2 * Copyright (C) 2004-2008 Georgia Public Library Service
3 * Copyright (C) 2007-2008 Equinox Software, Inc.
4 * Mike Rylander <miker@esilibrary.com>
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version 2
9 * of the License, or (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
18 DROP SCHEMA IF EXISTS metabib CASCADE;
21 CREATE SCHEMA metabib;
23 CREATE TABLE metabib.metarecord (
24 id BIGSERIAL PRIMARY KEY,
25 fingerprint TEXT NOT NULL,
29 CREATE INDEX metabib_metarecord_master_record_idx ON metabib.metarecord (master_record);
30 CREATE INDEX metabib_metarecord_fingerprint_idx ON metabib.metarecord (fingerprint);
32 CREATE TABLE metabib.identifier_field_entry (
33 id BIGSERIAL PRIMARY KEY,
34 source BIGINT NOT NULL,
37 index_vector tsvector NOT NULL
39 CREATE TRIGGER metabib_identifier_field_entry_fti_trigger
40 BEFORE UPDATE OR INSERT ON metabib.identifier_field_entry
41 FOR EACH ROW EXECUTE PROCEDURE oils_tsearch2('identifier');
43 CREATE INDEX metabib_identifier_field_entry_index_vector_idx ON metabib.identifier_field_entry USING GIST (index_vector);
44 CREATE INDEX metabib_identifier_field_entry_value_idx ON metabib.identifier_field_entry (SUBSTRING(value,1,1024)) WHERE index_vector = ''::TSVECTOR;
45 CREATE INDEX metabib_identifier_field_entry_source_idx ON metabib.identifier_field_entry (source);
47 CREATE TABLE metabib.combined_identifier_field_entry (
48 record BIGINT NOT NULL,
49 metabib_field INT NULL,
50 index_vector tsvector NOT NULL
52 CREATE UNIQUE INDEX metabib_combined_identifier_field_entry_fakepk_idx ON metabib.combined_identifier_field_entry (record, COALESCE(metabib_field::TEXT,''));
53 CREATE INDEX metabib_combined_identifier_field_entry_index_vector_idx ON metabib.combined_identifier_field_entry USING GIST (index_vector);
54 CREATE INDEX metabib_combined_identifier_field_source_idx ON metabib.combined_identifier_field_entry (metabib_field);
56 CREATE TABLE metabib.title_field_entry (
57 id BIGSERIAL PRIMARY KEY,
58 source BIGINT NOT NULL,
61 index_vector tsvector NOT NULL
63 CREATE TRIGGER metabib_title_field_entry_fti_trigger
64 BEFORE UPDATE OR INSERT ON metabib.title_field_entry
65 FOR EACH ROW EXECUTE PROCEDURE oils_tsearch2('title');
67 CREATE INDEX metabib_title_field_entry_index_vector_idx ON metabib.title_field_entry USING GIST (index_vector);
68 CREATE INDEX metabib_title_field_entry_value_idx ON metabib.title_field_entry (SUBSTRING(value,1,1024)) WHERE index_vector = ''::TSVECTOR;
69 CREATE INDEX metabib_title_field_entry_source_idx ON metabib.title_field_entry (source);
71 CREATE TABLE metabib.combined_title_field_entry (
72 record BIGINT NOT NULL,
73 metabib_field INT NULL,
74 index_vector tsvector NOT NULL
76 CREATE UNIQUE INDEX metabib_combined_title_field_entry_fakepk_idx ON metabib.combined_title_field_entry (record, COALESCE(metabib_field::TEXT,''));
77 CREATE INDEX metabib_combined_title_field_entry_index_vector_idx ON metabib.combined_title_field_entry USING GIST (index_vector);
78 CREATE INDEX metabib_combined_title_field_source_idx ON metabib.combined_title_field_entry (metabib_field);
80 CREATE TABLE metabib.author_field_entry (
81 id BIGSERIAL PRIMARY KEY,
82 source BIGINT NOT NULL,
85 index_vector tsvector NOT NULL
87 CREATE TRIGGER metabib_author_field_entry_fti_trigger
88 BEFORE UPDATE OR INSERT ON metabib.author_field_entry
89 FOR EACH ROW EXECUTE PROCEDURE oils_tsearch2('author');
91 CREATE INDEX metabib_author_field_entry_index_vector_idx ON metabib.author_field_entry USING GIST (index_vector);
92 CREATE INDEX metabib_author_field_entry_value_idx ON metabib.author_field_entry (SUBSTRING(value,1,1024)) WHERE index_vector = ''::TSVECTOR;
93 CREATE INDEX metabib_author_field_entry_source_idx ON metabib.author_field_entry (source);
95 CREATE TABLE metabib.combined_author_field_entry (
96 record BIGINT NOT NULL,
97 metabib_field INT NULL,
98 index_vector tsvector NOT NULL
100 CREATE UNIQUE INDEX metabib_combined_author_field_entry_fakepk_idx ON metabib.combined_author_field_entry (record, COALESCE(metabib_field::TEXT,''));
101 CREATE INDEX metabib_combined_author_field_entry_index_vector_idx ON metabib.combined_author_field_entry USING GIST (index_vector);
102 CREATE INDEX metabib_combined_author_field_source_idx ON metabib.combined_author_field_entry (metabib_field);
104 CREATE TABLE metabib.subject_field_entry (
105 id BIGSERIAL PRIMARY KEY,
106 source BIGINT NOT NULL,
109 index_vector tsvector NOT NULL
111 CREATE TRIGGER metabib_subject_field_entry_fti_trigger
112 BEFORE UPDATE OR INSERT ON metabib.subject_field_entry
113 FOR EACH ROW EXECUTE PROCEDURE oils_tsearch2('subject');
115 CREATE INDEX metabib_subject_field_entry_index_vector_idx ON metabib.subject_field_entry USING GIST (index_vector);
116 CREATE INDEX metabib_subject_field_entry_value_idx ON metabib.subject_field_entry (SUBSTRING(value,1,1024)) WHERE index_vector = ''::TSVECTOR;
117 CREATE INDEX metabib_subject_field_entry_source_idx ON metabib.subject_field_entry (source);
119 CREATE TABLE metabib.combined_subject_field_entry (
120 record BIGINT NOT NULL,
121 metabib_field INT NULL,
122 index_vector tsvector NOT NULL
124 CREATE UNIQUE INDEX metabib_combined_subject_field_entry_fakepk_idx ON metabib.combined_subject_field_entry (record, COALESCE(metabib_field::TEXT,''));
125 CREATE INDEX metabib_combined_subject_field_entry_index_vector_idx ON metabib.combined_subject_field_entry USING GIST (index_vector);
126 CREATE INDEX metabib_combined_subject_field_source_idx ON metabib.combined_subject_field_entry (metabib_field);
128 CREATE TABLE metabib.keyword_field_entry (
129 id BIGSERIAL PRIMARY KEY,
130 source BIGINT NOT NULL,
133 index_vector tsvector NOT NULL
135 CREATE TRIGGER metabib_keyword_field_entry_fti_trigger
136 BEFORE UPDATE OR INSERT ON metabib.keyword_field_entry
137 FOR EACH ROW EXECUTE PROCEDURE oils_tsearch2('keyword');
139 CREATE INDEX metabib_keyword_field_entry_index_vector_idx ON metabib.keyword_field_entry USING GIST (index_vector);
140 CREATE INDEX metabib_keyword_field_entry_value_idx ON metabib.keyword_field_entry (SUBSTRING(value,1,1024)) WHERE index_vector = ''::TSVECTOR;
141 CREATE INDEX metabib_keyword_field_entry_source_idx ON metabib.keyword_field_entry (source);
143 CREATE TABLE metabib.combined_keyword_field_entry (
144 record BIGINT NOT NULL,
145 metabib_field INT NULL,
146 index_vector tsvector NOT NULL
148 CREATE UNIQUE INDEX metabib_combined_keyword_field_entry_fakepk_idx ON metabib.combined_keyword_field_entry (record, COALESCE(metabib_field::TEXT,''));
149 CREATE INDEX metabib_combined_keyword_field_entry_index_vector_idx ON metabib.combined_keyword_field_entry USING GIST (index_vector);
150 CREATE INDEX metabib_combined_keyword_field_source_idx ON metabib.combined_keyword_field_entry (metabib_field);
152 CREATE TABLE metabib.series_field_entry (
153 id BIGSERIAL PRIMARY KEY,
154 source BIGINT NOT NULL,
157 index_vector tsvector NOT NULL
159 CREATE TRIGGER metabib_series_field_entry_fti_trigger
160 BEFORE UPDATE OR INSERT ON metabib.series_field_entry
161 FOR EACH ROW EXECUTE PROCEDURE oils_tsearch2('series');
163 CREATE INDEX metabib_series_field_entry_index_vector_idx ON metabib.series_field_entry USING GIST (index_vector);
164 CREATE INDEX metabib_series_field_entry_value_idx ON metabib.series_field_entry (SUBSTRING(value,1,1024)) WHERE index_vector = ''::TSVECTOR;
165 CREATE INDEX metabib_series_field_entry_source_idx ON metabib.series_field_entry (source);
167 CREATE TABLE metabib.combined_series_field_entry (
168 record BIGINT NOT NULL,
169 metabib_field INT NULL,
170 index_vector tsvector NOT NULL
172 CREATE UNIQUE INDEX metabib_combined_series_field_entry_fakepk_idx ON metabib.combined_series_field_entry (record, COALESCE(metabib_field::TEXT,''));
173 CREATE INDEX metabib_combined_series_field_entry_index_vector_idx ON metabib.combined_series_field_entry USING GIST (index_vector);
174 CREATE INDEX metabib_combined_series_field_source_idx ON metabib.combined_series_field_entry (metabib_field);
176 CREATE TABLE metabib.facet_entry (
177 id BIGSERIAL PRIMARY KEY,
178 source BIGINT NOT NULL,
182 CREATE INDEX metabib_facet_entry_field_idx ON metabib.facet_entry (field);
183 CREATE INDEX metabib_facet_entry_value_idx ON metabib.facet_entry (SUBSTRING(value,1,1024));
184 CREATE INDEX metabib_facet_entry_source_idx ON metabib.facet_entry (source);
186 CREATE TABLE metabib.browse_entry (
187 id BIGSERIAL PRIMARY KEY,
189 index_vector tsvector,
190 sort_value TEXT NOT NULL,
191 UNIQUE(sort_value, value)
195 CREATE INDEX browse_entry_sort_value_idx
196 ON metabib.browse_entry USING BTREE (sort_value);
198 CREATE INDEX metabib_browse_entry_index_vector_idx ON metabib.browse_entry USING GIN (index_vector);
199 CREATE TRIGGER metabib_browse_entry_fti_trigger
200 BEFORE INSERT OR UPDATE ON metabib.browse_entry
201 FOR EACH ROW EXECUTE PROCEDURE oils_tsearch2('keyword');
204 CREATE TABLE metabib.browse_entry_def_map (
205 id BIGSERIAL PRIMARY KEY,
206 entry BIGINT REFERENCES metabib.browse_entry (id),
207 def INT REFERENCES config.metabib_field (id) ON UPDATE CASCADE DEFERRABLE INITIALLY DEFERRED,
208 source BIGINT REFERENCES biblio.record_entry (id),
209 authority BIGINT REFERENCES authority.record_entry (id) ON DELETE SET NULL
211 CREATE INDEX browse_entry_def_map_def_idx ON metabib.browse_entry_def_map (def);
212 CREATE INDEX browse_entry_def_map_entry_idx ON metabib.browse_entry_def_map (entry);
213 CREATE INDEX browse_entry_def_map_source_idx ON metabib.browse_entry_def_map (source);
215 CREATE TABLE metabib.browse_entry_simple_heading_map (
216 id BIGSERIAL PRIMARY KEY,
217 entry BIGINT REFERENCES metabib.browse_entry (id),
218 simple_heading BIGINT REFERENCES authority.simple_heading (id) ON DELETE CASCADE
220 CREATE INDEX browse_entry_sh_map_entry_idx ON metabib.browse_entry_simple_heading_map (entry);
221 CREATE INDEX browse_entry_sh_map_sh_idx ON metabib.browse_entry_simple_heading_map (simple_heading);
223 CREATE OR REPLACE FUNCTION metabib.facet_normalize_trigger () RETURNS TRIGGER AS $$
228 facet_text := NEW.value;
231 SELECT n.func AS func,
232 n.param_count AS param_count,
234 FROM config.index_normalizer n
