4 package OpenILS::Application::Storage::Driver::Pg::QueryParser;
5 use OpenILS::Application::Storage::QueryParser;
6 use base 'QueryParser';
7 use OpenSRF::Utils qw/:datetime/;
8 use OpenSRF::Utils::JSON;
9 use OpenILS::Application::AppUtils;
10 use OpenILS::Utils::CStoreEditor;
11 my $U = 'OpenILS::Application::AppUtils';
14 sub subquery_callback {
15 my ($invocant, $self, $struct, $filter, $params, $negate) = @_;
17 return sprintf(' ((%s)) ',
23 OpenILS::Utils::CStoreEditor
25 ->search_actor_search_query({ id => $params })
31 sub filter_group_entry_callback {
32 my ($invocant, $self, $struct, $filter, $params, $negate) = @_;
34 return sprintf(' saved_query(%s)',
40 OpenILS::Utils::CStoreEditor
42 ->search_actor_search_filter_group_entry({ id => $params })
49 my ($invocant, $self, $struct, $filter, $params, $negate) = @_;
52 my $negate_flag = ($negate ? '-' : '');
54 for my $param (@$params) {
55 my ($t,$f) = split('-', $param);
57 $treturn .= 'item_type(' . join(',',split('', $t)) . ')' if ($t);
58 $treturn .= ' ' if ($t and $f);
59 $treturn .= 'item_form(' . join(',',split('', $f)) . ')' if ($f);
60 $treturn = '(' . $treturn . ')' if ($t and $f);
61 push(@returns, $treturn) if $treturn;
63 $return = join(' || ', @returns);
64 $return = '(' . $return . ')' if(@returns > 1);
65 $return = $negate_flag.$return if($return);
73 if ($value =~ /^\d/) { # may have to use non-$ quoting
75 $value =~ s/\\/\\\\/g;
78 return "\$_$$\$$value\$_$$\$";
81 sub quote_phrase_value {
86 my $left_anchored = '';
87 my $right_anchored = '';
88 $left_anchored = $1 if $value =~ m/^([*\^])/;
89 $right_anchored = $1 if $value =~ m/([*\$])$/;
90 $value =~ s/^[*\^]// if $left_anchored;
91 $value =~ s/[*\$]$// if $right_anchored;
92 $value = quotemeta($value);
93 $value = '^' . $value if $left_anchored eq '^';
94 $value = "$value\$" if $right_anchored eq '$';
95 $value = '[[:<:]]' . $value if $wb && !$left_anchored;
96 $value .= '[[:>:]]' if $wb && !$right_anchored;
97 return $self->quote_value($value);
104 sub default_preferred_language {
108 $self->custom_data->{default_preferred_language} = $lang if ($lang);
109 return $self->custom_data->{default_preferred_language};
112 sub default_preferred_language_multiplier {
116 $self->custom_data->{default_preferred_language_multiplier} = $lang if ($lang);
117 return $self->custom_data->{default_preferred_language_multiplier};
123 return 0 unless $self->parse_tree;
124 return 0 if @{$self->parse_tree->filters};
125 return 0 if @{$self->parse_tree->modifiers};
126 for my $node ( @{ $self->parse_tree->query_nodes } ) {
127 return 0 if (!ref($node) && $node eq '|');
128 next unless (ref($node));
129 return 0 if ($node->isa('QueryParser::query_plan'));
137 return $self->parse_tree->toSQL;
140 sub dynamic_filters {
144 $self->custom_data->{dynamic_filters} ||= [];
145 push(@{$self->custom_data->{dynamic_filters}}, $new) if ($new);
146 return $self->custom_data->{dynamic_filters};
149 sub dynamic_sorters {
153 $self->custom_data->{dynamic_sorters} ||= [];
154 push(@{$self->custom_data->{dynamic_sorters}}, $new) if ($new);
155 return $self->custom_data->{dynamic_sorters};
158 sub facet_field_id_map {
162 $self->custom_data->{facet_field_id_map} ||= {};
163 $self->custom_data->{facet_field_id_map} = $map if ($map);
164 return $self->custom_data->{facet_field_id_map};
167 sub add_facet_field_id_map {
174 $self->add_facet_field( $class => $field );
175 $self->facet_field_id_map->{by_id}{$id} = { classname => $class, field => $field, weight => $weight };
176 $self->facet_field_id_map->{by_class}{$class}{$field} = $id;
179 by_id => { $id => { classname => $class, field => $field, weight => $weight } },
180 by_class => { $class => { $field => $id } }
184 sub facet_field_class_by_id {
188 return $self->facet_field_id_map->{by_id}{$id};
191 sub facet_field_ids_by_class {
196 return undef unless ($class);
199 return [$self->facet_field_id_map->{by_class}{$class}{$field}];
202 return [values( %{ $self->facet_field_id_map->{by_class}{$class} } )];
205 sub search_field_id_map {
209 $self->custom_data->{search_field_id_map} ||= {};
210 $self->custom_data->{search_field_id_map} = $map if ($map);
211 return $self->custom_data->{search_field_id_map};
214 sub add_search_field_id_map {
221 $self->add_search_field( $class => $field );
222 $self->search_field_id_map->{by_id}{$id} = { classname => $class, field => $field, weight => $weight };
223 $self->search_field_id_map->{by_class}{$class}{$field} = $id;
226 by_id => { $id => { classname => $class, field => $field, weight => $weight } },
227 by_class => { $class => { $field => $id } }
231 sub search_field_class_by_id {
235 return $self->search_field_id_map->{by_id}{$id};
238 sub search_field_ids_by_class {
243 return undef unless ($class);
246 return [$self->search_field_id_map->{by_class}{$class}{$field}];
249 return [values( %{ $self->search_field_id_map->{by_class}{$class} } )];
252 sub relevance_bumps {
256 $self->custom_data->{rel_bumps} ||= {};
257 $self->custom_data->{rel_bumps} = $bumps if ($bumps);
258 return $self->custom_data->{rel_bumps};
261 sub find_relevance_bumps {
266 return $self->relevance_bumps->{$class}{$field};
269 sub add_relevance_bump {
274 my $multiplier = shift;
277 if (defined($active) and $active eq 'f') {
283 $self->relevance_bumps->{$class}{$field}{$type} = { multiplier => $multiplier, active => $active };
285 return { $class => { $field => { $type => { multiplier => $multiplier, active => $active } } } };
288 sub search_class_weights {
291 my $a_weight = shift;
