8 use DBIC::SqlMakerTest;
10 my $schema = DBICTest->init_schema();
11 my $orig_debug = $schema->storage->debug;
13 my $cdrs = $schema->resultset('CD')->search({ 'me.artist' => { '!=', 2 }});
17 siblings => $cdrs->search ({ artist => $_->get_column('artist') })->count - 1,
18 track_titles => [ map { $_->title } ($_->tracks->all) ],
22 my $c_rs = $cdrs->search ({}, {
24 '+columns' => { sibling_count => $cdrs->search(
26 'siblings.artist' => { -ident => 'me.artist' },
27 'siblings.cdid' => { '!=' => ['-and', { -ident => 'me.cdid' }, 23414] },
28 }, { alias => 'siblings' },
29 )->count_rs->as_query,
36 SELECT me.cdid, me.artist, me.title, me.year, me.genreid, me.single_track,
39 WHERE siblings.artist = me.artist
40 AND siblings.cdid != me.cdid
41 AND siblings.cdid != ?
44 tracks.trackid, tracks.cd, tracks.position, tracks.title, tracks.last_updated_on, tracks.last_updated_at
46 LEFT JOIN track tracks
47 ON tracks.cd = me.cdid
53 [ { sqlt_datatype => 'integer', dbic_colname => 'siblings.cdid' }
56 [ { sqlt_datatype => 'integer', dbic_colname => 'me.artist' }
60 [ { sqlt_datatype => 'integer', dbic_colname => 'me.artist' }
63 'Expected SQL on correlated realiased subquery'
67 $schema->storage->debugcb(sub { $queries++; });
68 $schema->storage->debug(1);
73 track_titles => [ map { $_->title } ($_->tracks->all) ],
74 siblings => $_->get_column ('sibling_count'),
79 'Proper information retrieved from correlated subquery'
82 is ($queries, 1, 'Only 1 query fired to retrieve everything');
84 $schema->storage->debug($orig_debug);
85 $schema->storage->debugcb(undef);
87 # now add an unbalanced select/as pair
88 $c_rs = $c_rs->search ({}, {
89 '+select' => $cdrs->search(
90 { 'siblings.artist' => { -ident => 'me.artist' } },
91 { alias => 'siblings', columns => [
92 { first_year => { min => 'year' }},
93 { last_year => { max => 'year' }},
96 '+as' => [qw/active_from active_to/],
102 SELECT me.cdid, me.artist, me.title, me.year, me.genreid, me.single_track,
105 WHERE siblings.artist = me.artist
106 AND siblings.cdid != me.cdid
107 AND siblings.cdid != ?
110 (SELECT MIN( year ), MAX( year )
112 WHERE siblings.artist = me.artist
115 tracks.trackid, tracks.cd, tracks.position, tracks.title, tracks.last_updated_on, tracks.last_updated_at
117 LEFT JOIN track tracks
118 ON tracks.cd = me.cdid
124 [ { sqlt_datatype => 'integer', dbic_colname => 'siblings.cdid' }
127 [ { sqlt_datatype => 'integer', dbic_colname => 'me.artist' }
131 [ { sqlt_datatype => 'integer', dbic_colname => 'me.artist' }
135 [ { sqlt_datatype => 'integer', dbic_colname => 'me.artist' }
138 'Expected SQL on correlated realiased subquery'
141 # test for subselect identifier leakage
142 # NOTE - the hodge-podge mix of literal and regular identifuers is *deliberate*
143 for my $quote_names (0,1) {
144 my $schema = DBICTest->init_schema( quote_names => $quote_names );
146 my ($ql, $qr) = $schema->storage->sql_maker->_quote_chars;
148 my $art_rs = $schema->resultset('Artist')->search ({}, {
149 order_by => 'me.artistid',
154 my $inner_lim_bindtype = { sqlt_datatype => 'integer' };
156 for my $inner_relchain (qw( cds_unordered cds ) ) {
158 my $stupid_latest_competition_release_query = $schema->resultset('Artist')->search(
159 { 'competition.artistid' => { '!=', { -ident => 'me.artistid' } } },
160 { alias => 'competition' },
161 )->search_related( $inner_relchain, {}, {
162 rows => 1, order_by => 'year', columns => { year => \'year' }, distinct => 1
163 })->get_column(\'year')->max_rs;
165 my $final_query = $art_rs->search( {}, {
166 '+columns' => { max_competition_release => \[
167 @${ $stupid_latest_competition_release_query->as_query }
172 $final_query->all_hri,
174 { artistid => 1, charfield => undef, max_competition_release => 1998, name => "Caterwauler McCrae", rank => 13, cds => [
175 { artist => 1, cdid => 3, genreid => undef, single_track => undef, title => "Caterwaulin' Blues", year => 1997 },
176 { artist => 1, cdid => 2, genreid => undef, single_track => undef, title => "Forkful of bees", year => 2001 },
177 { artist => 1, cdid => 1, genreid => 1, single_track => undef, title => "Spoonful of bees", year => 1999 },
179 { artistid => 2, charfield => undef, max_competition_release => 1997, name => "Random Boy Band", rank => 13, cds => [
180 { artist => 2, cdid => 4, genreid => undef, single_track => undef, title => "Generic Manufactured Singles", year => 2001 },
183 "Expected result from weird query",
186 # the decomposition to sql/bind is *deliberate* in both instances
187 # we want to ensure this keeps working for lietral sql, even when
188 # as_query switches to return an overloaded dq node
189 my ($sql, @bind) = @${ $final_query->as_query };
191 my $correlated_sql = qq{ (
195 FROM ${ql}artist${qr} ${ql}competition${qr}
196 JOIN cd ${ql}${inner_relchain}${qr}
197 ON ${ql}${inner_relchain}${qr}.${ql}artist${qr} = ${ql}competition${qr}.${ql}artistid${qr}
198 WHERE ${ql}competition${qr}.${ql}artistid${qr} != ${ql}me${qr}.${ql}artistid${qr}
200 ORDER BY MIN( ${ql}year${qr} )
202 ) ${ql}${inner_relchain}${qr}
209 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},
211 ${ql}cds${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}
213 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},
215 FROM ${ql}artist${qr} ${ql}me${qr}
216 ORDER BY ${ql}me${qr}.${ql}artistid${qr}
219 LEFT JOIN cd ${ql}cds${qr}
220 ON ${ql}cds${qr}.${ql}artist${qr} = ${ql}me${qr}.${ql}artistid${qr}
221 ORDER BY ${ql}me${qr}.${ql}artistid${qr}
224 [ $inner_lim_bindtype
226 [ $inner_lim_bindtype
228 [ { sqlt_datatype => 'integer' }
231 "No leakage of correlated subquery identifiers (quote_names => $quote_names, inner alias '$inner_relchain')"