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Viewing changes to tests/kewpie/randgen/lib/GenTest/Transform/OrderBy.pm

  • Committer: Package Import Robot
  • Author(s): Tobias Frost
  • Date: 2012-04-04 15:12:07 UTC
  • mfrom: (1.1.4)
  • Revision ID: package-import@ubuntu.com-20120404151207-xwsgn1xegslle4p0
Tags: 1:7.1.32-rc-1
* New upstream release.
* Plugin-filtered-replicator upstream removed and will no longer be built.
* Updating d/*install files to accommodate upstream changes from drizzle7
  to drizzle
* Added symlink in libdrizzledmessage-dev to library
* libdrizzle: soname-bump
* Rename package drizzle-plugin-performance-dictionary to shorten package name
  (due to linitan warning package-has-long-file-name)
* Debian/control: removed unused substitution variable ${shlibs:Depends} for
  -dbg and -dev packages

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tests/kewpie/randgen/lib/GenTest/Transform/OrderBy.pm
 
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# Copyright (c) 2008, 2011 Oracle and/or its affiliates. All rights reserved.
 
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# Use is subject to license terms.
 
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#
 
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# This program is free software; you can redistribute it and/or modify
 
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# it under the terms of the GNU General Public License as published by
 
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# the Free Software Foundation; version 2 of the License.
 
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#
 
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# This program is distributed in the hope that it will be useful, but
 
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# WITHOUT ANY WARRANTY; without even the implied warranty of
 
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 
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# General Public License for more details.
 
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#
 
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# You should have received a copy of the GNU General Public License
 
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# along with this program; if not, write to the Free Software
 
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# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
 
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# USA
 
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package GenTest::Transform::OrderBy;
 
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require Exporter;
 
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@ISA = qw(GenTest GenTest::Transform);
 
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use strict;
 
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use lib 'lib';
 
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use GenTest;
 
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use GenTest::Transform;
 
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use GenTest::Constants;
 
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sub transform {
 
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        my ($class, $original_query) = @_;
 
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       my @selects = $original_query =~ m{(SELECT)}sgio;
 
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       if ($original_query =~ m{GROUP\s+BY}io) {
 
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                return STATUS_WONT_HANDLE;
 
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        } elsif ($original_query =~ m{ORDER\s+BY[^()]*CONCAT\s*\(}sio) {
 
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                # CONCAT() in ORDER BY requires more complex regexes below
 
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                # for correct behavior, so we skip this query.
 
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                return STATUS_WONT_HANDLE;
 
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        } else {
 
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                my $transform_outcome;
 
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                if ($original_query =~ m{LIMIT[^()]*$}sio) {
 
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                        $transform_outcome = "TRANSFORM_OUTCOME_SUPERSET";
 
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                        if ($original_query =~ s{ORDER\s+BY[^()]*$}{}sio) {
 
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                                # Removing ORDER BY
 
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                        } elsif ($#selects == 0) {
 
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                                return STATUS_WONT_HANDLE if $original_query !~ s{LIMIT[^()]*$}{ORDER BY 1}sio;
 
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                        } else {
 
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                                return STATUS_WONT_HANDLE;
 
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                        }
 
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                } else {
 
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                        $transform_outcome = "TRANSFORM_OUTCOME_UNORDERED_MATCH";
 
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                        if ($original_query =~ s{ORDER\s+BY[^()]*$}{}sio) {
 
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                                # Removing ORDER BY
 
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                       } elsif ($#selects == 0) {
 
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                               return STATUS_WONT_HANDLE if $original_query !~ s{$}{ ORDER BY 1}sio;
 
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                                # Add ORDER BY 1 (no LIMIT)
 
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                        } else {
 
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                                return STATUS_WONT_HANDLE;
 
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                        }
 
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                }
 
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                return $original_query." /* $transform_outcome */ ";
 
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        }
 
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}
 
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1;