235 JOIN config.metabib_field_index_norm_map m ON (m.norm = n.id)
236 WHERE m.field = NEW.field AND m.pos < 0
239 EXECUTE 'SELECT ' || normalizer.func || '(' ||
240 quote_literal( facet_text ) ||
242 WHEN normalizer.param_count > 0
243 THEN ',' || REPLACE(REPLACE(BTRIM(normalizer.params,'[]'),E'\'',E'\\\''),E'"',E'\'')
250 NEW.value = facet_text;
256 CREATE TRIGGER facet_normalize_tgr
257 BEFORE UPDATE OR INSERT ON metabib.facet_entry
258 FOR EACH ROW EXECUTE PROCEDURE metabib.facet_normalize_trigger();
260 CREATE OR REPLACE FUNCTION evergreen.facet_force_nfc() RETURNS TRIGGER AS $$
262 NEW.value := force_unicode_normal_form(NEW.value,'NFC');
267 CREATE TRIGGER facet_force_nfc_tgr
268 BEFORE UPDATE OR INSERT ON metabib.facet_entry
269 FOR EACH ROW EXECUTE PROCEDURE evergreen.facet_force_nfc();
271 -- DECREMENTING serial starts at -1
272 CREATE SEQUENCE metabib.uncontrolled_record_attr_value_id_seq INCREMENT BY -1;
274 CREATE TABLE metabib.uncontrolled_record_attr_value (
275 id BIGINT PRIMARY KEY DEFAULT nextval('metabib.uncontrolled_record_attr_value_id_seq'),
276 attr TEXT NOT NULL REFERENCES config.record_attr_definition (name),
279 CREATE UNIQUE INDEX muv_once_idx ON metabib.uncontrolled_record_attr_value (attr,value);
281 CREATE VIEW metabib.record_attr_id_map AS
282 SELECT id, attr, value FROM metabib.uncontrolled_record_attr_value
284 SELECT c.id, c.ctype AS attr, c.code AS value
285 FROM config.coded_value_map c
286 JOIN config.record_attr_definition d ON (d.name = c.ctype AND NOT d.composite);
288 CREATE VIEW metabib.composite_attr_id_map AS
289 SELECT c.id, c.ctype AS attr, c.code AS value
290 FROM config.coded_value_map c
291 JOIN config.record_attr_definition d ON (d.name = c.ctype AND d.composite);
293 CREATE VIEW metabib.full_attr_id_map AS
294 SELECT id, attr, value FROM metabib.record_attr_id_map
296 SELECT id, attr, value FROM metabib.composite_attr_id_map;
299 CREATE OR REPLACE FUNCTION metabib.compile_composite_attr_cache_init () RETURNS BOOL AS $f$
300 $_SHARED{metabib_compile_composite_attr_cache} = {}
301 if ! exists $_SHARED{metabib_compile_composite_attr_cache};
302 return exists $_SHARED{metabib_compile_composite_attr_cache};
303 $f$ LANGUAGE PLPERLU;
305 CREATE OR REPLACE FUNCTION metabib.compile_composite_attr_cache_disable () RETURNS BOOL AS $f$
306 delete $_SHARED{metabib_compile_composite_attr_cache};
307 return ! exists $_SHARED{metabib_compile_composite_attr_cache};
308 $f$ LANGUAGE PLPERLU;
310 CREATE OR REPLACE FUNCTION metabib.compile_composite_attr_cache_invalidate () RETURNS BOOL AS $f$
311 SELECT metabib.compile_composite_attr_cache_disable() AND metabib.compile_composite_attr_cache_init();
314 CREATE OR REPLACE FUNCTION metabib.composite_attr_def_cache_inval_tgr () RETURNS TRIGGER AS $f$
316 PERFORM metabib.compile_composite_attr_cache_invalidate();
319 $f$ LANGUAGE PLPGSQL;
321 CREATE TRIGGER ccraed_cache_inval_tgr AFTER INSERT OR UPDATE OR DELETE ON config.composite_attr_entry_definition FOR EACH STATEMENT EXECUTE PROCEDURE metabib.composite_attr_def_cache_inval_tgr();
323 CREATE OR REPLACE FUNCTION metabib.compile_composite_attr ( cattr_def TEXT ) RETURNS query_int AS $func$
328 my $def = decode_json($json);
330 die("Composite attribute definition not supplied") unless $def;
332 my $_cache = (exists $_SHARED{metabib_compile_composite_attr_cache}) ? 1 : 0;
334 return $_SHARED{metabib_compile_composite_attr_cache}{$json}
335 if ($_cache && $_SHARED{metabib_compile_composite_attr_cache}{$json});
342 if (ref $d eq 'HASH') { # node or AND
343 if (exists $d->{_attr}) { # it is a node
344 my $plan = spi_prepare('SELECT * FROM metabib.full_attr_id_map WHERE attr = $1 AND value = $2', qw/TEXT TEXT/);
345 my $id = spi_exec_prepared(
346 $plan, {limit => 1}, $d->{_attr}, $d->{_val}
350 } elsif (exists $d->{_not} && scalar(keys(%$d)) == 1) { # it is a NOT
351 return '!' . recurse($$d{_not});
352 } else { # an AND list
353 @list = map { recurse($$d{$_}) } sort keys %$d;
355 } elsif (ref $d eq 'ARRAY') {
357 @list = map { recurse($_) } @$d;
360 @list = grep { defined && $_ ne '' } @list;
362 return '(' . join($j,@list) . ')' if @list;
366 my $val = recurse($def) || undef;
367 $_SHARED{metabib_compile_composite_attr_cache}{$json} = $val if $_cache;
370 $func$ IMMUTABLE LANGUAGE plperlu;
372 CREATE OR REPLACE FUNCTION metabib.compile_composite_attr ( cattr_id INT ) RETURNS query_int AS $func$
373 SELECT metabib.compile_composite_attr(definition) FROM config.composite_attr_entry_definition WHERE coded_value = $1;
374 $func$ STRICT IMMUTABLE LANGUAGE SQL;
376 CREATE TABLE metabib.record_attr_vector_list (
377 source BIGINT PRIMARY KEY REFERENCES biblio.record_entry (id),
378 vlist INT[] NOT NULL -- stores id from ccvm AND murav
380 CREATE INDEX mrca_vlist_idx ON metabib.record_attr_vector_list USING gin ( vlist gin__int_ops );
382 /* This becomes a view, and we do sorters differently ...
383 CREATE TABLE metabib.record_attr (
384 id BIGINT PRIMARY KEY REFERENCES biblio.record_entry (id) ON DELETE CASCADE,
385 attrs HSTORE NOT NULL DEFAULT ''::HSTORE
387 CREATE INDEX metabib_svf_attrs_idx ON metabib.record_attr USING GIST (attrs);
388 CREATE INDEX metabib_svf_date1_idx ON metabib.record_attr ((attrs->'date1'));
389 CREATE INDEX metabib_svf_dates_idx ON metabib.record_attr ((attrs->'date1'),(attrs->'date2'));
393 CREATE TABLE metabib.record_sorter (
394 id BIGSERIAL PRIMARY KEY,
395 source BIGINT NOT NULL REFERENCES biblio.record_entry (id) ON DELETE CASCADE,
396 attr TEXT NOT NULL REFERENCES config.record_attr_definition (name) ON DELETE CASCADE,
399 CREATE INDEX metabib_sorter_source_idx ON metabib.record_sorter (source); -- we may not need one of this or the next ... stats will tell
400 CREATE INDEX metabib_sorter_s_a_idx ON metabib.record_sorter (source, attr);
401 CREATE INDEX metabib_sorter_a_v_idx ON metabib.record_sorter (attr, value);
404 CREATE TYPE metabib.record_attr_type AS (
409 -- Back-compat view ... we're moving to an INTARRAY world
410 CREATE VIEW metabib.record_attr_flat AS
411 SELECT v.source AS id,
414 FROM metabib.full_attr_id_map m
415 JOIN metabib.record_attr_vector_list v ON ( m.id = ANY( v.vlist ) );
417 CREATE VIEW metabib.record_attr AS
418 SELECT id, HSTORE( ARRAY_AGG( attr ), ARRAY_AGG( value ) ) AS attrs FROM metabib.record_attr_flat GROUP BY 1;
420 -- Back-back-compat view ... we use to live in an HSTORE world
421 CREATE TYPE metabib.rec_desc_type AS (
439 CREATE VIEW metabib.rec_descriptor AS
442 (populate_record(NULL::metabib.rec_desc_type, attrs)).*
443 FROM metabib.record_attr;
445 -- Use a sequence that matches previous version, for easier upgrading.
446 CREATE SEQUENCE metabib.full_rec_id_seq;
448 CREATE TABLE metabib.real_full_rec (
449 id BIGINT NOT NULL DEFAULT NEXTVAL('metabib.full_rec_id_seq'::REGCLASS),
450 record BIGINT NOT NULL,
451 tag CHAR(3) NOT NULL,
456 index_vector tsvector NOT NULL
458 ALTER TABLE metabib.real_full_rec ADD PRIMARY KEY (id);
460 CREATE INDEX metabib_full_rec_tag_subfield_idx ON metabib.real_full_rec (tag,subfield);
461 CREATE INDEX metabib_full_rec_value_idx ON metabib.real_full_rec (substring(value,1,1024));
462 /* Enable LIKE to use an index for database clusters with locales other than C or POSIX */
463 CREATE INDEX metabib_full_rec_value_tpo_index ON metabib.real_full_rec (substring(value,1,1024) text_pattern_ops);
464 CREATE INDEX metabib_full_rec_record_idx ON metabib.real_full_rec (record);
465 CREATE INDEX metabib_full_rec_index_vector_idx ON metabib.real_full_rec USING GIST (index_vector);
466 CREATE INDEX metabib_full_rec_isxn_caseless_idx
467 ON metabib.real_full_rec (LOWER(value))
468 WHERE tag IN ('020', '022', '024');
469 -- This next index might fully supplant the one above, but leaving both for now.
470 -- (they are not too large)
471 -- The reason we need this index is to ensure that the query parser always
472 -- prefers this index over the simpler tag/subfield index, as this greatly
473 -- increases Vandelay overlay speed for these identifiers, especially when
474 -- a record has many of these fields (around > 4-6 seems like the cutoff
475 -- on at least one PG9.1 system)
476 -- A similar index could be added for other fields (e.g. 010), but one should
477 -- leave out the LOWER() in all other cases.
478 -- TODO: verify whether we can discard the non tag/subfield/substring version
479 -- above (metabib_full_rec_isxn_caseless_idx)
480 CREATE INDEX metabib_full_rec_02x_tag_subfield_lower_substring
481 ON metabib.real_full_rec (tag, subfield, LOWER(substring(value, 1, 1024)))
482 WHERE tag IN ('020', '022', '024');
485 CREATE TRIGGER metabib_full_rec_fti_trigger
486 BEFORE UPDATE OR INSERT ON metabib.real_full_rec
487 FOR EACH ROW EXECUTE PROCEDURE oils_tsearch2('default');
489 CREATE OR REPLACE VIEW metabib.full_rec AS
496 SUBSTRING(value,1,1024) AS value,
498 FROM metabib.real_full_rec;
500 CREATE OR REPLACE RULE metabib_full_rec_insert_rule
501 AS ON INSERT TO metabib.full_rec
503 INSERT INTO metabib.real_full_rec VALUES (
504 COALESCE(NEW.id, NEXTVAL('metabib.full_rec_id_seq'::REGCLASS)),
514 CREATE OR REPLACE RULE metabib_full_rec_update_rule
515 AS ON UPDATE TO metabib.full_rec
517 UPDATE metabib.real_full_rec SET
523 subfield = NEW.subfield,
525 index_vector = NEW.index_vector
528 CREATE OR REPLACE RULE metabib_full_rec_delete_rule
529 AS ON DELETE TO metabib.full_rec
531 DELETE FROM metabib.real_full_rec WHERE id = OLD.id;
533 CREATE TABLE metabib.metarecord_source_map (
534 id BIGSERIAL PRIMARY KEY,
535 metarecord BIGINT NOT NULL,
536 source BIGINT NOT NULL
538 CREATE INDEX metabib_metarecord_source_map_metarecord_idx ON metabib.metarecord_source_map (metarecord);
539 CREATE INDEX metabib_metarecord_source_map_source_record_idx ON metabib.metarecord_source_map (source);
541 CREATE TYPE metabib.field_entry_template AS (
554 CREATE OR REPLACE FUNCTION biblio.extract_metabib_field_entry ( rid BIGINT, default_joiner TEXT ) RETURNS SETOF metabib.field_entry_template AS $func$
556 bib biblio.record_entry%ROWTYPE;
557 idx config.metabib_field%ROWTYPE;
558 xfrm config.xml_transform%ROWTYPE;
560 transformed_xml TEXT;
562 xml_node_list TEXT[];
568 joiner TEXT := default_joiner; -- XXX will index defs supply a joiner?
