      | derived_table              (as_table_alias column_alias_list?)?
      | change_table                as_table_alias
      | function_call               as_table_alias?
      | LOCAL_ID                    as_table_alias?
      | LOCAL_ID '.' function_call (as_table_alias column_alias_list?)?
      ;
  
  change_table
  	: CHANGETABLE '(' CHANGES table_name ',' (NULL | DECIMAL | LOCAL_ID) ')'
  	;
  
  // https://msdn.microsoft.com/en-us/library/ms191472.aspx
  join_part
  