292 my $b_weight = shift;
293 my $c_weight = shift;
294 my $d_weight = shift;
296 $self->custom_data->{class_weights} ||= {};
297 # Note: This reverses the A-D order, putting D first, because that is how the call actually works in PG
298 $self->custom_data->{class_weights}->{$class} ||= [0.1, 0.2, 0.4, 1.0];
299 $self->custom_data->{class_weights}->{$class} = [$d_weight, $c_weight, $b_weight, $a_weight] if $a_weight;
300 return $self->custom_data->{class_weights}->{$class};
303 sub class_ts_config {
306 my $lang = shift || 'DEFAULT';
308 my $ts_config = shift;
310 $self->custom_data->{class_ts_config} ||= {};
311 $self->custom_data->{class_ts_config}->{$class} ||= {};
312 $self->custom_data->{class_ts_config}->{$class}->{$lang} ||= {};
313 $self->custom_data->{class_ts_config}->{$class}->{$lang}->{normal} ||= [];
314 $self->custom_data->{class_ts_config}->{$class}->{$lang}->{always} ||= [];
315 $self->custom_data->{class_ts_config}->{$class}->{'DEFAULT'} ||= {};
316 $self->custom_data->{class_ts_config}->{$class}->{'DEFAULT'}->{normal} ||= [];
317 $self->custom_data->{class_ts_config}->{$class}->{'DEFAULT'}->{always} ||= [];
320 push @{$self->custom_data->{class_ts_config}->{$class}->{$lang}->{normal}}, $ts_config unless $always;
321 push @{$self->custom_data->{class_ts_config}->{$class}->{$lang}->{always}}, $ts_config if $always;
325 push @$return, @{$self->custom_data->{class_ts_config}->{$class}->{$lang}->{always}};
326 push @$return, @{$self->custom_data->{class_ts_config}->{$class}->{$lang}->{normal}} unless $always;
327 if($lang ne 'DEFAULT') {
328 push @$return, @{$self->custom_data->{class_ts_config}->{$class}->{'DEFAULT'}->{always}};
329 push @$return, @{$self->custom_data->{class_ts_config}->{$class}->{'DEFAULT'}->{normal}} unless $always;
334 sub field_ts_config {
338 my $lang = shift || 'DEFAULT';
339 my $ts_config = shift;
341 $self->custom_data->{field_ts_config} ||= {};
342 $self->custom_data->{field_ts_config}->{$class} ||= {};
343 $self->custom_data->{field_ts_config}->{$class}->{$field} ||= {};
344 $self->custom_data->{field_ts_config}->{$class}->{$field}->{$lang} ||= [];
345 $self->custom_data->{field_ts_config}->{$class}->{$field}->{'DEFAULT'} ||= [];
348 push @{$self->custom_data->{field_ts_config}->{$class}->{$field}->{$lang}}, $ts_config;
352 push @$return, @{$self->custom_data->{field_ts_config}->{$class}->{$field}->{$lang}};
353 if($lang ne 'DEFAULT') {
354 push @$return, @{$self->custom_data->{field_ts_config}->{$class}->{$field}->{'DEFAULT'}};
356 # Make it easy on us: Grab any "always" for the class here. If we have none we grab them all.
357 push @$return, @{$self->class_ts_config($class, $lang, scalar(@$return))};
361 sub initialize_search_field_id_map {
363 my $cmf_list = shift;
365 for my $cmf (@$cmf_list) {
366 __PACKAGE__->add_search_field_id_map( $cmf->field_class, $cmf->name, $cmf->id, $cmf->weight ) if ($U->is_true($cmf->search_field));
367 __PACKAGE__->add_facet_field_id_map( $cmf->field_class, $cmf->name, $cmf->id, $cmf->weight ) if ($U->is_true($cmf->facet_field));
370 return $self->search_field_id_map;
373 sub initialize_aliases {
375 my $cmsa_list = shift;
377 for my $cmsa (@$cmsa_list) {
379 __PACKAGE__->add_search_class_alias( $cmsa->field_class, $cmsa->alias );
381 my $c = $self->search_field_class_by_id( $cmsa->field );
382 __PACKAGE__->add_search_field_alias( $cmsa->field_class, $c->{field}, $cmsa->alias );
387 sub initialize_relevance_bumps {
389 my $sra_list = shift;
391 for my $sra (@$sra_list) {
392 my $c = $self->search_field_class_by_id( $sra->field );
393 __PACKAGE__->add_relevance_bump( $c->{classname}, $c->{field}, $sra->bump_type, $sra->multiplier, $sra->active );
396 return $self->relevance_bumps;
399 sub initialize_query_normalizers {
401 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" }] }
403 for my $cmfinm ( @$tree ) {
404 my $field_info = $self->search_field_class_by_id( $cmfinm->field );
405 __PACKAGE__->add_query_normalizer( $field_info->{classname}, $field_info->{field}, $cmfinm->norm->func, OpenSRF::Utils::JSON->JSON2perl($cmfinm->params) );
409 sub initialize_dynamic_filters {
411 my $list = shift; # open-ils.cstore.direct.config.record_attr_definition.search.atomic { "id" : { "!=" : null } }
413 for my $crad ( @$list ) {
414 __PACKAGE__->dynamic_filters( __PACKAGE__->add_search_filter( $crad->name ) ) if ($U->is_true($crad->filter));
415 __PACKAGE__->dynamic_sorters( $crad->name ) if ($U->is_true($crad->sorter));
419 sub initialize_filter_normalizers {
421 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" }] }
423 for my $crainm ( @$tree ) {
424 __PACKAGE__->add_filter_normalizer( $crainm->attr, $crainm->norm->func, OpenSRF::Utils::JSON->JSON2perl($crainm->params) );
428 sub initialize_class_weights {
432 for my $search_class (@$classes) {
433 __PACKAGE__->search_class_weights( $search_class->name, $search_class->a_weight, $search_class->b_weight, $search_class->c_weight, $search_class->d_weight );
437 sub initialize_class_ts_config {
439 my $class_entries = shift;
441 for my $search_class_entry (@$class_entries) {
442 __PACKAGE__->class_ts_config($search_class_entry->field_class,$search_class_entry->search_lang,$U->is_true($search_class_entry->always),$search_class_entry->ts_config);
446 sub initialize_field_ts_config {
448 my $field_entries = shift;
449 my $field_objects = shift;
450 my %field_hash = map { $_->id => $_ } @$field_objects;
452 for my $search_field_entry (@$field_entries) {
453 my $field_object = $field_hash{$search_field_entry->metabib_field};
