From 3c110b13b591308cb42767c9cdf7262c11ea3778 Mon Sep 17 00:00:00 2001 From: Dan McGee Date: Wed, 22 Jun 2011 10:04:11 -0500 Subject: Use sane ORDER BY clauses in package list queries We were doing some silly things here with an "ORDER BY Name, CategoryID" clause, due to the fact that Name is unique, and thus any additional ordering after Name will have no effect. Of course, the dumb as a box of rocks MySQL query optimizer doesn't realize this, leading to full table scans every time of ~30000 packages instead of using index scans for the ordering and only retrieving the first 50 rows. The biggest change is noted in the default sort order as it cuts down the columns to one, but we can remove the redundant sort from other orderings as well, even though those will still not be able to use an index-driven query plan. Signed-off-by: Dan McGee Signed-off-by: Lukas Fleischer --- web/lib/pkgfuncs.inc.php | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'web') diff --git a/web/lib/pkgfuncs.inc.php b/web/lib/pkgfuncs.inc.php index 46768f2..8cd1c61 100644 --- a/web/lib/pkgfuncs.inc.php +++ b/web/lib/pkgfuncs.inc.php @@ -472,23 +472,23 @@ function pkg_search_page($SID="") { $order = (isset($_GET["SO"]) && $_GET["SO"] == 'd') ? 'DESC' : 'ASC'; - $q_sort = "ORDER BY Name ".$order.", CategoryID DESC "; + $q_sort = "ORDER BY Name ".$order." "; $sort_by = isset($_GET["SB"]) ? $_GET["SB"] : ''; switch ($sort_by) { case 'c': $q_sort = "ORDER BY CategoryID ".$order.", Name ASC "; break; case 'v': - $q_sort = "ORDER BY NumVotes ".$order.", Name ASC, CategoryID DESC "; + $q_sort = "ORDER BY NumVotes ".$order.", Name ASC "; break; case 'w': if ($SID) { - $q_sort = "ORDER BY Voted ".$order.", Name ASC, CategoryID DESC "; + $q_sort = "ORDER BY Voted ".$order.", Name ASC "; } break; case 'o': if ($SID) { - $q_sort = "ORDER BY Notify ".$order.", Name ASC, CategoryID DESC "; + $q_sort = "ORDER BY Notify ".$order.", Name ASC "; } break; case 'm': -- cgit v1.2.3-70-g09d2