7 use DBICTest ':DiffSQL';
9 my $schema = DBICTest->init_schema();
11 my $cdrs = $schema->resultset('CD')->search({ 'me.artist' => { '!=', 2 }});
15 siblings => $cdrs->search ({ artist => $_->get_column('artist') })->count - 1,
16 track_titles => [ sort $_->tracks->get_column('title')->all ],
20 my $c_rs = $cdrs->search ({}, {
22 '+columns' => { sibling_count => $cdrs->search(
24 'siblings.artist' => { -ident => 'me.artist' },
25 'siblings.cdid' => { '!=' => ['-and', { -ident => 'me.cdid' }, 23414] },
26 }, { alias => 'siblings' },
27 )->count_rs->as_query,
34 SELECT me.cdid, me.artist, me.title, me.year, me.genreid, me.single_track,
38 AND siblings.artist = me.artist
39 AND siblings.cdid != me.cdid
40 AND siblings.cdid != ?
42 tracks.trackid, tracks.cd, tracks.position, tracks.title, tracks.last_updated_on, tracks.last_updated_at
44 LEFT JOIN track tracks
45 ON tracks.cd = me.cdid
51 [ { sqlt_datatype => 'integer', dbic_colname => 'me.artist' }
54 [ { sqlt_datatype => 'integer', dbic_colname => 'siblings.cdid' }
58 [ { sqlt_datatype => 'integer', dbic_colname => 'me.artist' }
61 'Expected SQL on correlated realiased subquery'
64 $schema->is_executed_querycount( sub {
68 track_titles => [ sort map { $_->title } ($_->tracks->all) ],
69 siblings => $_->get_column ('sibling_count'),
74 'Proper information retrieved from correlated subquery'
76 }, 1, 'Only 1 query fired to retrieve everything');
78 # now add an unbalanced select/as pair
79 $c_rs = $c_rs->search ({}, {
80 '+select' => $cdrs->search(
81 { 'siblings.artist' => { -ident => 'me.artist' } },
82 { alias => 'siblings', columns => [
83 { first_year => { min => 'year' }},
84 { last_year => { max => 'year' }},
87 '+as' => [qw/active_from active_to/],
93 SELECT me.cdid, me.artist, me.title, me.year, me.genreid, me.single_track,
97 AND siblings.artist = me.artist
98 AND siblings.cdid != me.cdid
99 AND siblings.cdid != ?
101 (SELECT MIN( year ), MAX( year )
104 AND siblings.artist = me.artist
106 tracks.trackid, tracks.cd, tracks.position, tracks.title, tracks.last_updated_on, tracks.last_updated_at
108 LEFT JOIN track tracks
109 ON tracks.cd = me.cdid
115 [ { sqlt_datatype => 'integer', dbic_colname => 'me.artist' }
118 [ { sqlt_datatype => 'integer', dbic_colname => 'siblings.cdid' }
122 [ { sqlt_datatype => 'integer', dbic_colname => 'me.artist' }
126 [ { sqlt_datatype => 'integer', dbic_colname => 'me.artist' }
129 'Expected SQL on correlated realiased subquery'
132 # test for subselect identifier leakage
133 # NOTE - the hodge-podge mix of literal and regular identifuers is *deliberate*
134 for my $quote_names (0,1) {
135 my $schema = DBICTest->init_schema( quote_names => $quote_names );
137 my ($ql, $qr) = $schema->storage->sql_maker->_quote_chars;
139 my $art_rs = $schema->resultset('Artist')->search ({}, {
140 order_by => 'me.artistid',
145 my $inner_lim_bindtype = { sqlt_datatype => 'integer' };
147 for my $inner_relchain (qw( cds_unordered cds ) ) {
149 my $stupid_latest_competition_release_query = $schema->resultset('Artist')->search(
150 { 'competition.artistid' => { '!=', { -ident => 'me.artistid' } } },
151 { alias => 'competition' },
152 )->search_related( $inner_relchain, {}, {
153 rows => 1, order_by => 'year', columns => { year => \'year' }, distinct => 1
154 })->get_column(\'year')->max_rs;
156 my $final_query = $art_rs->search( {}, {
157 '+columns' => { max_competition_release => \[
158 @${ $stupid_latest_competition_release_query->as_query }
162 # we are using cds_unordered explicitly above - do the sorting manually
163 my @results = sort { $a->{artistid} <=> $b->{artistid} } @{$final_query->all_hri};
164 @$_ = sort { $a->{cdid} <=> $b->{cdid} } @$_ for map { $_->{cds} } @results;
169 { artistid => 1, charfield => undef, max_competition_release => 1998, name => "Caterwauler McCrae", rank => 13, cds => [
170 { artist => 1, cdid => 1, genreid => 1, single_track => undef, title => "Spoonful of bees", year => 1999 },
171 { artist => 1, cdid => 2, genreid => undef, single_track => undef, title => "Forkful of bees", year => 2001 },
172 { artist => 1, cdid => 3, genreid => undef, single_track => undef, title => "Caterwaulin' Blues", year => 1997 },
174 { artistid => 2, charfield => undef, max_competition_release => 1997, name => "Random Boy Band", rank => 13, cds => [
175 { artist => 2, cdid => 4, genreid => undef, single_track => undef, title => "Generic Manufactured Singles", year => 2001 },
178 "Expected result from weird query",
181 # the decomposition to sql/bind is *deliberate* in both instances
182 # we want to ensure this keeps working for lietral sql, even when
183 # as_query switches to return an overloaded dq node
184 my ($sql, @bind) = @${ $final_query->as_query };
186 my $correlated_sql = qq{ (
190 FROM ${ql}artist${qr} ${ql}competition${qr}
191 JOIN cd ${ql}${inner_relchain}${qr}
192 ON ${ql}${inner_relchain}${qr}.${ql}artist${qr} = ${ql}competition${qr}.${ql}artistid${qr}
193 WHERE ${ql}competition${qr}.${ql}artistid${qr} != ${ql}me${qr}.${ql}artistid${qr}
195 ORDER BY MIN( ${ql}year${qr} )
197 ) ${ql}${inner_relchain}${qr}
204 SELECT ${ql}me${qr}.${ql}artistid${qr}, ${ql}me${qr}.${ql}name${qr}, ${ql}me${qr}.${ql}rank${qr}, ${ql}me${qr}.${ql}charfield${qr},
206 ${ql}cds${qr}.${ql}cdid${qr}, ${ql}cds${qr}.${ql}artist${qr}, ${ql}cds${qr}.${ql}title${qr}, ${ql}cds${qr}.${ql}year${qr}, ${ql}cds${qr}.${ql}genreid${qr}, ${ql}cds${qr}.${ql}single_track${qr}
208 SELECT ${ql}me${qr}.${ql}artistid${qr}, ${ql}me${qr}.${ql}name${qr}, ${ql}me${qr}.${ql}rank${qr}, ${ql}me${qr}.${ql}charfield${qr},
210 FROM ${ql}artist${qr} ${ql}me${qr}
211 ORDER BY ${ql}me${qr}.${ql}artistid${qr}
214 LEFT JOIN cd ${ql}cds${qr}
215 ON ${ql}cds${qr}.${ql}artist${qr} = ${ql}me${qr}.${ql}artistid${qr}
216 ORDER BY ${ql}me${qr}.${ql}artistid${qr}
219 [ $inner_lim_bindtype
221 [ $inner_lim_bindtype
223 [ { sqlt_datatype => 'integer' }
226 "No leakage of correlated subquery identifiers (quote_names => $quote_names, inner alias '$inner_relchain')"