570 authority_link BIGINT;
571 output_row metabib.field_entry_template%ROWTYPE;
574 -- Start out with no field-use bools set
575 output_row.browse_field = FALSE;
576 output_row.facet_field = FALSE;
577 output_row.search_field = FALSE;
580 SELECT INTO bib * FROM biblio.record_entry WHERE id = rid;
582 -- Loop over the indexing entries
583 FOR idx IN SELECT * FROM config.metabib_field ORDER BY format LOOP
585 joiner := COALESCE(idx.joiner, default_joiner);
587 SELECT INTO xfrm * from config.xml_transform WHERE name = idx.format;
589 -- See if we can skip the XSLT ... it's expensive
590 IF prev_xfrm IS NULL OR prev_xfrm <> xfrm.name THEN
591 -- Can't skip the transform
592 IF xfrm.xslt <> '---' THEN
593 transformed_xml := oils_xslt_process(bib.marc,xfrm.xslt);
595 transformed_xml := bib.marc;
598 prev_xfrm := xfrm.name;
601 xml_node_list := oils_xpath( idx.xpath, transformed_xml, ARRAY[ARRAY[xfrm.prefix, xfrm.namespace_uri]] );
604 FOR xml_node IN SELECT x FROM unnest(xml_node_list) AS x LOOP
605 CONTINUE WHEN xml_node !~ E'^\\s*<';
607 -- XXX much of this should be moved into oils_xpath_string...
608 curr_text := ARRAY_TO_STRING(evergreen.array_remove_item_by_value(evergreen.array_remove_item_by_value(
609 oils_xpath( '//text()', -- get the content of all the nodes within the main selected node
610 REGEXP_REPLACE( xml_node, E'\\s+', ' ', 'g' ) -- Translate adjacent whitespace to a single space
611 ), ' '), ''), -- throw away morally empty (bankrupt?) strings
615 CONTINUE WHEN curr_text IS NULL OR curr_text = '';
617 IF raw_text IS NOT NULL THEN
618 raw_text := raw_text || joiner;
621 raw_text := COALESCE(raw_text,'') || curr_text;
623 -- autosuggest/metabib.browse_entry
624 IF idx.browse_field THEN
626 IF idx.browse_xpath IS NOT NULL AND idx.browse_xpath <> '' THEN
627 browse_text := oils_xpath_string( idx.browse_xpath, xml_node, joiner, ARRAY[ARRAY[xfrm.prefix, xfrm.namespace_uri]] );
629 browse_text := curr_text;
632 IF idx.browse_sort_xpath IS NOT NULL AND
633 idx.browse_sort_xpath <> '' THEN
635 sort_value := oils_xpath_string(
636 idx.browse_sort_xpath, xml_node, joiner,
637 ARRAY[ARRAY[xfrm.prefix, xfrm.namespace_uri]]
640 sort_value := browse_text;
643 output_row.field_class = idx.field_class;
644 output_row.field = idx.id;
645 output_row.source = rid;
646 output_row.value = BTRIM(REGEXP_REPLACE(browse_text, E'\\s+', ' ', 'g'));
647 output_row.sort_value :=
648 public.naco_normalize(sort_value);
650 output_row.authority := NULL;
652 IF idx.authority_xpath IS NOT NULL AND idx.authority_xpath <> '' THEN
653 authority_text := oils_xpath_string(
654 idx.authority_xpath, xml_node, joiner,
656 ARRAY[xfrm.prefix, xfrm.namespace_uri],
657 ARRAY['xlink','http://www.w3.org/1999/xlink']
661 IF authority_text ~ '^\d+$' THEN
662 authority_link := authority_text::BIGINT;
663 PERFORM * FROM authority.record_entry WHERE id = authority_link;
665 output_row.authority := authority_link;
671 output_row.browse_field = TRUE;
672 -- Returning browse rows with search_field = true for search+browse
673 -- configs allows us to retain granularity of being able to search
674 -- browse fields with "starts with" type operators (for example, for
675 -- titles of songs in music albums)
676 IF idx.search_field THEN
677 output_row.search_field = TRUE;
679 RETURN NEXT output_row;
680 output_row.browse_field = FALSE;
681 output_row.search_field = FALSE;
682 output_row.sort_value := NULL;
685 -- insert raw node text for faceting
686 IF idx.facet_field THEN
688 IF idx.facet_xpath IS NOT NULL AND idx.facet_xpath <> '' THEN
689 facet_text := oils_xpath_string( idx.facet_xpath, xml_node, joiner, ARRAY[ARRAY[xfrm.prefix, xfrm.namespace_uri]] );
691 facet_text := curr_text;
694 output_row.field_class = idx.field_class;
695 output_row.field = -1 * idx.id;
696 output_row.source = rid;
697 output_row.value = BTRIM(REGEXP_REPLACE(facet_text, E'\\s+', ' ', 'g'));
699 output_row.facet_field = TRUE;
700 RETURN NEXT output_row;
701 output_row.facet_field = FALSE;
706 CONTINUE WHEN raw_text IS NULL OR raw_text = '';
708 -- insert combined node text for searching
709 IF idx.search_field THEN
710 output_row.field_class = idx.field_class;
711 output_row.field = idx.id;
712 output_row.source = rid;
713 output_row.value = BTRIM(REGEXP_REPLACE(raw_text, E'\\s+', ' ', 'g'));
715 output_row.search_field = TRUE;
716 RETURN NEXT output_row;
717 output_row.search_field = FALSE;
724 $func$ LANGUAGE PLPGSQL;
726 CREATE OR REPLACE FUNCTION metabib.update_combined_index_vectors(bib_id BIGINT) RETURNS VOID AS $func$
728 DELETE FROM metabib.combined_keyword_field_entry WHERE record = bib_id;
729 INSERT INTO metabib.combined_keyword_field_entry(record, metabib_field, index_vector)
730 SELECT bib_id, field, strip(COALESCE(string_agg(index_vector::TEXT,' '),'')::tsvector)
731 FROM metabib.keyword_field_entry WHERE source = bib_id GROUP BY field;
732 INSERT INTO metabib.combined_keyword_field_entry(record, metabib_field, index_vector)
733 SELECT bib_id, NULL, strip(COALESCE(string_agg(index_vector::TEXT,' '),'')::tsvector)
734 FROM metabib.keyword_field_entry WHERE source = bib_id;
736 DELETE FROM metabib.combined_title_field_entry WHERE record = bib_id;
737 INSERT INTO metabib.combined_title_field_entry(record, metabib_field, index_vector)
738 SELECT bib_id, field, strip(COALESCE(string_agg(index_vector::TEXT,' '),'')::tsvector)
739 FROM metabib.title_field_entry WHERE source = bib_id GROUP BY field;
740 INSERT INTO metabib.combined_title_field_entry(record, metabib_field, index_vector)
741 SELECT bib_id, NULL, strip(COALESCE(string_agg(index_vector::TEXT,' '),'')::tsvector)
742 FROM metabib.title_field_entry WHERE source = bib_id;
744 DELETE FROM metabib.combined_author_field_entry WHERE record = bib_id;
745 INSERT INTO metabib.combined_author_field_entry(record, metabib_field, index_vector)
746 SELECT bib_id, field, strip(COALESCE(string_agg(index_vector::TEXT,' '),'')::tsvector)
747 FROM metabib.author_field_entry WHERE source = bib_id GROUP BY field;
748 INSERT INTO metabib.combined_author_field_entry(record, metabib_field, index_vector)
749 SELECT bib_id, NULL, strip(COALESCE(string_agg(index_vector::TEXT,' '),'')::tsvector)
750 FROM metabib.author_field_entry WHERE source = bib_id;
752 DELETE FROM metabib.combined_subject_field_entry WHERE record = bib_id;
753 INSERT INTO metabib.combined_subject_field_entry(record, metabib_field, index_vector)
754 SELECT bib_id, field, strip(COALESCE(string_agg(index_vector::TEXT,' '),'')::tsvector)
755 FROM metabib.subject_field_entry WHERE source = bib_id GROUP BY field;
756 INSERT INTO metabib.combined_subject_field_entry(record, metabib_field, index_vector)
757 SELECT bib_id, NULL, strip(COALESCE(string_agg(index_vector::TEXT,' '),'')::tsvector)
758 FROM metabib.subject_field_entry WHERE source = bib_id;
760 DELETE FROM metabib.combined_series_field_entry WHERE record = bib_id;
761 INSERT INTO metabib.combined_series_field_entry(record, metabib_field, index_vector)
762 SELECT bib_id, field, strip(COALESCE(string_agg(index_vector::TEXT,' '),'')::tsvector)
763 FROM metabib.series_field_entry WHERE source = bib_id GROUP BY field;
764 INSERT INTO metabib.combined_series_field_entry(record, metabib_field, index_vector)
765 SELECT bib_id, NULL, strip(COALESCE(string_agg(index_vector::TEXT,' '),'')::tsvector)
766 FROM metabib.series_field_entry WHERE source = bib_id;
768 DELETE FROM metabib.combined_identifier_field_entry WHERE record = bib_id;
769 INSERT INTO metabib.combined_identifier_field_entry(record, metabib_field, index_vector)
770 SELECT bib_id, field, strip(COALESCE(string_agg(index_vector::TEXT,' '),'')::tsvector)
771 FROM metabib.identifier_field_entry WHERE source = bib_id GROUP BY field;
772 INSERT INTO metabib.combined_identifier_field_entry(record, metabib_field, index_vector)
773 SELECT bib_id, NULL, strip(COALESCE(string_agg(index_vector::TEXT,' '),'')::tsvector)
774 FROM metabib.identifier_field_entry WHERE source = bib_id;
777 $func$ LANGUAGE PLPGSQL;
779 CREATE OR REPLACE FUNCTION metabib.reingest_metabib_field_entries( bib_id BIGINT, skip_facet BOOL DEFAULT FALSE, skip_browse BOOL DEFAULT FALSE, skip_search BOOL DEFAULT FALSE ) RETURNS VOID AS $func$
782 ind_data metabib.field_entry_template%ROWTYPE;
783 mbe_row metabib.browse_entry%ROWTYPE;
791 SELECT COALESCE(NULLIF(skip_facet, FALSE), EXISTS (SELECT enabled FROM config.internal_flag WHERE name = 'ingest.skip_facet_indexing' AND enabled)) INTO b_skip_facet;
792 SELECT COALESCE(NULLIF(skip_browse, FALSE), EXISTS (SELECT enabled FROM config.internal_flag WHERE name = 'ingest.skip_browse_indexing' AND enabled)) INTO b_skip_browse;
793 SELECT COALESCE(NULLIF(skip_search, FALSE), EXISTS (SELECT enabled FROM config.internal_flag WHERE name = 'ingest.skip_search_indexing' AND enabled)) INTO b_skip_search;
795 PERFORM * FROM config.internal_flag WHERE name = 'ingest.assume_inserts_only' AND enabled;
797 IF NOT b_skip_search THEN
798 FOR fclass IN SELECT * FROM config.metabib_class LOOP
799 -- RAISE NOTICE 'Emptying out %', fclass.name;
800 EXECUTE $$DELETE FROM metabib.$$ || fclass.name || $$_field_entry WHERE source = $$ || bib_id;
803 IF NOT b_skip_facet THEN
804 DELETE FROM metabib.facet_entry WHERE source = bib_id;
806 IF NOT b_skip_browse THEN
807 DELETE FROM metabib.browse_entry_def_map WHERE source = bib_id;
811 FOR ind_data IN SELECT * FROM biblio.extract_metabib_field_entry( bib_id ) LOOP
812 IF ind_data.field < 0 THEN
813 ind_data.field = -1 * ind_data.field;
816 IF ind_data.facet_field AND NOT b_skip_facet THEN
817 INSERT INTO metabib.facet_entry (field, source, value)
818 VALUES (ind_data.field, ind_data.source, ind_data.value);
821 IF ind_data.browse_field AND NOT b_skip_browse THEN
822 -- A caveat about this SELECT: this should take care of replacing
823 -- old mbe rows when data changes, but not if normalization (by
824 -- which I mean specifically the output of
825 -- evergreen.oils_tsearch2()) changes. It may or may not be
826 -- expensive to add a comparison of index_vector to index_vector
827 -- to the WHERE clause below.
