4 package OpenILS::Application::Storage::Driver::Pg::QueryParser;
5 use OpenILS::Application::Storage::QueryParser;
6 use base 'QueryParser';
7 use OpenSRF::Utils::JSON;
8 use OpenILS::Application::AppUtils;
9 my $U = 'OpenILS::Application::AppUtils';
15 if ($value =~ /^\d/) { # may have to use non-$ quoting
17 $value =~ s/\\/\\\\/g;
20 return "\$_$$\$$value\$_$$\$";
23 sub quote_phrase_value {
27 my $left_anchored = $value =~ m/^\^/;
28 my $right_anchored = $value =~ m/\$$/;
29 $value =~ s/\^// if $left_anchored;
30 $value =~ s/\$$// if $right_anchored;
31 $value =~ quotemeta($value);
32 $value = '^' . $value if $left_anchored;
33 $value = "$value\$" if $right_anchored;
34 return $self->quote_value($value);
41 sub default_preferred_language {
45 $self->custom_data->{default_preferred_language} = $lang if ($lang);
46 return $self->custom_data->{default_preferred_language};
49 sub default_preferred_language_multiplier {
53 $self->custom_data->{default_preferred_language_multiplier} = $lang if ($lang);
54 return $self->custom_data->{default_preferred_language_multiplier};
60 return 0 unless $self->parse_tree;
61 return 0 if @{$self->parse_tree->filters};
62 return 0 if @{$self->parse_tree->modifiers};
63 for my $node ( @{ $self->parse_tree->query_nodes } ) {
64 return 0 if (!ref($node) && $node eq '|');
65 next unless (ref($node));
66 return 0 if ($node->isa('QueryParser::query_plan'));
74 return $self->parse_tree->toSQL;
81 $self->custom_data->{dynamic_filters} ||= [];
82 push(@{$self->custom_data->{dynamic_filters}}, $new) if ($new);
83 return $self->custom_data->{dynamic_filters};
90 $self->custom_data->{dynamic_sorters} ||= [];
91 push(@{$self->custom_data->{dynamic_sorters}}, $new) if ($new);
92 return $self->custom_data->{dynamic_sorters};
95 sub facet_field_id_map {
99 $self->custom_data->{facet_field_id_map} ||= {};
100 $self->custom_data->{facet_field_id_map} = $map if ($map);
101 return $self->custom_data->{facet_field_id_map};
104 sub add_facet_field_id_map {
111 $self->add_facet_field( $class => $field );
112 $self->facet_field_id_map->{by_id}{$id} = { classname => $class, field => $field, weight => $weight };
113 $self->facet_field_id_map->{by_class}{$class}{$field} = $id;
116 by_id => { $id => { classname => $class, field => $field, weight => $weight } },
117 by_class => { $class => { $field => $id } }
121 sub facet_field_class_by_id {
125 return $self->facet_field_id_map->{by_id}{$id};
128 sub facet_field_ids_by_class {
133 return undef unless ($class);
136 return [$self->facet_field_id_map->{by_class}{$class}{$field}];
139 return [values( %{ $self->facet_field_id_map->{by_class}{$class} } )];
142 sub search_field_id_map {
146 $self->custom_data->{search_field_id_map} ||= {};
147 $self->custom_data->{search_field_id_map} = $map if ($map);
148 return $self->custom_data->{search_field_id_map};
151 sub add_search_field_id_map {
158 $self->add_search_field( $class => $field );
159 $self->search_field_id_map->{by_id}{$id} = { classname => $class, field => $field, weight => $weight };
160 $self->search_field_id_map->{by_class}{$class}{$field} = $id;
163 by_id => { $id => { classname => $class, field => $field, weight => $weight } },
