Fixed #14246: Modified aggregation_regress tests so that they will pass on a variety (sqlite, Postgres, MySQL/MyISAM) of DBs.
Fixed #14246: Modified aggregation_regress tests so that they will pass on a variety (sqlite, Postgres, MySQL/MyISAM) of DBs.


git-svn-id: 554f83ef17aa7291f84efa897c1acfc5d0035373@13712 bcc190cf-cafb-0310-a4f2-bffc1f526a37

svn2github/django,svn2github/django,svn2github/django