829 value_prepped := metabib.browse_normalize(ind_data.value, ind_data.field);
830 SELECT INTO mbe_row * FROM metabib.browse_entry
831 WHERE value = value_prepped AND sort_value = ind_data.sort_value;
834 mbe_id := mbe_row.id;
836 INSERT INTO metabib.browse_entry
837 ( value, sort_value ) VALUES
838 ( value_prepped, ind_data.sort_value );
840 mbe_id := CURRVAL('metabib.browse_entry_id_seq'::REGCLASS);
843 INSERT INTO metabib.browse_entry_def_map (entry, def, source, authority)
844 VALUES (mbe_id, ind_data.field, ind_data.source, ind_data.authority);
847 IF ind_data.search_field AND NOT b_skip_search THEN
848 -- Avoid inserting duplicate rows
849 EXECUTE 'SELECT 1 FROM metabib.' || ind_data.field_class ||
850 '_field_entry WHERE field = $1 AND source = $2 AND value = $3'
851 INTO mbe_id USING ind_data.field, ind_data.source, ind_data.value;
852 -- RAISE NOTICE 'Search for an already matching row returned %', mbe_id;
853 IF mbe_id IS NULL THEN
855 INSERT INTO metabib.$$ || ind_data.field_class || $$_field_entry (field, source, value)
857 quote_literal(ind_data.field) || $$, $$ ||
858 quote_literal(ind_data.source) || $$, $$ ||
859 quote_literal(ind_data.value) ||
866 IF NOT b_skip_search THEN
867 PERFORM metabib.update_combined_index_vectors(bib_id);
872 $func$ LANGUAGE PLPGSQL;
874 -- default to a space joiner
875 CREATE OR REPLACE FUNCTION biblio.extract_metabib_field_entry ( BIGINT ) RETURNS SETOF metabib.field_entry_template AS $func$
876 SELECT * FROM biblio.extract_metabib_field_entry($1, ' ');
879 CREATE OR REPLACE FUNCTION authority.flatten_marc ( rid BIGINT ) RETURNS SETOF authority.full_rec AS $func$
881 auth authority.record_entry%ROWTYPE;
882 output authority.full_rec%ROWTYPE;
885 SELECT INTO auth * FROM authority.record_entry WHERE id = rid;
887 FOR field IN SELECT * FROM vandelay.flatten_marc( auth.marc ) LOOP
888 output.record := rid;
889 output.ind1 := field.ind1;
890 output.ind2 := field.ind2;
891 output.tag := field.tag;
892 output.subfield := field.subfield;
893 output.value := field.value;
898 $func$ LANGUAGE PLPGSQL;
900 CREATE OR REPLACE FUNCTION biblio.flatten_marc ( rid BIGINT ) RETURNS SETOF metabib.full_rec AS $func$
902 bib biblio.record_entry%ROWTYPE;
903 output metabib.full_rec%ROWTYPE;
906 SELECT INTO bib * FROM biblio.record_entry WHERE id = rid;
908 FOR field IN SELECT * FROM vandelay.flatten_marc( bib.marc ) LOOP
909 output.record := rid;
910 output.ind1 := field.ind1;
911 output.ind2 := field.ind2;
912 output.tag := field.tag;
913 output.subfield := field.subfield;
914 output.value := field.value;
919 $func$ LANGUAGE PLPGSQL;
921 CREATE OR REPLACE FUNCTION vandelay.marc21_record_type( marc TEXT ) RETURNS config.marc21_rec_type_map AS $func$
928 retval config.marc21_rec_type_map%ROWTYPE;
930 ldr := oils_xpath_string( '//*[local-name()="leader"]', marc );
932 IF ldr IS NULL OR ldr = '' THEN
933 SELECT * INTO retval FROM config.marc21_rec_type_map WHERE code = 'BKS';
937 SELECT * INTO tval_rec FROM config.marc21_ff_pos_map WHERE fixed_field = 'Type' LIMIT 1; -- They're all the same
938 SELECT * INTO bval_rec FROM config.marc21_ff_pos_map WHERE fixed_field = 'BLvl' LIMIT 1; -- They're all the same
941 tval := SUBSTRING( ldr, tval_rec.start_pos + 1, tval_rec.length );
942 bval := SUBSTRING( ldr, bval_rec.start_pos + 1, bval_rec.length );
944 -- RAISE NOTICE 'type %, blvl %, ldr %', tval, bval, ldr;
946 SELECT * INTO retval FROM config.marc21_rec_type_map WHERE type_val LIKE '%' || tval || '%' AND blvl_val LIKE '%' || bval || '%';
949 IF retval.code IS NULL THEN
950 SELECT * INTO retval FROM config.marc21_rec_type_map WHERE code = 'BKS';
955 $func$ LANGUAGE PLPGSQL;
957 CREATE OR REPLACE FUNCTION biblio.marc21_record_type( rid BIGINT ) RETURNS config.marc21_rec_type_map AS $func$
958 SELECT * FROM vandelay.marc21_record_type( (SELECT marc FROM biblio.record_entry WHERE id = $1) );
961 CREATE OR REPLACE FUNCTION vandelay.marc21_extract_fixed_field_list( marc TEXT, ff TEXT ) RETURNS TEXT[] AS $func$
967 collection TEXT[] := '{}'::TEXT[];
969 rtype := (vandelay.marc21_record_type( marc )).code;
970 FOR ff_pos IN SELECT * FROM config.marc21_ff_pos_map WHERE fixed_field = ff AND rec_type = rtype ORDER BY tag DESC LOOP
971 IF ff_pos.tag = 'ldr' THEN
972 val := oils_xpath_string('//*[local-name()="leader"]', marc);
973 IF val IS NOT NULL THEN
974 val := SUBSTRING( val, ff_pos.start_pos + 1, ff_pos.length );
975 collection := collection || val;
978 FOR tag_data IN SELECT value FROM UNNEST( oils_xpath( '//*[@tag="' || UPPER(ff_pos.tag) || '"]/text()', marc ) ) x(value) LOOP
979 val := SUBSTRING( tag_data.value, ff_pos.start_pos + 1, ff_pos.length );
980 collection := collection || val;
983 val := REPEAT( ff_pos.default_val, ff_pos.length );
984 collection := collection || val;
989 $func$ LANGUAGE PLPGSQL;
991 CREATE OR REPLACE FUNCTION vandelay.marc21_extract_fixed_field( marc TEXT, ff TEXT ) RETURNS TEXT AS $func$
998 rtype := (vandelay.marc21_record_type( marc )).code;
999 FOR ff_pos IN SELECT * FROM config.marc21_ff_pos_map WHERE fixed_field = ff AND rec_type = rtype ORDER BY tag DESC LOOP
1000 IF ff_pos.tag = 'ldr' THEN
1001 val := oils_xpath_string('//*[local-name()="leader"]', marc);
1002 IF val IS NOT NULL THEN
1003 val := SUBSTRING( val, ff_pos.start_pos + 1, ff_pos.length );
1007 FOR tag_data IN SELECT value FROM UNNEST( oils_xpath( '//*[@tag="' || UPPER(ff_pos.tag) || '"]/text()', marc ) ) x(value) LOOP
1008 val := SUBSTRING( tag_data.value, ff_pos.start_pos + 1, ff_pos.length );
1012 val := REPEAT( ff_pos.default_val, ff_pos.length );
1018 $func$ LANGUAGE PLPGSQL;
1020 CREATE OR REPLACE FUNCTION biblio.marc21_extract_fixed_field_list( rid BIGINT, ff TEXT ) RETURNS TEXT[] AS $func$
1021 SELECT * FROM vandelay.marc21_extract_fixed_field_list( (SELECT marc FROM biblio.record_entry WHERE id = $1), $2 );
1022 $func$ LANGUAGE SQL;
1024 CREATE OR REPLACE FUNCTION biblio.marc21_extract_fixed_field( rid BIGINT, ff TEXT ) RETURNS TEXT AS $func$
1025 SELECT * FROM vandelay.marc21_extract_fixed_field( (SELECT marc FROM biblio.record_entry WHERE id = $1), $2 );
1026 $func$ LANGUAGE SQL;
1028 -- CREATE TYPE biblio.record_ff_map AS (record BIGINT, ff_name TEXT, ff_value TEXT);
1029 CREATE OR REPLACE FUNCTION vandelay.marc21_extract_all_fixed_fields( marc TEXT ) RETURNS SETOF biblio.record_ff_map AS $func$
1034 output biblio.record_ff_map%ROWTYPE;
1036 rtype := (vandelay.marc21_record_type( marc )).code;
1038 FOR ff_pos IN SELECT * FROM config.marc21_ff_pos_map WHERE rec_type = rtype ORDER BY tag DESC LOOP
1039 output.ff_name := ff_pos.fixed_field;
1040 output.ff_value := NULL;
1042 IF ff_pos.tag = 'ldr' THEN
1043 output.ff_value := oils_xpath_string('//*[local-name()="leader"]', marc);
1044 IF output.ff_value IS NOT NULL THEN
1045 output.ff_value := SUBSTRING( output.ff_value, ff_pos.start_pos + 1, ff_pos.length );
1047 output.ff_value := NULL;
1050 FOR tag_data IN SELECT value FROM UNNEST( oils_xpath( '//*[@tag="' || UPPER(ff_pos.tag) || '"]/text()', marc ) ) x(value) LOOP
1051 output.ff_value := SUBSTRING( tag_data, ff_pos.start_pos + 1, ff_pos.length );
1052 IF output.ff_value IS NULL THEN output.ff_value := REPEAT( ff_pos.default_val, ff_pos.length ); END IF;
1054 output.ff_value := NULL;
1062 $func$ LANGUAGE PLPGSQL;
1064 CREATE OR REPLACE FUNCTION biblio.marc21_extract_all_fixed_fields( rid BIGINT ) RETURNS SETOF biblio.record_ff_map AS $func$
1065 SELECT $1 AS record, ff_name, ff_value FROM vandelay.marc21_extract_all_fixed_fields( (SELECT marc FROM biblio.record_entry WHERE id = $1) );
1066 $func$ LANGUAGE SQL;
1068 CREATE OR REPLACE FUNCTION biblio.marc21_physical_characteristics( rid BIGINT ) RETURNS SETOF biblio.marc21_physical_characteristics AS $func$
1069 SELECT id, $1 AS record, ptype, subfield, value FROM vandelay.marc21_physical_characteristics( (SELECT marc FROM biblio.record_entry WHERE id = $1) );
1070 $func$ LANGUAGE SQL;
1072 CREATE OR REPLACE FUNCTION biblio.extract_quality ( marc TEXT, best_lang TEXT, best_type TEXT ) RETURNS INT AS $func$
1085 IF marc IS NULL OR marc = '' THEN
1089 -- First, the count of tags
1090 qual := ARRAY_UPPER(oils_xpath('*[local-name()="datafield"]', marc), 1);
1092 -- now go through a bunch of pain to get the record type
1093 IF best_type IS NOT NULL THEN
1094 ldr := (oils_xpath('//*[local-name()="leader"]/text()', marc))[1];
1096 IF ldr IS NOT NULL THEN
1097 SELECT * INTO tval_rec FROM config.marc21_ff_pos_map WHERE fixed_field = 'Type' LIMIT 1; -- They're all the same
1098 SELECT * INTO bval_rec FROM config.marc21_ff_pos_map WHERE fixed_field = 'BLvl' LIMIT 1; -- They're all the same
1101 tval := SUBSTRING( ldr, tval_rec.start_pos + 1, tval_rec.length );
1102 bval := SUBSTRING( ldr, bval_rec.start_pos + 1, bval_rec.length );
1104 -- RAISE NOTICE 'type %, blvl %, ldr %', tval, bval, ldr;
1106 SELECT * INTO type_map FROM config.marc21_rec_type_map WHERE type_val LIKE '%' || tval || '%' AND blvl_val LIKE '%' || bval || '%';
1108 IF type_map.code IS NOT NULL THEN
1109 IF best_type = type_map.code THEN
1110 qual := qual + qual / 2;
1113 FOR ff_pos IN SELECT * FROM config.marc21_ff_pos_map WHERE fixed_field = 'Lang' AND rec_type = type_map.code ORDER BY tag DESC LOOP
1114 ff_tag_data := SUBSTRING((oils_xpath('//*[@tag="' || ff_pos.tag || '"]/text()',marc))[1], ff_pos.start_pos + 1, ff_pos.length);
1115 IF ff_tag_data = best_lang THEN
1123 -- Now look for some quality metrics
1125 IF ARRAY_UPPER(oils_xpath('//*[@tag="040"]/*[@code="a" and contains(.,"DLC")]', marc), 1) = 1 THEN
1130 IF (oils_xpath('//*[@tag="003"]/text()', marc))[1] ~* E'oclo?c' THEN
1137 $func$ LANGUAGE PLPGSQL;
1139 CREATE OR REPLACE FUNCTION biblio.extract_fingerprint ( marc text ) RETURNS TEXT AS $func$
1141 idx config.biblio_fingerprint%ROWTYPE;
1142 xfrm config.xml_transform%ROWTYPE;
1144 transformed_xml TEXT;
1146 xml_node_list TEXT[];
1148 output_text TEXT := '';
1151 IF marc IS NULL OR marc = '' THEN
1155 -- Loop over the indexing entries
1156 FOR idx IN SELECT * FROM config.biblio_fingerprint ORDER BY format, id LOOP
1158 SELECT INTO xfrm * from config.xml_transform WHERE name = idx.format;
1160 -- See if we can skip the XSLT ... it's expensive
1161 IF prev_xfrm IS NULL OR prev_xfrm <> xfrm.name THEN
1162 -- Can't skip the transform
1163 IF xfrm.xslt <> '---' THEN
1164 transformed_xml := oils_xslt_process(marc,xfrm.xslt);
1166 transformed_xml := marc;
1169 prev_xfrm := xfrm.name;
1172 raw_text := COALESCE(
1180 ARRAY[ARRAY[xfrm.prefix, xfrm.namespace_uri]]
1189 raw_text := REGEXP_REPLACE(raw_text, E'\\[.+?\\]', E'');
1190 raw_text := REGEXP_REPLACE(raw_text, E'\\mthe\\M|\\man?d?d\\M', E'', 'g'); -- arg! the pain!