164 by_class => { $class => { $field => $id } }
168 sub search_field_class_by_id {
172 return $self->search_field_id_map->{by_id}{$id};
175 sub search_field_ids_by_class {
180 return undef unless ($class);
183 return [$self->search_field_id_map->{by_class}{$class}{$field}];
186 return [values( %{ $self->search_field_id_map->{by_class}{$class} } )];
189 sub relevance_bumps {
193 $self->custom_data->{rel_bumps} ||= {};
194 $self->custom_data->{rel_bumps} = $bumps if ($bumps);
195 return $self->custom_data->{rel_bumps};
198 sub find_relevance_bumps {
203 return $self->relevance_bumps->{$class}{$field};
206 sub add_relevance_bump {
211 my $multiplier = shift;
214 if (defined($active) and $active eq 'f') {
220 $self->relevance_bumps->{$class}{$field}{$type} = { multiplier => $multiplier, active => $active };
222 return { $class => { $field => { $type => { multiplier => $multiplier, active => $active } } } };
226 sub initialize_search_field_id_map {
228 my $cmf_list = shift;
230 for my $cmf (@$cmf_list) {
231 __PACKAGE__->add_search_field_id_map( $cmf->field_class, $cmf->name, $cmf->id, $cmf->weight ) if ($U->is_true($cmf->search_field));
232 __PACKAGE__->add_facet_field_id_map( $cmf->field_class, $cmf->name, $cmf->id, $cmf->weight ) if ($U->is_true($cmf->facet_field));
235 return $self->search_field_id_map;
238 sub initialize_aliases {
240 my $cmsa_list = shift;
242 for my $cmsa (@$cmsa_list) {
244 __PACKAGE__->add_search_class_alias( $cmsa->field_class, $cmsa->alias );
246 my $c = $self->search_field_class_by_id( $cmsa->field );
247 __PACKAGE__->add_search_field_alias( $cmsa->field_class, $c->{field}, $cmsa->alias );
252 sub initialize_relevance_bumps {
254 my $sra_list = shift;
256 for my $sra (@$sra_list) {
257 my $c = $self->search_field_class_by_id( $sra->field );
258 __PACKAGE__->add_relevance_bump( $c->{classname}, $c->{field}, $sra->bump_type, $sra->multiplier, $sra->active );
261 return $self->relevance_bumps;
264 sub initialize_query_normalizers {
266 my $tree = shift; # open-ils.cstore.direct.config.metabib_field_index_norm_map.search.atomic { "id" : { "!=" : null } }, { "flesh" : 1, "flesh_fields" : { "cmfinm" : ["norm"] }, "order_by" : [{ "class" : "cmfinm", "field" : "pos" }] }
268 for my $cmfinm ( @$tree ) {
269 my $field_info = $self->search_field_class_by_id( $cmfinm->field );
270 __PACKAGE__->add_query_normalizer( $field_info->{classname}, $field_info->{field}, $cmfinm->norm->func, OpenSRF::Utils::JSON->JSON2perl($cmfinm->params) );
274 sub initialize_dynamic_filters {
276 my $list = shift; # open-ils.cstore.direct.config.record_attr_definition.search.atomic { "id" : { "!=" : null } }
278 for my $crad ( @$list ) {
279 __PACKAGE__->dynamic_filters( __PACKAGE__->add_search_filter( $crad->name ) ) if ($U->is_true($crad->filter));
280 __PACKAGE__->dynamic_sorters( $crad->name ) if ($U->is_true($crad->sorter));
284 sub initialize_filter_normalizers {
286 my $tree = shift; # open-ils.cstore.direct.config.record_attr_index_norm_map.search.atomic { "id" : { "!=" : null } }, { "flesh" : 1, "flesh_fields" : { "crainm" : ["norm"] }, "order_by" : [{ "class" : "crainm", "field" : "pos" }] }
