Bugzilla – Attachment 3724 Details for
Bug 6078
Patron with no checkout Report overload the server
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[patch]
Patch
0001-Bug-6078-Request-to-find-borrowers-without-issues-ov.patch (text/plain), 1.93 KB, created by
Julian Maurice
on 2011-04-06 08:26:49 UTC
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Description:
Patch
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Creator:
Julian Maurice
Created:
2011-04-06 08:26:49 UTC
Size:
1.93 KB
patch
obsolete
>From 1ab0b0738d460cc960770e0828a5190fcb589c4d Mon Sep 17 00:00:00 2001 >From: Sophie Meynieux <sophie.meynieux@biblibre.com> >Date: Mon, 28 Feb 2011 16:25:23 +0100 >Subject: [PATCH] Bug 6078: Request to find borrowers without issues overload the server > >Optimization of the SQL request using NOT EXISTS instead of NOT IN > >BibLibre MT5946 >--- > reports/borrowers_out.pl | 18 ++++++------------ > 1 files changed, 6 insertions(+), 12 deletions(-) > >diff --git a/reports/borrowers_out.pl b/reports/borrowers_out.pl >index 0a135e1..278e412 100755 >--- a/reports/borrowers_out.pl >+++ b/reports/borrowers_out.pl >@@ -230,18 +230,12 @@ sub calculate { > @$filters[0]=~ s/\*/%/g if (@$filters[0]); > $strcalc .= " AND borrowers.categorycode like '" . @$filters[0] ."'" if ( @$filters[0] ); > >- my $strqueryfilter = "SELECT DISTINCT borrowernumber FROM "; >- $strqueryfilter .= "(SELECT borrowernumber from old_issues WHERE borrowernumber IS NOT NULL "; >- if ($filters->[1]){ >- $strqueryfilter .= "AND old_issues.timestamp> '$filters->[1]' "; >- } >- $strqueryfilter .= "UNION SELECT borrowernumber FROM issues WHERE 1 "; >- if ($filters->[1]){ >- $strqueryfilter .= "AND issues.timestamp> '$filters->[1]' "; >- } >- $strqueryfilter .= ") active_borrowers"; >- >- $strcalc .= " AND borrowers.borrowernumber not in ($strqueryfilter)"; >+ $strcalc .= " AND NOT EXISTS (SELECT * FROM issues WHERE issues.borrowernumber=borrowers.borrowernumber "; >+ $strcalc .= " AND issues.timestamp> '" . @$filters[1] . "'" if (@$filters[1]); >+ $strcalc .= ") "; >+ $strcalc .= " AND NOT EXISTS (SELECT * FROM old_issues WHERE old_issues.borrowernumber=borrowers.borrowernumber "; >+ $strcalc .= " AND old_issues.timestamp> '" . @$filters[1] . "'" if (@$filters[1]); >+ $strcalc .= ") "; > $strcalc .= " group by borrowers.borrowernumber"; > $strcalc .= ", $colfield" if ($column); > $strcalc .= " order by $colfield " if ($colfield); >-- >1.7.4.1 >
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bug 6078
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