1192 IF idx.first_word IS TRUE THEN
1193 raw_text := REGEXP_REPLACE(raw_text, E'^(\\w+).*?$', E'\\1');
1196 output_text := output_text || REGEXP_REPLACE(raw_text, E'\\s+', '', 'g');
1203 $func$ LANGUAGE PLPGSQL;
1205 -- BEFORE UPDATE OR INSERT trigger for biblio.record_entry
1206 CREATE OR REPLACE FUNCTION biblio.fingerprint_trigger () RETURNS TRIGGER AS $func$
1209 -- For TG_ARGV, first param is language (like 'eng'), second is record type (like 'BKS')
1211 IF NEW.deleted IS TRUE THEN -- we don't much care, then, do we?
1215 NEW.fingerprint := biblio.extract_fingerprint(NEW.marc);
1216 NEW.quality := biblio.extract_quality(NEW.marc, TG_ARGV[0], TG_ARGV[1]);
1221 $func$ LANGUAGE PLPGSQL;
1223 CREATE OR REPLACE FUNCTION metabib.reingest_metabib_full_rec( bib_id BIGINT ) RETURNS VOID AS $func$
1225 PERFORM * FROM config.internal_flag WHERE name = 'ingest.assume_inserts_only' AND enabled;
1227 DELETE FROM metabib.real_full_rec WHERE record = bib_id;
1229 INSERT INTO metabib.real_full_rec (record, tag, ind1, ind2, subfield, value)
1230 SELECT record, tag, ind1, ind2, subfield, value FROM biblio.flatten_marc( bib_id );
1234 $func$ LANGUAGE PLPGSQL;
1236 CREATE OR REPLACE FUNCTION biblio.extract_located_uris( bib_id BIGINT, marcxml TEXT, editor_id INT ) RETURNS VOID AS $func$
1243 uri_owner_list TEXT[];
1251 -- Clear any URI mappings and call numbers for this bib.
1252 -- This leads to acn / auricnm inflation, but also enables
1253 -- old acn/auricnm's to go away and for bibs to be deleted.
1254 FOR uri_cn_id IN SELECT id FROM asset.call_number WHERE record = bib_id AND label = '##URI##' AND NOT deleted LOOP
1255 DELETE FROM asset.uri_call_number_map WHERE call_number = uri_cn_id;
1256 DELETE FROM asset.call_number WHERE id = uri_cn_id;
1259 uris := oils_xpath('//*[@tag="856" and (@ind1="4" or @ind1="1") and (@ind2="0" or @ind2="1")]',marcxml);
1260 IF ARRAY_UPPER(uris,1) > 0 THEN
1261 FOR i IN 1 .. ARRAY_UPPER(uris, 1) LOOP
1262 -- First we pull info out of the 856
1265 uri_href := (oils_xpath('//*[@code="u"]/text()',uri_xml))[1];
1266 uri_label := (oils_xpath('//*[@code="y"]/text()|//*[@code="3"]/text()',uri_xml))[1];
1267 uri_use := (oils_xpath('//*[@code="z"]/text()|//*[@code="2"]/text()|//*[@code="n"]/text()',uri_xml))[1];
1269 IF uri_label IS NULL THEN
1270 uri_label := uri_href;
1272 CONTINUE WHEN uri_href IS NULL;
1274 -- Get the distinct list of libraries wanting to use
1276 DISTINCT REGEXP_REPLACE(
1278 $re$^.*?\((\w+)\).*$$re$,
1281 ) INTO uri_owner_list
1284 '//*[@code="9"]/text()|//*[@code="w"]/text()|//*[@code="n"]/text()',
1289 IF ARRAY_UPPER(uri_owner_list,1) > 0 THEN
1291 -- look for a matching uri
1292 IF uri_use IS NULL THEN
1293 SELECT id INTO uri_id
1295 WHERE label = uri_label AND href = uri_href AND use_restriction IS NULL AND active
1296 ORDER BY id LIMIT 1;
1297 IF NOT FOUND THEN -- create one
1298 INSERT INTO asset.uri (label, href, use_restriction) VALUES (uri_label, uri_href, uri_use);
1299 SELECT id INTO uri_id
1301 WHERE label = uri_label AND href = uri_href AND use_restriction IS NULL AND active;
1304 SELECT id INTO uri_id
1306 WHERE label = uri_label AND href = uri_href AND use_restriction = uri_use AND active
1307 ORDER BY id LIMIT 1;
1308 IF NOT FOUND THEN -- create one
1309 INSERT INTO asset.uri (label, href, use_restriction) VALUES (uri_label, uri_href, uri_use);
1310 SELECT id INTO uri_id
1312 WHERE label = uri_label AND href = uri_href AND use_restriction = uri_use AND active;
1316 FOR j IN 1 .. ARRAY_UPPER(uri_owner_list, 1) LOOP
1317 uri_owner := uri_owner_list[j];
1319 SELECT id INTO uri_owner_id FROM actor.org_unit WHERE shortname = uri_owner;
1320 CONTINUE WHEN NOT FOUND;
1322 -- we need a call number to link through
1323 SELECT id INTO uri_cn_id FROM asset.call_number WHERE owning_lib = uri_owner_id AND record = bib_id AND label = '##URI##' AND NOT deleted;
1325 INSERT INTO asset.call_number (owning_lib, record, create_date, edit_date, creator, editor, label)
1326 VALUES (uri_owner_id, bib_id, 'now', 'now', editor_id, editor_id, '##URI##');
1327 SELECT id INTO uri_cn_id FROM asset.call_number WHERE owning_lib = uri_owner_id AND record = bib_id AND label = '##URI##' AND NOT deleted;
1330 -- now, link them if they're not already
1331 SELECT id INTO uri_map_id FROM asset.uri_call_number_map WHERE call_number = uri_cn_id AND uri = uri_id;
1333 INSERT INTO asset.uri_call_number_map (call_number, uri) VALUES (uri_cn_id, uri_id);
1345 $func$ LANGUAGE PLPGSQL;
1347 CREATE OR REPLACE FUNCTION metabib.remap_metarecord_for_bib( bib_id BIGINT, fp TEXT, bib_is_deleted BOOL DEFAULT FALSE, retain_deleted BOOL DEFAULT FALSE ) RETURNS BIGINT AS $func$
1349 new_mapping BOOL := TRUE;
1352 tmp_mr metabib.metarecord%ROWTYPE;
1353 deleted_mrs BIGINT[];
1356 -- We need to make sure we're not a deleted master record of an MR
1357 IF bib_is_deleted THEN
1358 FOR old_mr IN SELECT id FROM metabib.metarecord WHERE master_record = bib_id LOOP
1360 IF NOT retain_deleted THEN -- Go away for any MR that we're master of, unless retained
1361 DELETE FROM metabib.metarecord_source_map WHERE source = bib_id;
1364 -- Now, are there any more sources on this MR?
1365 SELECT COUNT(*) INTO source_count FROM metabib.metarecord_source_map WHERE metarecord = old_mr;
1367 IF source_count = 0 AND NOT retain_deleted THEN -- No other records
1368 deleted_mrs := ARRAY_APPEND(deleted_mrs, old_mr); -- Just in case...
1369 DELETE FROM metabib.metarecord WHERE id = old_mr;
1371 ELSE -- indeed there are. Update it with a null cache and recalcualated master record
1372 UPDATE metabib.metarecord
1374 master_record = ( SELECT id FROM biblio.record_entry WHERE fingerprint = fp AND NOT deleted ORDER BY quality DESC LIMIT 1)
1379 ELSE -- insert or update
1381 FOR tmp_mr IN SELECT m.* FROM metabib.metarecord m JOIN metabib.metarecord_source_map s ON (s.metarecord = m.id) WHERE s.source = bib_id LOOP
1383 -- Find the first fingerprint-matching
1384 IF old_mr IS NULL AND fp = tmp_mr.fingerprint THEN
1385 old_mr := tmp_mr.id;
1386 new_mapping := FALSE;
1388 ELSE -- Our fingerprint changed ... maybe remove the old MR
1389 DELETE FROM metabib.metarecord_source_map WHERE metarecord = old_mr AND source = bib_id; -- remove the old source mapping
1390 SELECT COUNT(*) INTO source_count FROM metabib.metarecord_source_map WHERE metarecord = tmp_mr.id;
1391 IF source_count = 0 THEN -- No other records
1392 deleted_mrs := ARRAY_APPEND(deleted_mrs, tmp_mr.id);
1393 DELETE FROM metabib.metarecord WHERE id = tmp_mr.id;
1399 -- we found no suitable, preexisting MR based on old source maps
1400 IF old_mr IS NULL THEN
1401 SELECT id INTO old_mr FROM metabib.metarecord WHERE fingerprint = fp; -- is there one for our current fingerprint?
1403 IF old_mr IS NULL THEN -- nope, create one and grab its id
1404 INSERT INTO metabib.metarecord ( fingerprint, master_record ) VALUES ( fp, bib_id );
1405 SELECT id INTO old_mr FROM metabib.metarecord WHERE fingerprint = fp;
1407 ELSE -- indeed there is. update it with a null cache and recalcualated master record
1408 UPDATE metabib.metarecord
1410 master_record = ( SELECT id FROM biblio.record_entry WHERE fingerprint = fp AND NOT deleted ORDER BY quality DESC LIMIT 1)
1414 ELSE -- there was one we already attached to, update its mods cache and master_record
1415 UPDATE metabib.metarecord
1417 master_record = ( SELECT id FROM biblio.record_entry WHERE fingerprint = fp AND NOT deleted ORDER BY quality DESC LIMIT 1)
1422 INSERT INTO metabib.metarecord_source_map (metarecord, source) VALUES (old_mr, bib_id); -- new source mapping
1427 IF ARRAY_UPPER(deleted_mrs,1) > 0 THEN
1428 UPDATE action.hold_request SET target = old_mr WHERE target IN ( SELECT unnest(deleted_mrs) ) AND hold_type = 'M'; -- if we had to delete any MRs above, make sure their holds are moved
1434 $func$ LANGUAGE PLPGSQL;
1437 CREATE OR REPLACE FUNCTION biblio.map_authority_linking (bibid BIGINT, marc TEXT) RETURNS BIGINT AS $func$
1438 DELETE FROM authority.bib_linking WHERE bib = $1;
1439 INSERT INTO authority.bib_linking (bib, authority)
1442 FROM ( SELECT DISTINCT $1 AS bib,
1443 BTRIM(remove_paren_substring(txt))::BIGINT AS authority
1444 FROM unnest(oils_xpath('//*[@code="0"]/text()',$2)) x(txt)
1445 WHERE BTRIM(remove_paren_substring(txt)) ~ $re$^\d+$$re$
1446 ) y JOIN authority.record_entry r ON r.id = y.authority;
1448 $func$ LANGUAGE SQL;
1450 CREATE OR REPLACE FUNCTION metabib.reingest_record_attributes (rid BIGINT, pattr_list TEXT[] DEFAULT NULL, prmarc TEXT DEFAULT NULL, rdeleted BOOL DEFAULT TRUE) RETURNS VOID AS $func$
1452 transformed_xml TEXT;
1453 rmarc TEXT := prmarc;
1457 xfrm config.xml_transform%ROWTYPE;
1458 attr_vector INT[] := '{}'::INT[];
1459 attr_vector_tmp INT[];
1460 attr_list TEXT[] := pattr_list;
1462 norm_attr_value TEXT[];
1464 attr_def config.record_attr_definition%ROWTYPE;
1465 ccvm_row config.coded_value_map%ROWTYPE;
1468 IF attr_list IS NULL OR rdeleted THEN -- need to do the full dance on INSERT or undelete
1469 SELECT ARRAY_AGG(name) INTO attr_list FROM config.record_attr_definition;
1472 IF rmarc IS NULL THEN
1473 SELECT marc INTO rmarc FROM biblio.record_entry WHERE id = rid;
1476 FOR attr_def IN SELECT * FROM config.record_attr_definition WHERE NOT composite AND name = ANY( attr_list ) ORDER BY format LOOP
1478 attr_value := '{}'::TEXT[];
1479 norm_attr_value := '{}'::TEXT[];
1480 attr_vector_tmp := '{}'::INT[];
1482 SELECT * INTO ccvm_row FROM config.coded_value_map c WHERE c.ctype = attr_def.name LIMIT 1;
1484 -- tag+sf attrs only support SVF
1485 IF attr_def.tag IS NOT NULL THEN -- tag (and optional subfield list) selection
1486 SELECT ARRAY[ARRAY_TO_STRING(ARRAY_AGG(value), COALESCE(attr_def.joiner,' '))] INTO attr_value
1487 FROM (SELECT * FROM metabib.full_rec ORDER BY tag, subfield) AS x
1489 AND tag LIKE attr_def.tag
1491 WHEN attr_def.sf_list IS NOT NULL
1492 THEN POSITION(subfield IN attr_def.sf_list) > 0
1499 ELSIF attr_def.fixed_field IS NOT NULL THEN -- a named fixed field, see config.marc21_ff_pos_map.fixed_field