454 __PACKAGE__->field_ts_config($field_object->field_class,$field_object->name,$search_field_entry->search_lang,$search_field_entry->ts_config);
459 sub initialization_complete {
467 return $_complete if ($_complete);
469 # tsearch rank normalization adjustments. see http://www.postgresql.org/docs/9.0/interactive/textsearch-controls.html#TEXTSEARCH-RANKING for details
470 $self->custom_data->{rank_cd_weight_map} = {
471 CD_logDocumentLength => 1,
472 CD_documentLength => 2,
473 CD_meanHarmonic => 4,
475 CD_logUniqueWords => 16,
479 $self->add_search_modifier( $_ ) for (keys %{ $self->custom_data->{rank_cd_weight_map} });
481 $self->initialize_search_field_id_map( $args{config_metabib_field} )
482 if ($args{config_metabib_field});
484 $self->initialize_aliases( $args{config_metabib_search_alias} )
485 if ($args{config_metabib_search_alias});
487 $self->initialize_relevance_bumps( $args{search_relevance_adjustment} )
488 if ($args{search_relevance_adjustment});
490 $self->initialize_query_normalizers( $args{config_metabib_field_index_norm_map} )
491 if ($args{config_metabib_field_index_norm_map});
493 $self->initialize_dynamic_filters( $args{config_record_attr_definition} )
494 if ($args{config_record_attr_definition});
496 $self->initialize_filter_normalizers( $args{config_record_attr_index_norm_map} )
497 if ($args{config_record_attr_index_norm_map});
499 $self->initialize_search_class_weights( $args{config_metabib_class} )
500 if ($args{config_metabib_class});
502 $self->initialize_class_ts_config( $args{config_metabib_class_ts_map} )
503 if ($args{config_metabib_class_ts_map});
505 $self->initialize_field_ts_config( $args{config_metabib_field_ts_map}, $args{config_metabib_field} )
506 if ($args{config_metabib_field_ts_map} && $args{config_metabib_field});
509 $args{config_metabib_field_index_norm_map} &&
510 $args{search_relevance_adjustment} &&
511 $args{config_metabib_search_alias} &&
512 $args{config_metabib_field} &&
513 $args{config_record_attr_definition}
521 __PACKAGE__->allow_nested_modifiers(1);
523 __PACKAGE__->add_search_field_id_map( series => seriestitle => 1 => 1 );
525 __PACKAGE__->add_search_field_id_map( series => seriestitle => 1 => 1 );
526 __PACKAGE__->add_relevance_bump( series => seriestitle => first_word => 1.5 );
527 __PACKAGE__->add_relevance_bump( series => seriestitle => full_match => 20 );
529 __PACKAGE__->add_search_field_id_map( title => abbreviated => 2 => 1 );
530 __PACKAGE__->add_relevance_bump( title => abbreviated => first_word => 1.5 );
531 __PACKAGE__->add_relevance_bump( title => abbreviated => full_match => 20 );
533 __PACKAGE__->add_search_field_id_map( title => translated => 3 => 1 );
534 __PACKAGE__->add_relevance_bump( title => translated => first_word => 1.5 );
535 __PACKAGE__->add_relevance_bump( title => translated => full_match => 20 );
537 __PACKAGE__->add_search_field_id_map( title => proper => 6 => 1 );
538 __PACKAGE__->add_query_normalizer( title => proper => 'search_normalize' );
539 __PACKAGE__->add_relevance_bump( title => proper => first_word => 1.5 );
540 __PACKAGE__->add_relevance_bump( title => proper => full_match => 20 );
541 __PACKAGE__->add_relevance_bump( title => proper => word_order => 10 );
543 __PACKAGE__->add_search_field_id_map( author => corporate => 7 => 1 );
544 __PACKAGE__->add_relevance_bump( author => corporate => first_word => 1.5 );
545 __PACKAGE__->add_relevance_bump( author => corporate => full_match => 20 );
547 __PACKAGE__->add_facet_field_id_map( author => personal => 8 => 1 );
549 __PACKAGE__->add_search_field_id_map( author => personal => 8 => 1 );
550 __PACKAGE__->add_relevance_bump( author => personal => first_word => 1.5 );
551 __PACKAGE__->add_relevance_bump( author => personal => full_match => 20 );
552 __PACKAGE__->add_query_normalizer( author => personal => 'search_normalize' );
553 __PACKAGE__->add_query_normalizer( author => personal => 'split_date_range' );
555 __PACKAGE__->add_facet_field_id_map( subject => topic => 14 => 1 );
557 __PACKAGE__->add_search_field_id_map( subject => topic => 14 => 1 );
558 __PACKAGE__->add_relevance_bump( subject => topic => first_word => 1 );
559 __PACKAGE__->add_relevance_bump( subject => topic => full_match => 1 );
561 __PACKAGE__->add_search_field_id_map( subject => complete => 16 => 1 );
562 __PACKAGE__->add_relevance_bump( subject => complete => first_word => 1 );
563 __PACKAGE__->add_relevance_bump( subject => complete => full_match => 1 );
565 __PACKAGE__->add_search_field_id_map( keyword => keyword => 15 => 1 );
566 __PACKAGE__->add_relevance_bump( keyword => keyword => first_word => 1 );
567 __PACKAGE__->add_relevance_bump( keyword => keyword => full_match => 1 );
569 __PACKAGE__->class_ts_config( 'series', undef, 1, 'english_nostop' );
570 __PACKAGE__->class_ts_config( 'title', undef, 1, 'english_nostop' );
571 __PACKAGE__->class_ts_config( 'author', undef, 1, 'english_nostop' );
572 __PACKAGE__->class_ts_config( 'subject', undef, 1, 'english_nostop' );
573 __PACKAGE__->class_ts_config( 'keyword', undef, 1, 'english_nostop' );
574 __PACKAGE__->class_ts_config( 'series', undef, 1, 'simple' );
575 __PACKAGE__->class_ts_config( 'title', undef, 1, 'simple' );
576 __PACKAGE__->class_ts_config( 'author', undef, 1, 'simple' );
577 __PACKAGE__->class_ts_config( 'subject', undef, 1, 'simple' );
578 __PACKAGE__->class_ts_config( 'keyword', undef, 1, 'simple' );
580 # French! To test language limiters
581 __PACKAGE__->class_ts_config( 'series', 'fre', 1, 'french_nostop' );