288 for my $crainm ( @$tree ) {
289 __PACKAGE__->add_filter_normalizer( $crainm->name, $crainm->norm->func, OpenSRF::Utils::JSON->JSON2perl($crainm->params) );
294 sub initialization_complete {
302 return $_complete if ($_complete);
304 # tsearch rank normalization adjustments. see http://www.postgresql.org/docs/9.0/interactive/textsearch-controls.html#TEXTSEARCH-RANKING for details
305 $self->custom_data->{rank_cd_weight_map} = {
306 CD_logDocumentLength => 1,
307 CD_documentLength => 2,
308 CD_meanHarmonic => 4,
310 CD_logUniqueWords => 16,
314 $self->add_search_modifier( $_ ) for (keys %{ $self->custom_data->{rank_cd_weight_map} });
316 $self->initialize_search_field_id_map( $args{config_metabib_field} )
317 if ($args{config_metabib_field});
319 $self->initialize_aliases( $args{config_metabib_search_alias} )
320 if ($args{config_metabib_search_alias});
322 $self->initialize_relevance_bumps( $args{search_relevance_adjustment} )
323 if ($args{search_relevance_adjustment});
325 $self->initialize_query_normalizers( $args{config_metabib_field_index_norm_map} )
326 if ($args{config_metabib_field_index_norm_map});
328 $self->initialize_dynamic_filters( $args{config_record_attr_definition} )
329 if ($args{config_record_attr_definition});
331 $self->initialize_filter_normalizers( $args{config_record_attr_index_norm_map} )
332 if ($args{config_record_attr_index_norm_map});
335 $args{config_metabib_field_index_norm_map} &&
336 $args{search_relevance_adjustment} &&
337 $args{config_metabib_search_alias} &&
338 $args{config_metabib_field} &&
339 $args{config_record_attr_definition}
347 __PACKAGE__->add_search_field_id_map( series => seriestitle => 1 => 1 );
349 __PACKAGE__->add_search_field_id_map( series => seriestitle => 1 => 1 );
350 __PACKAGE__->add_relevance_bump( series => seriestitle => first_word => 1.5 );
351 __PACKAGE__->add_relevance_bump( series => seriestitle => full_match => 20 );
353 __PACKAGE__->add_search_field_id_map( title => abbreviated => 2 => 1 );
354 __PACKAGE__->add_relevance_bump( title => abbreviated => first_word => 1.5 );
355 __PACKAGE__->add_relevance_bump( title => abbreviated => full_match => 20 );
357 __PACKAGE__->add_search_field_id_map( title => translated => 3 => 1 );
358 __PACKAGE__->add_relevance_bump( title => translated => first_word => 1.5 );
359 __PACKAGE__->add_relevance_bump( title => translated => full_match => 20 );
361 __PACKAGE__->add_search_field_id_map( title => proper => 6 => 1 );
362 __PACKAGE__->add_query_normalizer( title => proper => 'naco_normalize' );
363 __PACKAGE__->add_relevance_bump( title => proper => first_word => 1.5 );
364 __PACKAGE__->add_relevance_bump( title => proper => full_match => 20 );
365 __PACKAGE__->add_relevance_bump( title => proper => word_order => 10 );
367 __PACKAGE__->add_search_field_id_map( author => coporate => 7 => 1 );
368 __PACKAGE__->add_relevance_bump( author => coporate => first_word => 1.5 );
369 __PACKAGE__->add_relevance_bump( author => coporate => full_match => 20 );
371 __PACKAGE__->add_facet_field_id_map( author => personal => 8 => 1 );
373 __PACKAGE__->add_search_field_id_map( author => personal => 8 => 1 );