1500 attr_value := vandelay.marc21_extract_fixed_field_list(rmarc, attr_def.fixed_field);
1502 IF NOT attr_def.multi THEN
1503 attr_value := ARRAY[attr_value[1]];
1506 ELSIF attr_def.xpath IS NOT NULL THEN -- and xpath expression
1508 SELECT INTO xfrm * FROM config.xml_transform WHERE name = attr_def.format;
1510 -- See if we can skip the XSLT ... it's expensive
1511 IF prev_xfrm IS NULL OR prev_xfrm <> xfrm.name THEN
1512 -- Can't skip the transform
1513 IF xfrm.xslt <> '---' THEN
1514 transformed_xml := oils_xslt_process(rmarc,xfrm.xslt);
1516 transformed_xml := rmarc;
1519 prev_xfrm := xfrm.name;
1522 IF xfrm.name IS NULL THEN
1523 -- just grab the marcxml (empty) transform
1524 SELECT INTO xfrm * FROM config.xml_transform WHERE xslt = '---' LIMIT 1;
1525 prev_xfrm := xfrm.name;
1528 FOR tmp_xml IN SELECT oils_xpath(attr_def.xpath, transformed_xml, ARRAY[ARRAY[xfrm.prefix, xfrm.namespace_uri]]) LOOP
1529 tmp_val := oils_xpath_string(
1532 COALESCE(attr_def.joiner,' '),
1533 ARRAY[ARRAY[xfrm.prefix, xfrm.namespace_uri]]
1535 IF tmp_val IS NOT NULL AND BTRIM(tmp_val) <> '' THEN
1536 attr_value := attr_value || tmp_val;
1537 EXIT WHEN NOT attr_def.multi;
1541 ELSIF attr_def.phys_char_sf IS NOT NULL THEN -- a named Physical Characteristic, see config.marc21_physical_characteristic_*_map
1542 SELECT ARRAY_AGG(m.value) INTO attr_value
1543 FROM vandelay.marc21_physical_characteristics(rmarc) v
1544 LEFT JOIN config.marc21_physical_characteristic_value_map m ON (m.id = v.value)
1545 WHERE v.subfield = attr_def.phys_char_sf AND (m.value IS NOT NULL AND BTRIM(m.value) <> '')
1546 AND ( ccvm_row.id IS NULL OR ( ccvm_row.id IS NOT NULL AND v.id IS NOT NULL) );
1548 IF NOT attr_def.multi THEN
1549 attr_value := ARRAY[attr_value[1]];
1554 -- apply index normalizers to attr_value
1555 FOR tmp_val IN SELECT value FROM UNNEST(attr_value) x(value) LOOP
1557 SELECT n.func AS func,
1558 n.param_count AS param_count,
1560 FROM config.index_normalizer n
1561 JOIN config.record_attr_index_norm_map m ON (m.norm = n.id)
1562 WHERE attr = attr_def.name
1564 EXECUTE 'SELECT ' || normalizer.func || '(' ||
1565 COALESCE( quote_literal( tmp_val ), 'NULL' ) ||
1567 WHEN normalizer.param_count > 0
1568 THEN ',' || REPLACE(REPLACE(BTRIM(normalizer.params,'[]'),E'\'',E'\\\''),E'"',E'\'')
1574 IF tmp_val IS NOT NULL AND BTRIM(tmp_val) <> '' THEN
1575 norm_attr_value := norm_attr_value || tmp_val;
1579 IF attr_def.filter THEN
1580 -- Create unknown uncontrolled values and find the IDs of the values
1581 IF ccvm_row.id IS NULL THEN
1582 FOR tmp_val IN SELECT value FROM UNNEST(norm_attr_value) x(value) LOOP
1583 IF tmp_val IS NOT NULL AND BTRIM(tmp_val) <> '' THEN
1584 BEGIN -- use subtransaction to isolate unique constraint violations
1585 INSERT INTO metabib.uncontrolled_record_attr_value ( attr, value ) VALUES ( attr_def.name, tmp_val );
1586 EXCEPTION WHEN unique_violation THEN END;
1590 SELECT ARRAY_AGG(id) INTO attr_vector_tmp FROM metabib.uncontrolled_record_attr_value WHERE attr = attr_def.name AND value = ANY( norm_attr_value );
1592 SELECT ARRAY_AGG(id) INTO attr_vector_tmp FROM config.coded_value_map WHERE ctype = attr_def.name AND code = ANY( norm_attr_value );
1595 -- Add the new value to the vector
1596 attr_vector := attr_vector || attr_vector_tmp;
1599 IF attr_def.sorter AND norm_attr_value[1] IS NOT NULL THEN
1600 DELETE FROM metabib.record_sorter WHERE source = rid AND attr = attr_def.name;
1601 INSERT INTO metabib.record_sorter (source, attr, value) VALUES (rid, attr_def.name, norm_attr_value[1]);
1606 /* We may need to rewrite the vlist to contain
1607 the intersection of new values for requested
1608 attrs and old values for ignored attrs. To
1609 do this, we take the old attr vlist and
1610 subtract any values that are valid for the
1611 requested attrs, and then add back the new
1612 set of attr values. */
1614 IF ARRAY_LENGTH(pattr_list, 1) > 0 THEN
1615 SELECT vlist INTO attr_vector_tmp FROM metabib.record_attr_vector_list WHERE source = rid;
1616 SELECT attr_vector_tmp - ARRAY_AGG(id::INT) INTO attr_vector_tmp FROM metabib.full_attr_id_map WHERE attr = ANY (pattr_list);
1617 attr_vector := attr_vector || attr_vector_tmp;
1620 -- On to composite attributes, now that the record attrs have been pulled. Processed in name order, so later composite
1621 -- attributes can depend on earlier ones.
1622 PERFORM metabib.compile_composite_attr_cache_init();
1623 FOR attr_def IN SELECT * FROM config.record_attr_definition WHERE composite AND name = ANY( attr_list ) ORDER BY name LOOP
1625 FOR ccvm_row IN SELECT * FROM config.coded_value_map c WHERE c.ctype = attr_def.name ORDER BY value LOOP
1627 tmp_val := metabib.compile_composite_attr( ccvm_row.id );
1628 CONTINUE WHEN tmp_val IS NULL OR tmp_val = ''; -- nothing to do
1630 IF attr_def.filter THEN
1631 IF attr_vector @@ tmp_val::query_int THEN
1632 attr_vector = attr_vector + intset(ccvm_row.id);
1633 EXIT WHEN NOT attr_def.multi;
1637 IF attr_def.sorter THEN
1638 IF attr_vector @@ tmp_val THEN
1639 DELETE FROM metabib.record_sorter WHERE source = rid AND attr = attr_def.name;
1640 INSERT INTO metabib.record_sorter (source, attr, value) VALUES (rid, attr_def.name, ccvm_row.code);
1648 IF ARRAY_LENGTH(attr_vector, 1) > 0 THEN
1649 IF rdeleted THEN -- initial insert OR revivication
1650 DELETE FROM metabib.record_attr_vector_list WHERE source = rid;
1651 INSERT INTO metabib.record_attr_vector_list (source, vlist) VALUES (rid, attr_vector);
1653 UPDATE metabib.record_attr_vector_list SET vlist = attr_vector WHERE source = rid;
1659 $func$ LANGUAGE PLPGSQL;
1662 -- AFTER UPDATE OR INSERT trigger for biblio.record_entry
1663 CREATE OR REPLACE FUNCTION biblio.indexing_ingest_or_delete () RETURNS TRIGGER AS $func$
1668 IF NEW.deleted THEN -- If this bib is deleted
1670 PERFORM * FROM config.internal_flag WHERE
1671 name = 'ingest.metarecord_mapping.preserve_on_delete' AND enabled;
1673 tmp_bool := FOUND; -- Just in case this is changed by some other statement
1675 PERFORM metabib.remap_metarecord_for_bib( NEW.id, NEW.fingerprint, TRUE, tmp_bool );
1677 IF NOT tmp_bool THEN
1678 -- One needs to keep these around to support searches
1679 -- with the #deleted modifier, so one should turn on the named
1680 -- internal flag for that functionality.
1681 DELETE FROM metabib.record_attr_vector_list WHERE source = NEW.id;
1684 DELETE FROM authority.bib_linking WHERE bib = NEW.id; -- Avoid updating fields in bibs that are no longer visible
1685 DELETE FROM biblio.peer_bib_copy_map WHERE peer_record = NEW.id; -- Separate any multi-homed items
1686 DELETE FROM metabib.browse_entry_def_map WHERE source = NEW.id; -- Don't auto-suggest deleted bibs
1687 RETURN NEW; -- and we're done
1690 IF TG_OP = 'UPDATE' THEN -- re-ingest?
1691 PERFORM * FROM config.internal_flag WHERE name = 'ingest.reingest.force_on_same_marc' AND enabled;
1693 IF NOT FOUND AND OLD.marc = NEW.marc THEN -- don't do anything if the MARC didn't change
1698 -- Record authority linking
1699 PERFORM * FROM config.internal_flag WHERE name = 'ingest.disable_authority_linking' AND enabled;
1701 PERFORM biblio.map_authority_linking( NEW.id, NEW.marc );
1704 -- Flatten and insert the mfr data
1705 PERFORM * FROM config.internal_flag WHERE name = 'ingest.disable_metabib_full_rec' AND enabled;
1707 PERFORM metabib.reingest_metabib_full_rec(NEW.id);
1709 -- Now we pull out attribute data, which is dependent on the mfr for all but XPath-based fields
1710 PERFORM * FROM config.internal_flag WHERE name = 'ingest.disable_metabib_rec_descriptor' AND enabled;
1712 PERFORM metabib.reingest_record_attributes(NEW.id, NULL, NEW.marc, TG_OP = 'INSERT' OR OLD.deleted);
1716 -- Gather and insert the field entry data
1717 PERFORM metabib.reingest_metabib_field_entries(NEW.id);
1719 -- Located URI magic
1720 IF TG_OP = 'INSERT' THEN
1721 PERFORM * FROM config.internal_flag WHERE name = 'ingest.disable_located_uri' AND enabled;
1723 PERFORM biblio.extract_located_uris( NEW.id, NEW.marc, NEW.editor );
1726 PERFORM * FROM config.internal_flag WHERE name = 'ingest.disable_located_uri' AND enabled;
1728 PERFORM biblio.extract_located_uris( NEW.id, NEW.marc, NEW.editor );
1732 -- (re)map metarecord-bib linking
1733 IF TG_OP = 'INSERT' THEN -- if not deleted and performing an insert, check for the flag
1734 PERFORM * FROM config.internal_flag WHERE name = 'ingest.metarecord_mapping.skip_on_insert' AND enabled;
1736 PERFORM metabib.remap_metarecord_for_bib( NEW.id, NEW.fingerprint );
1738 ELSE -- we're doing an update, and we're not deleted, remap
1739 PERFORM * FROM config.internal_flag WHERE name = 'ingest.metarecord_mapping.skip_on_update' AND enabled;
1741 PERFORM metabib.remap_metarecord_for_bib( NEW.id, NEW.fingerprint );
1747 $func$ LANGUAGE PLPGSQL;
1749 CREATE OR REPLACE FUNCTION metabib.browse_normalize(facet_text TEXT, mapped_field INT) RETURNS TEXT AS $$
1755 SELECT n.func AS func,
1756 n.param_count AS param_count,
1758 FROM config.index_normalizer n
1759 JOIN config.metabib_field_index_norm_map m ON (m.norm = n.id)
1760 WHERE m.field = mapped_field AND m.pos < 0
1763 EXECUTE 'SELECT ' || normalizer.func || '(' ||
1764 quote_literal( facet_text ) ||
1766 WHEN normalizer.param_count > 0
1767 THEN ',' || REPLACE(REPLACE(BTRIM(normalizer.params,'[]'),E'\'',E'\\\''),E'"',E'\'')
1770 ')' INTO facet_text;
1777 $$ LANGUAGE PLPGSQL;
1780 -- This mimics a specific part of QueryParser, turning the first part of a
1781 -- classed search (search_class) into a set of classes and possibly fields.
1782 -- search_class might look like "author" or "title|proper" or "ti|uniform"
1783 -- or "au" or "au|corporate|personal" or anything like that, where the first
1784 -- element of the list you get by separating on the "|" character is either
1785 -- a registered class (config.metabib_class) or an alias
1786 -- (config.metabib_search_alias), and the rest of any such elements are
1787 -- fields (config.metabib_field).