582 __PACKAGE__->class_ts_config( 'title', 'fre', 1, 'french_nostop' );
583 __PACKAGE__->class_ts_config( 'author', 'fre', 1, 'french_nostop' );
584 __PACKAGE__->class_ts_config( 'subject', 'fre', 1, 'french_nostop' );
585 __PACKAGE__->class_ts_config( 'keyword', 'fre', 1, 'french_nostop' );
587 # Not a default config by any means, but good for some testing
588 __PACKAGE__->field_ts_config( 'author', 'personal', 'eng', 'english' );
589 __PACKAGE__->field_ts_config( 'author', 'personal', 'fre', 'french' );
591 __PACKAGE__->add_search_class_alias( keyword => 'kw' );
592 __PACKAGE__->add_search_class_alias( title => 'ti' );
593 __PACKAGE__->add_search_class_alias( author => 'au' );
594 __PACKAGE__->add_search_class_alias( author => 'name' );
595 __PACKAGE__->add_search_class_alias( author => 'dc.contributor' );
596 __PACKAGE__->add_search_class_alias( subject => 'su' );
597 __PACKAGE__->add_search_class_alias( subject => 'bib.subject(?:Title|Place|Occupation)' );
598 __PACKAGE__->add_search_class_alias( series => 'se' );
599 __PACKAGE__->add_search_class_alias( keyword => 'dc.identifier' );
601 __PACKAGE__->add_query_normalizer( author => corporate => 'search_normalize' );
602 __PACKAGE__->add_query_normalizer( keyword => keyword => 'search_normalize' );
604 __PACKAGE__->add_search_field_alias( subject => name => 'bib.subjectName' );
608 __PACKAGE__->default_search_class( 'keyword' );
610 # implements EG-specific stored subqueries
611 __PACKAGE__->add_search_filter( 'saved_query', sub { return __PACKAGE__->subquery_callback(@_) } );
612 __PACKAGE__->add_search_filter( 'filter_group_entry', sub { return __PACKAGE__->filter_group_entry_callback(@_) } );
614 # will be retained simply for back-compat
615 __PACKAGE__->add_search_filter( 'format', sub { return __PACKAGE__->format_callback(@_) } );
617 # grumble grumble, special cases against date1 and date2
618 __PACKAGE__->add_search_filter( 'before' );
619 __PACKAGE__->add_search_filter( 'after' );
620 __PACKAGE__->add_search_filter( 'between' );
621 __PACKAGE__->add_search_filter( 'during' );
623 # various filters for limiting in various ways
624 __PACKAGE__->add_search_filter( 'edit_date' );
625 __PACKAGE__->add_search_filter( 'create_date' );
626 __PACKAGE__->add_search_filter( 'statuses' );
627 __PACKAGE__->add_search_filter( 'locations' );
628 __PACKAGE__->add_search_filter( 'location_groups' );
629 __PACKAGE__->add_search_filter( 'bib_source' );
630 __PACKAGE__->add_search_filter( 'site' );
631 __PACKAGE__->add_search_filter( 'pref_ou' );
632 __PACKAGE__->add_search_filter( 'lasso' );
633 __PACKAGE__->add_search_filter( 'my_lasso' );
634 __PACKAGE__->add_search_filter( 'depth' );
635 __PACKAGE__->add_search_filter( 'language' );
636 __PACKAGE__->add_search_filter( 'offset' );
637 __PACKAGE__->add_search_filter( 'limit' );
638 __PACKAGE__->add_search_filter( 'check_limit' );
639 __PACKAGE__->add_search_filter( 'skip_check' );
640 __PACKAGE__->add_search_filter( 'superpage' );
641 __PACKAGE__->add_search_filter( 'superpage_size' );
642 __PACKAGE__->add_search_filter( 'estimation_strategy' );
643 __PACKAGE__->add_search_modifier( 'available' );
644 __PACKAGE__->add_search_modifier( 'staff' );
645 __PACKAGE__->add_search_modifier( 'deleted' );
646 __PACKAGE__->add_search_modifier( 'lucky' );
648 # Start from container data (bre, acn, acp): container(bre,bookbag,123,deadb33fdeadb33fdeadb33fdeadb33f)
649 __PACKAGE__->add_search_filter( 'container' );
651 # Start from a list of record ids, either bre or metarecords, depending on the #metabib modifier
652 __PACKAGE__->add_search_filter( 'record_list' );
654 # used internally, but generally not user-settable
655 __PACKAGE__->add_search_filter( 'preferred_language' );
656 __PACKAGE__->add_search_filter( 'preferred_language_weight' );
657 __PACKAGE__->add_search_filter( 'preferred_language_multiplier' );
658 __PACKAGE__->add_search_filter( 'core_limit' );
660 # XXX Valid values to be supplied by SVF
661 __PACKAGE__->add_search_filter( 'sort' );
663 # modifies core query, not configurable
664 __PACKAGE__->add_search_modifier( 'descending' );
665 __PACKAGE__->add_search_modifier( 'ascending' );
666 __PACKAGE__->add_search_modifier( 'nullsfirst' );
667 __PACKAGE__->add_search_modifier( 'nullslast' );
668 __PACKAGE__->add_search_modifier( 'metarecord' );
669 __PACKAGE__->add_search_modifier( 'metabib' );
672 #-------------------------------
673 package OpenILS::Application::Storage::Driver::Pg::QueryParser::query_plan;
674 use base 'QueryParser::query_plan';
675 use OpenSRF::Utils::Logger qw($logger);
676 use OpenSRF::Utils qw/:datetime/;
678 use OpenILS::Application::AppUtils;
679 my $apputils = "OpenILS::Application::AppUtils";
687 for my $f ( qw/preferred_language preferred_language_multiplier preferred_language_weight core_limit check_limit skip_check superpage superpage_size/ ) {
689 $col = 'preferred_language_multiplier' if ($f eq 'preferred_language_weight');
690 my ($filter) = $self->find_filter($f);
691 if ($filter and @{$filter->args}) {
692 $filters{$col} = $filter->args->[0];
696 $self->QueryParser->superpage($filters{superpage}) if ($filters{superpage});
697 $self->QueryParser->superpage_size($filters{superpage_size}) if ($filters{superpage_size});
698 $self->QueryParser->core_limit($filters{core_limit}) if ($filters{core_limit});
700 $logger->debug("Query plan:\n".Dumper($self));
702 my $flat_plan = $self->flatten;
704 # generate the relevance ranking
705 my $rel = '1'; # Default to something simple in case rank_list is empty.