374 __PACKAGE__->add_relevance_bump( author => personal => first_word => 1.5 );
375 __PACKAGE__->add_relevance_bump( author => personal => full_match => 20 );
376 __PACKAGE__->add_query_normalizer( author => personal => 'naco_normalize' );
377 __PACKAGE__->add_query_normalizer( author => personal => 'split_date_range' );
379 __PACKAGE__->add_facet_field_id_map( subject => topic => 14 => 1 );
381 __PACKAGE__->add_search_field_id_map( subject => topic => 14 => 1 );
382 __PACKAGE__->add_relevance_bump( subject => topic => first_word => 1 );
383 __PACKAGE__->add_relevance_bump( subject => topic => full_match => 1 );
385 __PACKAGE__->add_search_field_id_map( subject => complete => 16 => 1 );
386 __PACKAGE__->add_relevance_bump( subject => complete => first_word => 1 );
387 __PACKAGE__->add_relevance_bump( subject => complete => full_match => 1 );
389 __PACKAGE__->add_search_field_id_map( keyword => keyword => 15 => 1 );
390 __PACKAGE__->add_relevance_bump( keyword => keyword => first_word => 1 );
391 __PACKAGE__->add_relevance_bump( keyword => keyword => full_match => 1 );
394 __PACKAGE__->add_search_class_alias( keyword => 'kw' );
395 __PACKAGE__->add_search_class_alias( title => 'ti' );
396 __PACKAGE__->add_search_class_alias( author => 'au' );
397 __PACKAGE__->add_search_class_alias( author => 'name' );
398 __PACKAGE__->add_search_class_alias( author => 'dc.contributor' );
399 __PACKAGE__->add_search_class_alias( subject => 'su' );
400 __PACKAGE__->add_search_class_alias( subject => 'bib.subject(?:Title|Place|Occupation)' );
401 __PACKAGE__->add_search_class_alias( series => 'se' );
402 __PACKAGE__->add_search_class_alias( keyword => 'dc.identifier' );
404 __PACKAGE__->add_query_normalizer( author => corporate => 'naco_normalize' );
405 __PACKAGE__->add_query_normalizer( keyword => keyword => 'naco_normalize' );
407 __PACKAGE__->add_search_field_alias( subject => name => 'bib.subjectName' );
411 __PACKAGE__->default_search_class( 'keyword' );
413 # will be retained simply for back-compat
414 __PACKAGE__->add_search_filter( 'format' );
416 # grumble grumble, special cases against date1 and date2
417 __PACKAGE__->add_search_filter( 'before' );
418 __PACKAGE__->add_search_filter( 'after' );
419 __PACKAGE__->add_search_filter( 'between' );
420 __PACKAGE__->add_search_filter( 'during' );
422 # used by layers above this
423 __PACKAGE__->add_search_filter( 'statuses' );
424 __PACKAGE__->add_search_filter( 'locations' );
425 __PACKAGE__->add_search_filter( 'site' );
426 __PACKAGE__->add_search_filter( 'lasso' );
427 __PACKAGE__->add_search_filter( 'my_lasso' );
428 __PACKAGE__->add_search_filter( 'depth' );
429 __PACKAGE__->add_search_filter( 'language' );
430 __PACKAGE__->add_search_filter( 'offset' );
431 __PACKAGE__->add_search_filter( 'limit' );
432 __PACKAGE__->add_search_filter( 'check_limit' );
433 __PACKAGE__->add_search_filter( 'skip_check' );
434 __PACKAGE__->add_search_filter( 'superpage' );
435 __PACKAGE__->add_search_filter( 'superpage_size' );
436 __PACKAGE__->add_search_filter( 'estimation_strategy' );
437 __PACKAGE__->add_search_modifier( 'available' );
438 __PACKAGE__->add_search_modifier( 'staff' );
