- All LIMIT queries must go through the pager or through db_query_range().
  The syntax for db_query_range() was enhanced so it matches db_query(). So
  you may pass extra arguments of the SQL statement which are checked via
  check_query() and then substituted into the SQL statement. After these
  optional arguments, you always pass $from and $count parameters which
  define your range.  Most often, the $from is 0 and the count is the max
  number of records you want returned.  Patch by Moshe.

- The pager_query() function for PEAR was enhanced so that it adds  proper
  GROUP BY statement counting the number of records to be paged. Patch by
  James Arthur.

- MSSQL database scheme by Moshe.