706 if (@{$$flat_plan{rank_list}}) {
709 . join(")\n" . ${spc} x 5 . "+ (", @{$$flat_plan{rank_list}})
711 . ${spc} x 4 . ")+1";
714 # find any supplied sort option
715 my ($sort_filter) = $self->find_filter('sort');
717 $sort_filter = $sort_filter->args->[0];
719 $sort_filter = 'rel';
722 if (($filters{preferred_language} || $self->QueryParser->default_preferred_language) && ($filters{preferred_language_multiplier} || $self->QueryParser->default_preferred_language_multiplier)) {
723 my $pl = $self->QueryParser->quote_value( $filters{preferred_language} ? $filters{preferred_language} : $self->QueryParser->default_preferred_language );
724 my $plw = $filters{preferred_language_multiplier} ? $filters{preferred_language_multiplier} : $self->QueryParser->default_preferred_language_multiplier;
725 $rel = "($rel * COALESCE( NULLIF( FIRST(mrd.attrs \@> hstore('item_lang', $pl)), FALSE )::INT * $plw, 1))";
727 $rel = "1.0/($rel)::NUMERIC";
729 my $mra_join = 'INNER JOIN metabib.record_attr mrd ON m.source = mrd.id';
734 $desc = 'DESC' if ($self->find_modifier('descending'));
736 my $nullpos = 'NULLS LAST';
737 $nullpos = 'NULLS FIRST' if ($self->find_modifier('nullsfirst'));
739 if (grep {$_ eq $sort_filter} @{$self->QueryParser->dynamic_sorters}) {
740 $rank = "FIRST(mrd.attrs->'$sort_filter')"
741 } elsif ($sort_filter eq 'create_date') {
742 $rank = "FIRST((SELECT create_date FROM biblio.record_entry rbr WHERE rbr.id = m.source))";
743 } elsif ($sort_filter eq 'edit_date') {
744 $rank = "FIRST((SELECT edit_date FROM biblio.record_entry rbr WHERE rbr.id = m.source))";
746 # default to rel ranking
750 my $key = 'm.source';
751 $key = 'm.metarecord' if (grep {$_->name eq 'metarecord' or $_->name eq 'metabib'} @{$self->modifiers});
753 my $core_limit = $self->QueryParser->core_limit || 25000;
754 $core_limit = 1 if($self->find_modifier('lucky'));
756 my $flat_where = $$flat_plan{where};
757 if ($flat_where ne '') {
758 $flat_where = "AND (\n" . ${spc} x 5 . $flat_where . "\n" . ${spc} x 4 . ")";
760 my $with = $$flat_plan{with};
761 $with= "\nWITH $with" if $with;
763 # Need an array for query parser db function; this gives a better plan
764 # than the ARRAY_AGG(DISTINCT m.source) option as of PostgreSQL 9.1
765 my $agg_records = 'ARRAY[m.source] AS records';
766 if ($key =~ /metarecord/) {
767 # metarecord searches still require the ARRAY_AGG approach
768 $agg_records = 'ARRAY_AGG(DISTINCT m.source) AS records';
777 FIRST(mrd.attrs->'date1') AS tie_break
778 FROM metabib.metarecord_source_map m
784 ORDER BY 4 $desc $nullpos, 5 DESC $nullpos, 3 DESC
788 warn $sql if $self->QueryParser->debug;
796 my $from = shift || '';
797 my $where = shift || '';
801 for my $node ( @{$self->query_nodes} ) {
804 if ($node->isa( 'QueryParser::query_plan::node' )) {
806 unless (@{$node->only_atoms}) {
807 push @rank_list, '1';
812 my $table = $node->table;
813 my $ctable = $node->combined_table;
814 my $talias = $node->table_alias;
816 my $node_rank = 'COALESCE(' . $node->rank . " * ${talias}.weight, 0.0)";
818 $from .= "\n" . ${spc} x 4 ."LEFT JOIN (\n"
819 . ${spc} x 5 . "SELECT fe.*, fe_weight.weight, ${talias}_xq.tsq, ${talias}_xq.tsq_rank /* search */\n"
820 . ${spc} x 6 . "FROM $table AS fe";
821 $from .= "\n" . ${spc} x 7 . "JOIN config.metabib_field AS fe_weight ON (fe_weight.id = fe.field)";
825 if (@{$node->fields} > 0) {
826 @bump_fields = @{$node->fields};
828 @field_ids = grep defined, (
830 $self->QueryParser->search_field_ids_by_class(
836 @bump_fields = @{$self->QueryParser->search_fields->{$node->classname}};
839 if ($node->dummy_count < @{$node->only_atoms} ) {
840 $with .= ",\n " if $with;
841 $with .= "${talias}_xq AS (SELECT ". $node->tsquery ." AS tsq,". $node->tsquery_rank ." AS tsq_rank )";
842 $from .= "\n" . ${spc} x 6 . "JOIN $ctable AS com ON (com.record = fe.source";
844 $from .= " AND com.metabib_field IN (" . join(',',@field_ids) . "))";
846 $from .= " AND com.metabib_field IS NULL)";
848 $from .= "\n" . ${spc} x 6 . "JOIN ${talias}_xq ON (com.index_vector @@ ${talias}_xq.tsq)";
850 $from .= "\n" . ${spc} x 6 . ", (SELECT NULL::tsquery AS tsq, NULL:tsquery AS tsq_rank ) AS ${talias}_xq";
854 $from .= "\n" . ${spc} x 6 . "WHERE fe_weight.id IN (" .
855 join(',', @field_ids) . ")";
858 $from .= "\n" . ${spc} x 4 . ") AS $talias ON (m.source = ${talias}.source)";
863 for my $field ( @bump_fields ) {
864 my $bumps = $self->QueryParser->find_relevance_bumps( $node->classname => $field );
865 for my $b (keys %$bumps) {
866 next if (!$$bumps{$b}{active});
867 next if ($used_bumps{$b});
870 next if ($$bumps{$b}{multiplier} == 1); # optimization to remove unneeded bumps
872 push @bumpmults, $$bumps{$b}{multiplier};
876 if(scalar @bumps > 0 && scalar @{$node->only_positive_atoms} > 0) {
877 # Note: Previous rank function used search_normalize outright. Duplicating that here.