440 # used internally, but generally not user-settable
441 __PACKAGE__->add_search_filter( 'preferred_language' );
442 __PACKAGE__->add_search_filter( 'preferred_language_weight' );
443 __PACKAGE__->add_search_filter( 'preferred_language_multiplier' );
444 __PACKAGE__->add_search_filter( 'core_limit' );
446 # XXX Valid values to be supplied by SVF
447 __PACKAGE__->add_search_filter( 'sort' );
449 # modifies core query, not configurable
450 __PACKAGE__->add_search_modifier( 'descending' );
451 __PACKAGE__->add_search_modifier( 'ascending' );
452 __PACKAGE__->add_search_modifier( 'metarecord' );
453 __PACKAGE__->add_search_modifier( 'metabib' );
456 #-------------------------------
457 package OpenILS::Application::Storage::Driver::Pg::QueryParser::query_plan;
458 use base 'QueryParser::query_plan';
459 use OpenSRF::Utils::Logger qw($logger);
466 my ($format) = $self->find_filter('format');
468 my ($t,$f) = split('-', $format->args->[0]);
469 $self->new_filter( item_type => [ split '', $t ] ) if ($t);
470 $self->new_filter( item_form => [ split '', $f ] ) if ($f);
473 for my $f ( qw/preferred_language preferred_language_multiplier preferred_language_weight core_limit check_limit skip_check superpage superpage_size/ ) {
475 $col = 'preferred_language_multiplier' if ($f eq 'preferred_language_weight');
476 my ($filter) = $self->find_filter($f);
477 if ($filter and @{$filter->args}) {
478 $filters{$col} = $filter->args->[0];
482 $self->QueryParser->superpage($filters{superpage}) if ($filters{superpage});
483 $self->QueryParser->superpage_size($filters{superpage_size}) if ($filters{superpage_size});
484 $self->QueryParser->core_limit($filters{core_limit}) if ($filters{core_limit});
486 $logger->debug("Query plan:\n".Dumper($self));
488 my $flat_plan = $self->flatten;
490 # generate the relevance ranking
491 my $rel = "AVG(\n\t\t(" . join(")+\n\t\t(", @{$$flat_plan{rank_list}}) . ")\n\t)";
493 # find any supplied sort option
494 my ($sort_filter) = $self->find_filter('sort');
496 $sort_filter = $sort_filter->args->[0];
498 $sort_filter = 'rel';
501 if (($filters{preferred_language} || $self->QueryParser->default_preferred_language) && ($filters{preferred_language_multiplier} || $self->QueryParser->default_preferred_language_multiplier)) {
502 my $pl = $self->QueryParser->quote_value( $filters{preferred_language} ? $filters{preferred_language} : $self->QueryParser->default_preferred_language );
503 my $plw = $filters{preferred_language_multiplier} ? $filters{preferred_language_multiplier} : $self->QueryParser->default_preferred_language_multiplier;
504 $rel = "($rel * COALESCE( NULLIF( FIRST(mrd.attrs \@> hstore('item_lang', $pl)), FALSE )::INT * $plw, 1))";
506 $rel = "1.0/($rel)::NUMERIC";
508 my %dyn_filters = ( '' => [] ); # the "catch-all" key
509 for my $f ( @{ $self->QueryParser->dynamic_filters } ) {
511 $col = 'item_lang' if ($f eq 'language'); #XXX filter aliases would address this ... booo ... later
513 my ($filter) = $self->find_filter($f);
515 my @fargs = @{$filter->args};
517 if (@fargs > 1 || $filter->negate) {
518 my $NOT = $filter->negate ? 'NOT' : '';
519 $dyn_filters{$f} = "$NOT( " .