1789 FUNCTION metabib.search_class_to_registered_components(search_class TEXT)
1790 RETURNS SETOF RECORD AS $func$
1792 search_parts TEXT[];
1794 search_part_count INTEGER;
1796 registered_class config.metabib_class%ROWTYPE;
1797 registered_alias config.metabib_search_alias%ROWTYPE;
1798 registered_field config.metabib_field%ROWTYPE;
1800 search_parts := REGEXP_SPLIT_TO_ARRAY(search_class, E'\\|');
1802 search_part_count := ARRAY_LENGTH(search_parts, 1);
1803 IF search_part_count = 0 THEN
1806 SELECT INTO registered_class
1807 * FROM config.metabib_class WHERE name = search_parts[1];
1809 IF search_part_count < 2 THEN -- all fields
1810 rec := (registered_class.name, NULL::INTEGER);
1814 FOR field_name IN SELECT *
1815 FROM UNNEST(search_parts[2:search_part_count]) LOOP
1816 SELECT INTO registered_field
1817 * FROM config.metabib_field
1818 WHERE name = field_name AND
1819 field_class = registered_class.name;
1821 rec := (registered_class.name, registered_field.id);
1826 -- maybe we have an alias?
1827 SELECT INTO registered_alias
1828 * FROM config.metabib_search_alias WHERE alias=search_parts[1];
1832 IF search_part_count < 2 THEN -- return w/e the alias says
1834 registered_alias.field_class, registered_alias.field
1839 FOR field_name IN SELECT *
1840 FROM UNNEST(search_parts[2:search_part_count]) LOOP
1841 SELECT INTO registered_field
1842 * FROM config.metabib_field
1843 WHERE name = field_name AND
1844 field_class = registered_alias.field_class;
1847 registered_alias.field_class,
1858 $func$ LANGUAGE PLPGSQL ROWS 1;
1861 -- Given a string such as a user might type into a search box, prepare
1862 -- two changed variants for TO_TSQUERY(). See
1863 -- http://www.postgresql.org/docs/9.0/static/textsearch-controls.html
1864 -- The first variant is normalized to match indexed documents regardless
1865 -- of diacritics. The second variant keeps its diacritics for proper
1866 -- highlighting via TS_HEADLINE().
1868 FUNCTION metabib.autosuggest_prepare_tsquery(orig TEXT) RETURNS TEXT[] AS
1871 orig_ended_in_space BOOLEAN;
1876 orig_ended_in_space := orig ~ E'\\s$';
1878 orig := ARRAY_TO_STRING(
1879 evergreen.regexp_split_to_array(orig, E'\\W+'), ' '
1882 normalized := public.naco_normalize(orig); -- also trim()s
1883 plain := trim(orig);
1885 IF NOT orig_ended_in_space THEN
1886 plain := plain || ':*';
1887 normalized := normalized || ':*';
1890 plain := ARRAY_TO_STRING(
1891 evergreen.regexp_split_to_array(plain, E'\\s+'), ' & '
1893 normalized := ARRAY_TO_STRING(
1894 evergreen.regexp_split_to_array(normalized, E'\\s+'), ' & '
1897 RETURN ARRAY[normalized, plain];
1899 $$ LANGUAGE PLPGSQL;
1903 FUNCTION metabib.suggest_browse_entries(
1904 raw_query_text TEXT, -- actually typed by humans at the UI level
1905 search_class TEXT, -- 'alias' or 'class' or 'class|field..', etc
1906 headline_opts TEXT, -- markup options for ts_headline()
1907 visibility_org INTEGER,-- null if you don't want opac visibility test
1908 query_limit INTEGER,-- use in LIMIT clause of interal query
1909 normalization INTEGER -- argument to TS_RANK_CD()
1911 value TEXT, -- plain
1913 buoyant_and_class_match BOOL,
1915 field_weight INTEGER,
1918 match TEXT -- marked up
1921 prepared_query_texts TEXT[];
1923 plain_query TSQUERY;
1924 opac_visibility_join TEXT;
1925 search_class_join TEXT;
1928 prepared_query_texts := metabib.autosuggest_prepare_tsquery(raw_query_text);
1930 query := TO_TSQUERY('keyword', prepared_query_texts[1]);
1931 plain_query := TO_TSQUERY('keyword', prepared_query_texts[2]);
1933 visibility_org := NULLIF(visibility_org,-1);
1934 IF visibility_org IS NOT NULL THEN
1935 opac_visibility_join := '
1936 JOIN asset.opac_visible_copies aovc ON (
1937 aovc.record = x.source AND
1938 aovc.circ_lib IN (SELECT id FROM actor.org_unit_descendants($4))
1941 opac_visibility_join := '';
1944 -- The following determines whether we only provide suggestsons matching
1945 -- the user's selected search_class, or whether we show other suggestions
1946 -- too. The reason for MIN() is that for search_classes like
1947 -- 'title|proper|uniform' you would otherwise get multiple rows. The
1948 -- implication is that if title as a class doesn't have restrict,
1949 -- nor does the proper field, but the uniform field does, you're going
1950 -- to get 'false' for your overall evaluation of 'should we restrict?'
1951 -- To invert that, change from MIN() to MAX().
1955 MIN(cmc.restrict::INT) AS restrict_class,
1956 MIN(cmf.restrict::INT) AS restrict_field
1957 FROM metabib.search_class_to_registered_components(search_class)
1958 AS _registered (field_class TEXT, field INT)
1960 config.metabib_class cmc ON (cmc.name = _registered.field_class)
1962 config.metabib_field cmf ON (cmf.id = _registered.field);
1964 -- evaluate 'should we restrict?'
1965 IF r_fields.restrict_field::BOOL OR r_fields.restrict_class::BOOL THEN
1966 search_class_join := '
1968 metabib.search_class_to_registered_components($2)
1969 AS _registered (field_class TEXT, field INT) ON (
1970 (_registered.field IS NULL AND
1971 _registered.field_class = cmf.field_class) OR
1972 (_registered.field = cmf.id)
1976 search_class_join := '
1978 metabib.search_class_to_registered_components($2)
1979 AS _registered (field_class TEXT, field INT) ON (
1980 _registered.field_class = cmc.name
1985 RETURN QUERY EXECUTE '
1994 TS_HEADLINE(value, $7, $3)
1995 FROM (SELECT DISTINCT
1998 cmc.buoyant AND _registered.field_class IS NOT NULL AS push,
1999 _registered.field = cmf.id AS restrict,
2001 TS_RANK_CD(mbe.index_vector, $1, $6),
2004 FROM metabib.browse_entry_def_map mbedm
2005 JOIN (SELECT * FROM metabib.browse_entry WHERE index_vector @@ $1 LIMIT 10000) mbe ON (mbe.id = mbedm.entry)
2006 JOIN config.metabib_field cmf ON (cmf.id = mbedm.def)
2007 JOIN config.metabib_class cmc ON (cmf.field_class = cmc.name)
2008 ' || search_class_join || '
2009 ORDER BY 3 DESC, 4 DESC NULLS LAST, 5 DESC, 6 DESC, 7 DESC, 1 ASC
2011 ' || opac_visibility_join || '
2012 ORDER BY 3 DESC, 4 DESC NULLS LAST, 5 DESC, 6 DESC, 7 DESC, 1 ASC
2014 ' -- sic, repeat the order by clause in the outer select too
2016 query, search_class, headline_opts,
2017 visibility_org, query_limit, normalization, plain_query
2021 -- buoyant AND chosen class = match class
2022 -- chosen field = match field
2029 $func$ LANGUAGE PLPGSQL;
2031 CREATE OR REPLACE FUNCTION public.oils_tsearch2 () RETURNS TRIGGER AS $$
2035 temp_vector TEXT := '';
2041 NEW.index_vector = ''::tsvector;
2043 IF TG_TABLE_NAME::TEXT ~ 'field_entry$' THEN
2045 SELECT n.func AS func,
2046 n.param_count AS param_count,
2048 FROM config.index_normalizer n
2049 JOIN config.metabib_field_index_norm_map m ON (m.norm = n.id)
2050 WHERE field = NEW.field AND m.pos < 0
2052 EXECUTE 'SELECT ' || normalizer.func || '(' ||
2053 quote_literal( value ) ||
2055 WHEN normalizer.param_count > 0
2056 THEN ',' || REPLACE(REPLACE(BTRIM(normalizer.params,'[]'),E'\'',E'\\\''),E'"',E'\'')
2066 SELECT n.func AS func,
2067 n.param_count AS param_count,
2069 FROM config.index_normalizer n
2070 JOIN config.metabib_field_index_norm_map m ON (m.norm = n.id)
2071 WHERE field = NEW.field AND m.pos >= 0
2073 EXECUTE 'SELECT ' || normalizer.func || '(' ||
2074 quote_literal( value ) ||
2076 WHEN normalizer.param_count > 0
2077 THEN ',' || REPLACE(REPLACE(BTRIM(normalizer.params,'[]'),E'\'',E'\\\''),E'"',E'\'')
2085 IF TG_TABLE_NAME::TEXT ~ 'browse_entry$' THEN
2087 value := ARRAY_TO_STRING(
2088 evergreen.regexp_split_to_array(value, E'\\W+'), ' '
2090 value := public.search_normalize(value);
2091 NEW.index_vector = to_tsvector(TG_ARGV[0]::regconfig, value);
2093 ELSIF TG_TABLE_NAME::TEXT ~ 'field_entry$' THEN
2096 SELECT DISTINCT m.ts_config, m.index_weight
2097 FROM config.metabib_class_ts_map m
2098 LEFT JOIN metabib.record_attr_vector_list r ON (r.source = NEW.source)
2099 LEFT JOIN config.coded_value_map ccvm ON (
2100 ccvm.ctype IN ('item_lang', 'language') AND
2101 ccvm.code = m.index_lang AND
2102 r.vlist @> intset(ccvm.id)
2104 WHERE m.field_class = TG_ARGV[0]
2106 AND (m.always OR NOT EXISTS (SELECT 1 FROM config.metabib_field_ts_map WHERE metabib_field = NEW.field))
2107 AND (m.index_lang IS NULL OR ccvm.id IS NOT NULL)
2109 SELECT DISTINCT m.ts_config, m.index_weight
2110 FROM config.metabib_field_ts_map m
2111 LEFT JOIN metabib.record_attr_vector_list r ON (r.source = NEW.source)
2112 LEFT JOIN config.coded_value_map ccvm ON (
2113 ccvm.ctype IN ('item_lang', 'language') AND
2114 ccvm.code = m.index_lang AND
2115 r.vlist @> intset(ccvm.id)
2117 WHERE m.metabib_field = NEW.field
2119 AND (m.index_lang IS NULL OR ccvm.id IS NOT NULL)
2120 ORDER BY index_weight ASC
2124 IF cur_weight IS NOT NULL AND cur_weight != ts_rec.index_weight THEN
2125 NEW.index_vector = NEW.index_vector || setweight(temp_vector::tsvector,cur_weight);
2129 cur_weight = ts_rec.index_weight;
2130 SELECT INTO temp_vector temp_vector || ' ' || to_tsvector(ts_rec.ts_config::regconfig, value)::TEXT;
2133 NEW.index_vector = NEW.index_vector || setweight(temp_vector::tsvector,cur_weight);
2135 NEW.index_vector = to_tsvector(TG_ARGV[0]::regconfig, value);
2140 $$ LANGUAGE PLPGSQL;
2143 CREATE TYPE metabib.flat_browse_entry_appearance AS (
2144 browse_entry BIGINT,
2149 sources INT, -- visible ones, that is
2150 asources INT, -- visible ones, that is
2151 row_number INT, -- internal use, sort of
2152 accurate BOOL, -- Count in sources field is accurate? Not
2153 -- if we had more than a browse superpage
2154 -- of records to look at.
2155 aaccurate BOOL, -- See previous comment...