878 $node_rank .= "\n" . ${spc} x 5 . "* evergreen.rel_bump(('{' || search_normalize(";
879 $node_rank .= join(") || ',' || search_normalize(",map { $self->QueryParser->quote_phrase_value($_->content) } @{$node->only_positive_atoms});
880 $node_rank .= ") || '}')::TEXT[], " . $node->table_alias . ".value, '{" . join(",",@bumps) . "}'::TEXT[], '{" . join(",",@bumpmults) . "}'::NUMERIC[])";
884 $NOT = 'NOT ' if $node->negate;
886 $where .= "$NOT(" . $talias . ".id IS NOT NULL";
887 if (@{$node->phrases}) {
888 $where .= ' AND ' . join(' AND ', map {
889 "${talias}.value ~* ".$self->QueryParser->quote_phrase_value($_, 1)
890 } @{$node->phrases});
892 for my $atom (@{$node->only_real_atoms}) {
893 next unless $atom->{content} && $atom->{content} =~ /(^\^|\$$)/;
894 $where .= " AND ${talias}.value ~* ".$self->QueryParser->quote_phrase_value($atom->{content});
899 push @rank_list, $node_rank;
901 } elsif ($node->isa( 'QueryParser::query_plan::facet' )) {
903 my $talias = $node->table_alias;
906 if (@{$node->fields} > 0) {
907 push(@field_ids, $self->QueryParser->facet_field_ids_by_class( $node->classname, $_ )->[0]) for (@{$node->fields});
909 @field_ids = @{ $self->QueryParser->facet_field_ids_by_class( $node->classname ) };
912 my $join_type = ($node->negate or !$self->top_plan) ? 'LEFT' : 'INNER';
913 $from .= "\n${spc}$join_type JOIN /* facet */ metabib.facet_entry $talias ON (\n"
914 . ${spc} x 2 . "m.source = ${talias}.source\n"
915 . ${spc} x 2 . "AND SUBSTRING(${talias}.value,1,1024) IN ("
916 . join(",", map { $self->QueryParser->quote_value($_) } @{$node->values}) . ")\n"
917 . ${spc} x 2 ."AND ${talias}.field IN (". join(',', @field_ids) . ")\n"
920 if ($join_type != 'INNER') {
921 my $NOT = $node->negate ? '' : ' NOT';
922 $where .= "${talias}.id IS$NOT NULL";
923 } elsif ($where ne '') {
925 $where =~ s/(\s|\n)+(AND|OR)\s$//;
929 my $subnode = $node->flatten;
931 # strip the trailing bool from the previous loop if there is
932 # nothing to add to the where within this loop.
933 if ($$subnode{where} eq '') {
934 $where =~ s/(\s|\n)+(AND|OR)\s$//;
937 push(@rank_list, @{$$subnode{rank_list}});
938 $from .= $$subnode{from};
941 $NOT = 'NOT ' if $node->negate;
943 if ($$subnode{where} ne '') {
945 . ${spc} x ($self->plan_level + 6) . $$subnode{where} . "\n"
946 . ${spc} x ($self->plan_level + 5) . ')';
949 if ($$subnode{with}) {
950 $with .= ",\n " if $with;
951 $with .= $$subnode{with};
956 warn "flatten(): appending WHERE bool to: $where\n" if $self->QueryParser->debug;
959 $where .= "\n" . ${spc} x ( $self->plan_level + 5 ) . 'AND ' if ($node eq '&');
960 $where .= "\n" . ${spc} x ( $self->plan_level + 5 ) . 'OR ' if ($node eq '|');
965 my $joiner = "\n" . ${spc} x ( $self->plan_level + 5 ) . ($self->joiner eq '&' ? 'AND ' : 'OR ');
966 # for each dynamic filter, build more of the WHERE clause
967 for my $filter (@{$self->filters}) {
968 my $NOT = $filter->negate ? 'NOT ' : '';
969 if (grep { $_ eq $filter->name } @{ $self->QueryParser->dynamic_filters }) {
971 warn "flatten(): processing dynamic filter ". $filter->name ."\n"
972 if $self->QueryParser->debug;
974 # bool joiner for intra-plan nodes/filters
975 $where .= $joiner if $where ne '';
977 my @fargs = @{$filter->args};
978 my $fname = $filter->name;
979 $fname = 'item_lang' if $fname eq 'language'; #XXX filter aliases
982 "${NOT}COALESCE((mrd.attrs->'%s') IN (%s), false)", $fname,
983 join(',', map { $self->QueryParser->quote_value($_) } @fargs)
986 warn "flatten(): filter where => $where\n"
987 if $self->QueryParser->debug;
989 if ($filter->name eq 'before') {
990 if (@{$filter->args} == 1) {
991 $where .= $joiner if $where ne '';
992 $where .= "${NOT}COALESCE((mrd.attrs->'date1') <= "
993 . $self->QueryParser->quote_value($filter->args->[0])
996 } elsif ($filter->name eq 'after') {
997 if (@{$filter->args} == 1) {
998 $where .= $joiner if $where ne '';
999 $where .= "${NOT}COALESCE((mrd.attrs->'date1') >= "
1000 . $self->QueryParser->quote_value($filter->args->[0])
1003 } elsif ($filter->name eq 'during') {
1004 if (@{$filter->args} == 1) {
1005 $where .= $joiner if $where ne '';
1006 $where .= "${NOT}COALESCE("
1007 . $self->QueryParser->quote_value($filter->args->[0])
1008 . " BETWEEN (mrd.attrs->'date1') AND (mrd.attrs->'date2'), false)";
1010 } elsif ($filter->name eq 'between') {
1011 if (@{$filter->args} == 2) {
1012 $where .= $joiner if $where ne '';
1013 $where .= "${NOT}COALESCE((mrd.attrs->'date1') BETWEEN "
1014 . $self->QueryParser->quote_value($filter->args->[0])
1016 . $self->QueryParser->quote_value($filter->args->[1])
1019 } elsif ($filter->name eq 'container') {
1020 if (@{$filter->args} >= 3) {
1021 my ($class, $ctype, $cid, $token) = @{$filter->args};
1024 my $rec_field = 'ci.target_biblio_record_entry';
1025 if ($class eq 'bre') {
1026 $class = 'biblio_record_entry';
1027 } elsif ($class eq 'acn') {
1028 $class = 'call_number';
1029 $rec_field = 'cn.record';
1030 $rec_join = 'JOIN asset.call_number cn ON (ci.target_call_number = cn.id)';
1031 } elsif ($class eq 'acp') {
1033 $rec_field = 'cn.record';
1034 $rec_join = 'JOIN asset.copy cp ON (ci.target_copy = cp.id) JOIN asset.call_number cn ON (cp.call_number = cn.id)';