522 map { "mrd.attrs \@> hstore('$col', " . $self->QueryParser->quote_value($_) . ")" } @fargs
526 push(@{$dyn_filters{''}}, "hstore('$col', " . $self->QueryParser->quote_value($fargs[0]) . ")");
531 my $combined_dyn_filters = '';
532 $combined_dyn_filters .= 'AND mrd.attrs @> (' . join(' || ', @{$dyn_filters{''}}) . ') ' if (@{$dyn_filters{''}});
533 delete($dyn_filters{''});
535 my @dyn_filter_list = values(%dyn_filters);
536 $combined_dyn_filters .= 'AND ' . join(' AND ', @dyn_filter_list) if (@dyn_filter_list);
541 $desc = 'DESC' if ($self->find_modifier('descending'));
543 if (grep {$_ eq $sort_filter} @{$self->QueryParser->dynamic_sorters}) {
544 $rank = "FIRST(mrd.attrs->'$sort_filter')"
545 } elsif ($sort_filter eq 'create_date') {
546 $rank = "FIRST((SELECT create_date FROM biblio.record_entry rbr WHERE rbr.id = m.source))";
547 } elsif ($sort_filter eq 'edit_date') {
548 $rank = "FIRST((SELECT edit_date FROM biblio.record_entry rbr WHERE rbr.id = m.source))";
550 # default to rel ranking
554 my $key = 'm.source';
555 $key = 'm.metarecord' if (grep {$_->name eq 'metarecord' or $_->name eq 'metabib'} @{$self->modifiers});
557 my ($before) = $self->find_filter('before');
558 my ($after) = $self->find_filter('after');
559 my ($during) = $self->find_filter('during');
560 my ($between) = $self->find_filter('between');
562 if ($before and @{$before->args} == 1) {
563 $before = "AND (mrd.attrs->'date1') <= " . $self->QueryParser->quote_value($before->args->[0]);
568 if ($after and @{$after->args} == 1) {
569 $after = "AND (mrd.attrs->'date1') >= " . $self->QueryParser->quote_value($after->args->[0]);
574 if ($during and @{$during->args} == 1) {
575 $during = "AND " . $self->QueryParser->quote_value($during->args->[0]) . " BETWEEN (mrd.attrs->'date1') AND (mrd.attrs->'date2')";
580 if ($between and @{$between->args} == 2) {
581 $between = "AND (mrd.attrs->'date1') BETWEEN " . $self->QueryParser->quote_value($between->args->[0]) . " AND " . $self->QueryParser->quote_value($between->args->[1]);
586 my $core_limit = $self->QueryParser->core_limit || 25000;
590 ARRAY_ACCUM(DISTINCT m.source) AS records,
593 FIRST(mrd.attrs->'date1') AS tie_break
594 FROM metabib.metarecord_source_map m
595 JOIN metabib.record_attr mrd ON (m.source = mrd.id)
602 $combined_dyn_filters
603 AND $$flat_plan{where}
605 ORDER BY 4 $desc NULLS LAST, 5 DESC NULLS LAST, 3 DESC
609 warn $sql if $self->QueryParser->debug;
619 my $multiplier = shift;
621 my $only_atoms = $node->only_atoms;
622 return '' if (!@$only_atoms);
624 if ($bump eq 'first_word') {
625 return " /* first_word */ COALESCE(NULLIF( (naco_normalize(".$node->table_alias.".value) ~ ('^'||naco_normalize(".$self->QueryParser->quote_value($only_atoms->[0]->content)."))), FALSE )::INT * $multiplier, 1)";
626 } elsif ($bump eq 'full_match') {
627 return " /* full_match */ COALESCE(NULLIF( (naco_normalize(".$node->table_alias.".value) ~ ('^'||".
628 join( "||' '||", map { "naco_normalize(".$self->QueryParser->quote_value($_->content).")" } @$only_atoms )."||'\$')), FALSE )::INT * $multiplier, 1)";
629 } elsif ($bump eq 'word_order') {
630 return " /* word_order */ COALESCE(NULLIF( (naco_normalize(".$node->table_alias.".value) ~ (".