2160 CREATE OR REPLACE FUNCTION metabib.browse_bib_pivot(
2163 ) RETURNS BIGINT AS $p$
2165 FROM metabib.browse_entry mbe
2166 JOIN metabib.browse_entry_def_map mbedm ON (
2167 mbedm.entry = mbe.id
2168 AND mbedm.def = ANY($1)
2170 WHERE mbe.sort_value >= public.naco_normalize($2)
2171 ORDER BY mbe.sort_value, mbe.value LIMIT 1;
2172 $p$ LANGUAGE SQL STABLE;
2174 CREATE OR REPLACE FUNCTION metabib.browse_authority_pivot(
2177 ) RETURNS BIGINT AS $p$
2179 FROM metabib.browse_entry mbe
2180 JOIN metabib.browse_entry_simple_heading_map mbeshm ON ( mbeshm.entry = mbe.id )
2181 JOIN authority.simple_heading ash ON ( mbeshm.simple_heading = ash.id )
2182 JOIN authority.control_set_auth_field_metabib_field_map_refs map ON (
2183 ash.atag = map.authority_field
2184 AND map.metabib_field = ANY($1)
2186 WHERE mbe.sort_value >= public.naco_normalize($2)
2187 ORDER BY mbe.sort_value, mbe.value LIMIT 1;
2188 $p$ LANGUAGE SQL STABLE;
2190 CREATE OR REPLACE FUNCTION metabib.browse_authority_refs_pivot(
2193 ) RETURNS BIGINT AS $p$
2195 FROM metabib.browse_entry mbe
2196 JOIN metabib.browse_entry_simple_heading_map mbeshm ON ( mbeshm.entry = mbe.id )
2197 JOIN authority.simple_heading ash ON ( mbeshm.simple_heading = ash.id )
2198 JOIN authority.control_set_auth_field_metabib_field_map_refs_only map ON (
2199 ash.atag = map.authority_field
2200 AND map.metabib_field = ANY($1)
2202 WHERE mbe.sort_value >= public.naco_normalize($2)
2203 ORDER BY mbe.sort_value, mbe.value LIMIT 1;
2204 $p$ LANGUAGE SQL STABLE;
2206 CREATE OR REPLACE FUNCTION metabib.browse_pivot(
2209 ) RETURNS BIGINT AS $p$
2210 SELECT id FROM metabib.browse_entry
2212 metabib.browse_bib_pivot($1, $2),
2213 metabib.browse_authority_refs_pivot($1,$2) -- only look in 4xx, 5xx, 7xx of authority
2215 ORDER BY sort_value, value LIMIT 1;
2216 $p$ LANGUAGE SQL STABLE;
2219 CREATE OR REPLACE FUNCTION metabib.staged_browse(
2223 context_locations INT[],
2225 browse_superpage_size INT,
2226 count_up_from_zero BOOL, -- if false, count down from -1
2229 ) RETURNS SETOF metabib.flat_browse_entry_appearance AS $p$
2237 result_row metabib.flat_browse_entry_appearance%ROWTYPE;
2238 results_skipped INT := 0;
2239 row_counter INT := 0;
2244 all_records BIGINT[];
2245 all_brecords BIGINT[];
2246 all_arecords BIGINT[];
2247 superpage_of_records BIGINT[];
2250 IF count_up_from_zero THEN
2256 OPEN curs FOR EXECUTE query;
2259 FETCH curs INTO rec;
2261 IF result_row.pivot_point IS NOT NULL THEN
2262 RETURN NEXT result_row;
2268 -- Gather aggregate data based on the MBE row we're looking at now, authority axis
2269 SELECT INTO all_arecords, result_row.sees, afields
2270 ARRAY_AGG(DISTINCT abl.bib), -- bibs to check for visibility
2271 STRING_AGG(DISTINCT aal.source::TEXT, $$,$$), -- authority record ids
2272 ARRAY_AGG(DISTINCT map.metabib_field) -- authority-tag-linked CMF rows
2274 FROM metabib.browse_entry_simple_heading_map mbeshm
2275 JOIN authority.simple_heading ash ON ( mbeshm.simple_heading = ash.id )
2276 JOIN authority.authority_linking aal ON ( ash.record = aal.source )
2277 JOIN authority.bib_linking abl ON ( aal.target = abl.authority )
2278 JOIN authority.control_set_auth_field_metabib_field_map_refs map ON (
2279 ash.atag = map.authority_field
2280 AND map.metabib_field = ANY(fields)
2282 WHERE mbeshm.entry = rec.id;
2285 -- Gather aggregate data based on the MBE row we're looking at now, bib axis
2286 SELECT INTO all_brecords, result_row.authorities, bfields
2287 ARRAY_AGG(DISTINCT source),
2288 STRING_AGG(DISTINCT authority::TEXT, $$,$$),
2289 ARRAY_AGG(DISTINCT def)
2290 FROM metabib.browse_entry_def_map
2291 WHERE entry = rec.id
2292 AND def = ANY(fields);
2294 SELECT INTO result_row.fields STRING_AGG(DISTINCT x::TEXT, $$,$$) FROM UNNEST(afields || bfields) x;
2296 result_row.sources := 0;
2297 result_row.asources := 0;
2299 -- Bib-linked vis checking
2300 IF ARRAY_UPPER(all_brecords,1) IS NOT NULL THEN
2302 full_end := ARRAY_LENGTH(all_brecords, 1);
2303 superpage_size := COALESCE(browse_superpage_size, full_end);
2305 slice_end := superpage_size;
2307 WHILE result_row.sources = 0 AND slice_start <= full_end LOOP
2308 superpage_of_records := all_brecords[slice_start:slice_end];
2310 'SELECT NULL::BIGINT AS id, ARRAY[r] AS records, ' ||
2311 '1::INT AS rel FROM (SELECT UNNEST(' ||
2312 quote_literal(superpage_of_records) || '::BIGINT[]) AS r) rr';
2314 -- We use search.query_parser_fts() for visibility testing.
2315 -- We're calling it once per browse-superpage worth of records
2316 -- out of the set of records related to a given mbe, until we've
2317 -- either exhausted that set of records or found at least 1
2320 SELECT INTO result_row.sources visible
2321 FROM search.query_parser_fts(
2322 context_org, NULL, qpfts_query, NULL,
2323 context_locations, 0, NULL, NULL, FALSE, staff, FALSE
2325 WHERE qpfts.rel IS NULL;
2327 slice_start := slice_start + superpage_size;
2328 slice_end := slice_end + superpage_size;
2331 -- Accurate? Well, probably.
2332 result_row.accurate := browse_superpage_size IS NULL OR
2333 browse_superpage_size >= full_end;
2337 -- Authority-linked vis checking
2338 IF ARRAY_UPPER(all_arecords,1) IS NOT NULL THEN
2340 full_end := ARRAY_LENGTH(all_arecords, 1);
2341 superpage_size := COALESCE(browse_superpage_size, full_end);
2343 slice_end := superpage_size;
2345 WHILE result_row.asources = 0 AND slice_start <= full_end LOOP
2346 superpage_of_records := all_arecords[slice_start:slice_end];
2348 'SELECT NULL::BIGINT AS id, ARRAY[r] AS records, ' ||
2349 '1::INT AS rel FROM (SELECT UNNEST(' ||
2350 quote_literal(superpage_of_records) || '::BIGINT[]) AS r) rr';
2352 -- We use search.query_parser_fts() for visibility testing.
2353 -- We're calling it once per browse-superpage worth of records
2354 -- out of the set of records related to a given mbe, via
2355 -- authority until we've either exhausted that set of records
2356 -- or found at least 1 visible record.
2358 SELECT INTO result_row.asources visible
2359 FROM search.query_parser_fts(
2360 context_org, NULL, qpfts_query, NULL,
2361 context_locations, 0, NULL, NULL, FALSE, staff, FALSE
2363 WHERE qpfts.rel IS NULL;
2365 slice_start := slice_start + superpage_size;
2366 slice_end := slice_end + superpage_size;
2370 -- Accurate? Well, probably.
2371 result_row.aaccurate := browse_superpage_size IS NULL OR
2372 browse_superpage_size >= full_end;
2376 IF result_row.sources > 0 OR result_row.asources > 0 THEN
2378 -- The function that calls this function needs row_number in order
2379 -- to correctly order results from two different runs of this
2381 result_row.row_number := row_number;
2383 -- Now, if row_counter is still less than limit, return a row. If
2384 -- not, but it is less than next_pivot_pos, continue on without
2385 -- returning actual result rows until we find
2386 -- that next pivot, and return it.
2388 IF row_counter < result_limit THEN
2389 result_row.browse_entry := rec.id;
2390 result_row.value := rec.value;
2392 RETURN NEXT result_row;
2394 result_row.browse_entry := NULL;
2395 result_row.authorities := NULL;
2396 result_row.fields := NULL;
2397 result_row.value := NULL;
2398 result_row.sources := NULL;
2399 result_row.sees := NULL;
2400 result_row.accurate := NULL;
2401 result_row.aaccurate := NULL;
2402 result_row.pivot_point := rec.id;
2404 IF row_counter >= next_pivot_pos THEN
2405 RETURN NEXT result_row;
2410 IF count_up_from_zero THEN
2411 row_number := row_number + 1;
2413 row_number := row_number - 1;
2416 -- row_counter is different from row_number.
2417 -- It simply counts up from zero so that we know when
2418 -- we've reached our limit.
2419 row_counter := row_counter + 1;
2423 $p$ LANGUAGE PLPGSQL;
2426 CREATE OR REPLACE FUNCTION metabib.browse(
2429 context_org INT DEFAULT NULL,
2430 context_loc_group INT DEFAULT NULL,
2431 staff BOOL DEFAULT FALSE,
2432 pivot_id BIGINT DEFAULT NULL,
2433 result_limit INT DEFAULT 10
2434 ) RETURNS SETOF metabib.flat_browse_entry_appearance AS $p$
2439 pivot_sort_value TEXT;
2440 pivot_sort_fallback TEXT;
2441 context_locations INT[];
2442 browse_superpage_size INT;
2443 results_skipped INT := 0;
2447 forward_to_pivot INT;
2449 -- First, find the pivot if we were given a browse term but not a pivot.
2450 IF pivot_id IS NULL THEN
2451 pivot_id := metabib.browse_pivot(search_field, browse_term);
2454 SELECT INTO pivot_sort_value, pivot_sort_fallback
2455 sort_value, value FROM metabib.browse_entry WHERE id = pivot_id;
2457 -- Bail if we couldn't find a pivot.
2458 IF pivot_sort_value IS NULL THEN
2462 -- Transform the context_loc_group argument (if any) (logc at the
2463 -- TPAC layer) into a form we'll be able to use.
2464 IF context_loc_group IS NOT NULL THEN
2465 SELECT INTO context_locations ARRAY_AGG(location)
2466 FROM asset.copy_location_group_map
2467 WHERE lgroup = context_loc_group;
2470 -- Get the configured size of browse superpages.
2471 SELECT INTO browse_superpage_size value -- NULL ok
2472 FROM config.global_flag
2473 WHERE enabled AND name = 'opac.browse.holdings_visibility_test_limit';
2475 -- First we're going to search backward from the pivot, then we're going
2476 -- to search forward. In each direction, we need two limits. At the
2477 -- lesser of the two limits, we delineate the edge of the result set
2478 -- we're going to return. At the greater of the two limits, we find the
2479 -- pivot value that would represent an offset from the current pivot
2480 -- at a distance of one "page" in either direction, where a "page" is a
2481 -- result set of the size specified in the "result_limit" argument.
2483 -- The two limits in each direction make four derived values in total,
2484 -- and we calculate them now.
2485 back_limit := CEIL(result_limit::FLOAT / 2);
2486 back_to_pivot := result_limit;
2487 forward_limit := result_limit / 2;
2488 forward_to_pivot := result_limit - 1;
2490 -- This is the meat of the SQL query that finds browse entries. We'll
2491 -- pass this to a function which uses it with a cursor, so that individual
2492 -- rows may be fetched in a loop until some condition is satisfied, without
2493 -- waiting for a result set of fixed size to be collected all at once.
2498 FROM metabib.browse_entry mbe
2500 EXISTS ( -- are there any bibs using this mbe via the requested fields?
2502 FROM metabib.browse_entry_def_map mbedm
2503 WHERE mbedm.entry = mbe.id AND mbedm.def = ANY(' || quote_literal(search_field) || ')
2505 ) OR EXISTS ( -- are there any authorities using this mbe via the requested fields?
2507 FROM metabib.browse_entry_simple_heading_map mbeshm
2508 JOIN authority.simple_heading ash ON ( mbeshm.simple_heading = ash.id )
2509 JOIN authority.control_set_auth_field_metabib_field_map_refs map ON (
2510 ash.atag = map.authority_field
2511 AND map.metabib_field = ANY(' || quote_literal(search_field) || ')
2513 WHERE mbeshm.entry = mbe.id
2517 -- This is the variant of the query for browsing backward.
2518 back_query := core_query ||
2519 ' mbe.sort_value <= ' || quote_literal(pivot_sort_value) ||
2520 ' ORDER BY mbe.sort_value DESC, mbe.value DESC ';
2522 -- This variant browses forward.
2523 forward_query := core_query ||
2524 ' mbe.sort_value > ' || quote_literal(pivot_sort_value) ||
2525 ' ORDER BY mbe.sort_value, mbe.value ';
2527 -- We now call the function which applies a cursor to the provided
2528 -- queries, stopping at the appropriate limits and also giving us
2529 -- the next page's pivot.
2531 SELECT * FROM metabib.staged_browse(
2532 back_query, search_field, context_org, context_locations,
2533 staff, browse_superpage_size, TRUE, back_limit, back_to_pivot
2535 SELECT * FROM metabib.staged_browse(
2536 forward_query, search_field, context_org, context_locations,
2537 staff, browse_superpage_size, FALSE, forward_limit, forward_to_pivot
2538 ) ORDER BY row_number DESC;
2541 $p$ LANGUAGE PLPGSQL;
2543 CREATE OR REPLACE FUNCTION metabib.browse(
2546 context_org INT DEFAULT NULL,
2547 context_loc_group INT DEFAULT NULL,
2548 staff BOOL DEFAULT FALSE,
2549 pivot_id BIGINT DEFAULT NULL,
2550 result_limit INT DEFAULT 10
2551 ) RETURNS SETOF metabib.flat_browse_entry_appearance AS $p$
2553 RETURN QUERY SELECT * FROM metabib.browse(
2554 (SELECT COALESCE(ARRAY_AGG(id), ARRAY[]::INT[])
2555 FROM config.metabib_field WHERE field_class = search_class),
2564 $p$ LANGUAGE PLPGSQL;