1040 my ($u,$e) = $apputils->checksesperm($token) if ($token);
1041 $perm_join = ' OR c.owner = ' . $u->id if ($u && !$e);
1043 my $filter_alias = "$filter";
1044 $filter_alias =~ s/^.*\(0(x[0-9a-fA-F]+)\)$/$1/go;
1045 $filter_alias =~ s/\|/_/go;
1047 $with .= ",\n " if $with;
1048 $with .= "container_${filter_alias} AS (\n";
1049 $with .= " SELECT $rec_field AS record FROM container.${class}_bucket_item ci\n"
1050 . " JOIN container.${class}_bucket c ON (c.id = ci.bucket) $rec_join\n"
1051 . " WHERE c.btype = " . $self->QueryParser->quote_value($ctype) . "\n"
1052 . " AND c.id = " . $self->QueryParser->quote_value($cid) . "\n"
1053 . " AND (c.pub IS TRUE$perm_join)\n";
1054 if ($class eq 'copy') {
1056 . " SELECT pr.peer_record AS record FROM container.copy_bucket_item ci\n"
1057 . " JOIN container.copy_bucket c ON (c.id = ci.bucket)\n"
1058 . " JOIN biblio.peer_bib_copy_map pr ON ci.target_copy = pr.target_copy\n"
1059 . " WHERE c.btype = " . $self->QueryParser->quote_value($ctype) . "\n"
1060 . " AND c.id = " . $self->QueryParser->quote_value($cid) . "\n"
1061 . " AND (c.pub IS TRUE$perm_join)\n";
1065 $from .= "\n" . ${spc} x 3 . "LEFT JOIN container_${filter_alias} ON container_${filter_alias}.record = m.source";
1067 my $spcdepth = $self->plan_level + 5;
1069 $where .= $joiner if $where ne '';
1070 $where .= "${NOT}(container_${filter_alias} IS NOT NULL)";
1073 } elsif ($filter->name eq 'record_list') {
1074 if (@{$filter->args} > 0) {
1075 my $key = 'm.source';
1076 $key = 'm.metarecord' if (grep {$_->name eq 'metarecord' or $_->name eq 'metabib'} @{$self->QueryParser->parse_tree->modifiers});
1077 $where .= $joiner if $where ne '';
1078 $where .= "$key ${NOT}IN (" . join(',', map { $self->QueryParser->quote_value($_) } @{$filter->args}) . ')';
1081 } elsif ($filter->name eq 'edit_date' or $filter->name eq 'create_date') {
1082 # bre.create_date and bre.edit_date filtering
1083 my $datefilter = $filter->name;
1085 if ($filter && $filter->args && scalar(@{$filter->args}) > 0 && scalar(@{$filter->args}) < 3) {
1086 my ($cstart, $cend) = @{$filter->args};
1088 if (!$cstart and !$cend) {
1089 # useless use of filter
1090 } elsif (!$cstart or $cstart eq '-infinity') { # no start supplied
1091 if ($cend eq 'infinity') {
1092 # useless use of filter
1095 $cend = cleanse_ISO8601($cend);
1096 $where .= $joiner if $where ne '';
1097 $where .= "bre.$datefilter <= \$_$$\$$cend\$_$$\$";
1100 } elsif (!$cend or $cend eq 'infinity') { # no end supplied
1101 if ($cstart eq '-infinity') {
1102 # useless use of filter
1103 } else { # "after $cstart"
1104 $cstart = cleanse_ISO8601($cstart);
1105 $where .= $joiner if $where ne '';
1106 $where .= "bre.$datefilter >= \$_$$\$$cstart\$_$$\$";
1108 } else { # both supplied
1109 # "between $cstart and $cend"
1110 $cstart = cleanse_ISO8601($cstart);
1111 $cend = cleanse_ISO8601($cend);
1112 $where .= $joiner if $where ne '';
1113 $where .= "bre.$datefilter BETWEEN \$_$$\$$cstart\$_$$\$ AND \$_$$\$$cend\$_$$\$";
1116 } elsif ($filter->name eq 'bib_source') {
1117 if (@{$filter->args} > 0) {
1118 $where .= $joiner if $where ne '';
1119 $where .= "${NOT}COALESCE(bre.source IN ("
1120 . join(',', map { $self->QueryParser->quote_value($_) } @{ $filter->args })
1126 warn "flatten(): full filter where => $where\n" if $self->QueryParser->debug;
1128 return { rank_list => \@rank_list, from => $from, where => $where, with => $with };
1132 #-------------------------------
1133 package OpenILS::Application::Storage::Driver::Pg::QueryParser::query_plan::filter;
1134 use base 'QueryParser::query_plan::filter';
1136 #-------------------------------
1137 package OpenILS::Application::Storage::Driver::Pg::QueryParser::query_plan::facet;
1138 use base 'QueryParser::query_plan::facet';
1142 my ($classname) = split '\|', $self->name;
1148 my ($classname,@fields) = split '\|', $self->name;
1155 my $table_alias = "$self";
1156 $table_alias =~ s/^.*\(0(x[0-9a-fA-F]+)\)$/$1/go;
1157 $table_alias .= '_' . $self->name;
1158 $table_alias =~ s/\|/_/go;
1160 return $table_alias;
1164 #-------------------------------
1165 package OpenILS::Application::Storage::Driver::Pg::QueryParser::query_plan::modifier;
1166 use base 'QueryParser::query_plan::modifier';
1168 #-------------------------------
1169 package OpenILS::Application::Storage::Driver::Pg::QueryParser::query_plan::node::atom;
1170 use base 'QueryParser::query_plan::node::atom';
1176 $self->{sql} = $sql if ($sql);
1178 return $self->{sql} if ($self->{sql});
1179 return $self->buildSQL;
1185 my $classname = $self->node->classname;
1187 return $self->sql("to_tsquery('$classname','')") if $self->{dummy};
1189 my $normalizers = $self->node->plan->QueryParser->query_normalizers( $classname );
1190 my $fields = $self->node->fields;
1193 my $filter = $self->node->plan->find_filter('preferred_language');
1194 $lang ||= $filter->args->[0] if ($filter && $filter->args);
1195 $lang ||= $self->node->plan->QueryParser->default_preferred_language;
1196 my $ts_configs = [];
1198 if (@{$self->node->phrases}) {
1199 # We assume we want 'simple' for phrases. Gives us less to match against later.