631 join( "||'.*'||", map { "naco_normalize(".$self->QueryParser->quote_value($_->content).")" } @$only_atoms ).")), FALSE )::INT * $multiplier, 1)";
640 my $from = shift || '';
641 my $where = shift || '(';
644 for my $node ( @{$self->query_nodes} ) {
646 if ($node->isa( 'QueryParser::query_plan::node' )) {
648 unless (@{$node->only_atoms}) {
649 push @rank_list, '1';
654 my $table = $node->table;
655 my $talias = $node->table_alias;
657 my $node_rank = $node->rank . " * ${talias}.weight";
659 my $core_limit = $self->QueryParser->core_limit || 25000;
660 $from .= "\n\tLEFT JOIN (\n\t\tSELECT fe.*, fe_weight.weight, x.tsq /* search */\n\t\t FROM $table AS fe";
661 $from .= "\n\t\t\tJOIN config.metabib_field AS fe_weight ON (fe_weight.id = fe.field)";
662 $from .= "\n\t\t\tJOIN (SELECT ".$node->tsquery ." AS tsq ) AS x ON (fe.index_vector @@ x.tsq)";
665 if (@{$node->fields} > 0) {
666 @bump_fields = @{$node->fields};
669 push(@field_ids, $self->QueryParser->search_field_ids_by_class( $node->classname, $_ )->[0]) for (@bump_fields);
670 $from .= "\n\t\t\tWHERE fe_weight.id IN (". join(',', @field_ids) .")";
673 @bump_fields = @{$self->QueryParser->search_fields->{$node->classname}};
676 ###$from .= "\n\t\tLIMIT $core_limit";
677 $from .= "\n\t) AS $talias ON (m.source = ${talias}.source)";
681 for my $field ( @bump_fields ) {
682 my $bumps = $self->QueryParser->find_relevance_bumps( $node->classname => $field );
683 for my $b (keys %$bumps) {
684 next if (!$$bumps{$b}{active});
685 next if ($used_bumps{$b});
688 next if ($$bumps{$b}{multiplier} == 1); # optimization to remove unneeded bumps
690 my $bump_case = $self->rel_bump( $node, $b, $$bumps{$b}{multiplier} );
691 $node_rank .= "\n\t\t\t\t * " . $bump_case if ($bump_case);
695 $where .= '(' . $talias . ".id IS NOT NULL";
696 $where .= ' AND ' . join(' AND ', map {"${talias}.value ~* ".$self->QueryParser->quote_phrase_value($_)} @{$node->phrases}) if (@{$node->phrases});
699 push @rank_list, $node_rank;
701 } elsif ($node->isa( 'QueryParser::query_plan::facet' )) {
703 my $table = $node->table;
704 my $talias = $node->table_alias;
707 if (@{$node->fields} > 0) {
708 push(@field_ids, $self->QueryParser->facet_field_ids_by_class( $node->classname, $_ )->[0]) for (@{$node->fields});
710 @field_ids = @{ $self->QueryParser->facet_field_ids_by_class( $node->classname ) };
713 my $join_type = $node->negate ? 'LEFT' : 'INNER';
714 $from .= "\n\t$join_type JOIN /* facet */ metabib.facet_entry $talias ON (\n\t\tm.source = ${talias}.source\n\t\t".
715 "AND SUBSTRING(${talias}.value,1,1024) IN (" . join(",", map { $self->QueryParser->quote_value($_) } @{$node->values}) . ")\n\t\t".
716 "AND ${talias}.field IN (". join(',', @field_ids) . ")\n\t)";
718 $where .= $node->negate ? "${talias}.id IS NULL" : 'TRUE';
721 my $subnode = $node->flatten;
723 push(@rank_list, @{$$subnode{rank_list}});
724 $from .= $$subnode{from};
725 $where .= "($$subnode{where})";
728 $where .= ' AND ' if ($node eq '&');
729 $where .= ' OR ' if ($node eq '|');
730 # ... stitching the WHERE together ...