1200 $ts_configs = ['simple'];
1203 $ts_configs = $self->node->plan->QueryParser->class_ts_config($classname, $lang);
1205 for my $field (@$fields) {
1206 push @$ts_configs, @{$self->node->plan->QueryParser->field_ts_config($classname, $field, $lang)};
1209 $ts_configs = [keys %{{map { $_ => 1 } @$ts_configs}}];
1212 # Assume we want exact if none otherwise provided.
1213 # Because we can reasonably expect this to exist
1214 $ts_configs = ['simple'] unless (scalar @$ts_configs);
1216 $fields = $self->node->plan->QueryParser->search_fields->{$classname} if (!@$fields);
1220 for my $field (@$fields) {
1221 for my $nfield (keys %$normalizers) {
1222 for my $nizer ( @{$$normalizers{$nfield}} ) {
1223 if ($field eq $nfield) {
1224 my $param_string = OpenSRF::Utils::JSON->perl2JSON($nizer->{params});
1225 if (!exists($norms{$nizer->{function}.$param_string})) {
1226 $norms{$nizer->{function}.$param_string} = {p=>$pos++,n=>$nizer};
1233 my $sql = $self->node->plan->QueryParser->quote_value($self->content);
1235 for my $n ( map { $$_{n} } sort { $$a{p} <=> $$b{p} } values %norms ) {
1236 $sql = join(', ', $sql, map { $self->node->plan->QueryParser->quote_value($_) } @{ $n->{params} });
1237 $sql = $n->{function}."($sql)";
1240 my $prefix = $self->prefix || '';
1241 my $suffix = $self->suffix || '';
1242 my $joiner = ' || ';
1243 $joiner = ' && ' if $self->prefix eq '!'; # Negative atoms should be "none of the variants" instead of "any of the variants"
1245 $prefix = "'$prefix' ||" if $prefix;
1247 my $suffix_after = '';
1249 $suffix_op = ":$suffix" if $suffix;
1250 $suffix_after = "|| '$suffix_op'" if $suffix;
1253 for my $ts_config (@$ts_configs) {
1254 push @sql_set, "to_tsquery('$ts_config', COALESCE(NULLIF($prefix '(' || btrim(regexp_replace($sql,E'(?:\\\\s+|:)','$suffix_op&','g'),'&|') $suffix_after || ')', '()'), ''))";
1257 $sql = join($joiner, @sql_set);
1258 $sql = '(' . $sql . ')' if (scalar(@$ts_configs) > 1);
1260 return $self->sql($sql);
1263 #-------------------------------
1264 package OpenILS::Application::Storage::Driver::Pg::QueryParser::query_plan::node;
1265 use base 'QueryParser::query_plan::node';
1270 $self->{dummy_count} = 0;
1272 my $atoms = $self->query_atoms;
1274 for my $a (@$atoms) {
1275 push(@only_atoms, $a) if (ref($a) && $a->isa('QueryParser::query_plan::node::atom'));
1276 $self->{dummy_count}++ if (ref($a) && $a->{dummy});
1279 return \@only_atoms;
1282 sub only_real_atoms {
1285 my $atoms = $self->query_atoms;
1286 my @only_real_atoms;
1287 for my $a (@$atoms) {
1288 push(@only_real_atoms, $a) if (ref($a) && $a->isa('QueryParser::query_plan::node::atom') && !($a->{dummy}));
1291 return \@only_real_atoms;
1294 sub only_positive_atoms {
1297 my $atoms = $self->query_atoms;
1298 my @only_positive_atoms;
1299 for my $a (@$atoms) {
1300 push(@only_positive_atoms, $a) if (ref($a) && $a->isa('QueryParser::query_plan::node::atom') && !($a->{dummy}) && ($a->{prefix} ne '!'));
1303 return \@only_positive_atoms;
1308 return $self->{dummy_count};
1314 $self->{table} = $table if ($table);
1315 return $self->{table} if $self->{table};
1316 return $self->table( 'metabib.' . $self->classname . '_field_entry' );
1319 sub combined_table {
1322 $self->{ctable} = $ctable if ($ctable);
1323 return $self->{ctable} if $self->{ctable};
1324 return $self->combined_table( 'metabib.combined_' . $self->classname . '_field_entry' );
1329 my $table_alias = shift;
1330 $self->{table_alias} = $table_alias if ($table_alias);
1331 return $self->{table_alias} if ($self->{table_alias});
1333 $table_alias = "$self";
1334 $table_alias =~ s/^.*\(0(x[0-9a-fA-F]+)\)$/$1/go;
1335 $table_alias .= '_' . $self->requested_class;
1336 $table_alias =~ s/\|/_/go;
1338 return $self->table_alias( $table_alias );
1343 return $self->{tsquery} if ($self->{tsquery});
1345 for my $atom (@{$self->query_atoms}) {
1347 $self->{tsquery} .= "\n" . ${spc} x 3 . $atom->sql;
1349 $self->{tsquery} .= $atom x 2;
1353 return $self->{tsquery};
1358 return $self->{tsquery_rank} if ($self->{tsquery_rank});
1361 for my $atom (@{$self->only_positive_atoms}) {
1362 push @atomlines, "\n" . ${spc} x 3 . $atom->sql;
1364 $self->{tsquery_rank} = join(' ||', @atomlines);
1365 $self->{tsquery_rank} = 'NULL::tsquery' unless $self->{tsquery_rank};
1366 return $self->{tsquery_rank};
1371 return $self->{rank} if ($self->{rank});
1373 my $rank_norm_map = $self->plan->QueryParser->custom_data->{rank_cd_weight_map};
1375 my $cover_density = 0;
1376 for my $norm ( keys %$rank_norm_map) {
1377 $cover_density += $$rank_norm_map{$norm} if ($self->plan->find_modifier($norm));
1380 my $weights = join(', ', @{$self->plan->QueryParser->search_class_weights($self->classname)});
1382 return $self->{rank} = "ts_rank_cd('{" . $weights . "}', " . $self->table_alias . '.index_vector, ' . $self->table_alias . ".tsq_rank, $cover_density)";