734 return { rank_list => \@rank_list, from => $from, where => $where.')' };
739 #-------------------------------
740 package OpenILS::Application::Storage::Driver::Pg::QueryParser::query_plan::filter;
741 use base 'QueryParser::query_plan::filter';
743 #-------------------------------
744 package OpenILS::Application::Storage::Driver::Pg::QueryParser::query_plan::facet;
745 use base 'QueryParser::query_plan::facet';
749 my ($classname) = split '\|', $self->name;
755 return 'metabib.' . $self->classname . '_field_entry';
760 my ($classname,@fields) = split '\|', $self->name;
767 my $table_alias = "$self";
768 $table_alias =~ s/^.*\(0(x[0-9a-fA-F]+)\)$/$1/go;
769 $table_alias .= '_' . $self->name;
770 $table_alias =~ s/\|/_/go;
776 #-------------------------------
777 package OpenILS::Application::Storage::Driver::Pg::QueryParser::query_plan::modifier;
778 use base 'QueryParser::query_plan::modifier';
780 #-------------------------------
781 package OpenILS::Application::Storage::Driver::Pg::QueryParser::query_plan::node::atom;
782 use base 'QueryParser::query_plan::node::atom';
788 $self->{sql} = $sql if ($sql);
790 return $self->{sql} if ($self->{sql});
791 return $self->buildSQL;
797 my $classname = $self->node->classname;
799 my $normalizers = $self->node->plan->QueryParser->query_normalizers( $classname );
800 my $fields = $self->node->fields;
802 $fields = $self->node->plan->QueryParser->search_fields->{$classname} if (!@$fields);
806 for my $field (@$fields) {
807 for my $nfield (keys %$normalizers) {
808 for my $nizer ( @{$$normalizers{$nfield}} ) {
809 if ($field eq $nfield) {
810 my $param_string = OpenSRF::Utils::JSON->perl2JSON($nizer->{params});
811 if (!exists($norms{$nizer->{function}.$param_string})) {
812 $norms{$nizer->{function}.$param_string} = {p=>$pos++,n=>$nizer};
819 my $sql = $self->node->plan->QueryParser->quote_value($self->content);
821 for my $n ( map { $$_{n} } sort { $$a{p} <=> $$b{p} } values %norms ) {
822 $sql = join(', ', $sql, map { $self->node->plan->QueryParser->quote_value($_) } @{ $n->{params} });
823 $sql = $n->{function}."($sql)";
826 my $prefix = $self->prefix || '';
827 my $suffix = $self->suffix || '';
829 $prefix = "'$prefix' ||" if $prefix;
830 my $suffix_op = ":$suffix" if $suffix;
831 my $suffix_after = "|| '$suffix_op'" if $suffix;
833 $sql = "to_tsquery('$classname', COALESCE(NULLIF($prefix '(' || btrim(regexp_replace($sql,E'(?:\\\\s+|:)','$suffix_op&','g'),'&|') $suffix_after || ')', '()'), ''))";
835 return $self->sql($sql);
838 #-------------------------------
839 package OpenILS::Application::Storage::Driver::Pg::QueryParser::query_plan::node;
840 use base 'QueryParser::query_plan::node';
845 my $atoms = $self->query_atoms;
847 for my $a (@$atoms) {
848 push(@only_atoms, $a) if (ref($a) && $a->isa('QueryParser::query_plan::node::atom'));
857 $self->{table} = $table if ($table);
858 return $self->{table} if $self->{table};
859 return $self->table( 'metabib.' . $self->classname . '_field_entry' );
864 my $table_alias = shift;
865 $self->{table_alias} = $table_alias if ($table_alias);
866 return $self->{table_alias} if ($self->{table_alias});
868 $table_alias = "$self";
869 $table_alias =~ s/^.*\(0(x[0-9a-fA-F]+)\)$/$1/go;
870 $table_alias .= '_' . $self->requested_class;
871 $table_alias =~ s/\|/_/go;
873 return $self->table_alias( $table_alias );
878 return $self->{tsquery} if ($self->{tsquery});
880 for my $atom (@{$self->query_atoms}) {
882 $self->{tsquery} .= "\n\t\t\t" .$atom->sql;
884 $self->{tsquery} .= $atom x 2;
888 return $self->{tsquery};
894 my $rank_norm_map = $self->plan->QueryParser->custom_data->{rank_cd_weight_map};
896 my $cover_density = 0;
897 for my $norm ( keys %$rank_norm_map) {
898 $cover_density += $$rank_norm_map{$norm} if ($self->plan->find_modifier($norm));
901 return $self->{rank} if ($self->{rank});
902 return $self->{rank} = 'ts_rank_cd(' . $self->table_alias . '.index_vector, ' . $self->table_alias . ".tsq, $cover_density)";