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 CONTINUE WHEN ind_data.value IS NULL OR ind_data.sort_value IS NULL;
831 value_prepped := metabib.browse_normalize(ind_data.value, ind_data.field);
832 SELECT INTO mbe_row * FROM metabib.browse_entry
833 WHERE value = value_prepped AND sort_value = ind_data.sort_value;
836 mbe_id := mbe_row.id;
838 INSERT INTO metabib.browse_entry
839 ( value, sort_value ) VALUES
840 ( value_prepped, ind_data.sort_value );
842 mbe_id := CURRVAL('metabib.browse_entry_id_seq'::REGCLASS);
845 INSERT INTO metabib.browse_entry_def_map (entry, def, source, authority)
846 VALUES (mbe_id, ind_data.field, ind_data.source, ind_data.authority);
849 IF ind_data.search_field AND NOT b_skip_search THEN
850 -- Avoid inserting duplicate rows
851 EXECUTE 'SELECT 1 FROM metabib.' || ind_data.field_class ||
852 '_field_entry WHERE field = $1 AND source = $2 AND value = $3'
853 INTO mbe_id USING ind_data.field, ind_data.source, ind_data.value;
854 -- RAISE NOTICE 'Search for an already matching row returned %', mbe_id;
855 IF mbe_id IS NULL THEN
857 INSERT INTO metabib.$$ || ind_data.field_class || $$_field_entry (field, source, value)
859 quote_literal(ind_data.field) || $$, $$ ||
860 quote_literal(ind_data.source) || $$, $$ ||
861 quote_literal(ind_data.value) ||
868 IF NOT b_skip_search THEN
869 PERFORM metabib.update_combined_index_vectors(bib_id);
874 $func$ LANGUAGE PLPGSQL;
876 -- default to a space joiner
877 CREATE OR REPLACE FUNCTION biblio.extract_metabib_field_entry ( BIGINT ) RETURNS SETOF metabib.field_entry_template AS $func$
878 SELECT * FROM biblio.extract_metabib_field_entry($1, ' ');
881 CREATE OR REPLACE FUNCTION authority.flatten_marc ( rid BIGINT ) RETURNS SETOF authority.full_rec AS $func$
883 auth authority.record_entry%ROWTYPE;
884 output authority.full_rec%ROWTYPE;
887 SELECT INTO auth * FROM authority.record_entry WHERE id = rid;
889 FOR field IN SELECT * FROM vandelay.flatten_marc( auth.marc ) LOOP
890 output.record := rid;
891 output.ind1 := field.ind1;
892 output.ind2 := field.ind2;
893 output.tag := field.tag;
894 output.subfield := field.subfield;
895 output.value := field.value;
900 $func$ LANGUAGE PLPGSQL;
902 CREATE OR REPLACE FUNCTION biblio.flatten_marc ( rid BIGINT ) RETURNS SETOF metabib.full_rec AS $func$
904 bib biblio.record_entry%ROWTYPE;
905 output metabib.full_rec%ROWTYPE;
908 SELECT INTO bib * FROM biblio.record_entry WHERE id = rid;
910 FOR field IN SELECT * FROM vandelay.flatten_marc( bib.marc ) LOOP
911 output.record := rid;
912 output.ind1 := field.ind1;
913 output.ind2 := field.ind2;
914 output.tag := field.tag;
915 output.subfield := field.subfield;
916 output.value := field.value;
921 $func$ LANGUAGE PLPGSQL;
923 CREATE OR REPLACE FUNCTION vandelay.marc21_record_type( marc TEXT ) RETURNS config.marc21_rec_type_map AS $func$
930 retval config.marc21_rec_type_map%ROWTYPE;
932 ldr := oils_xpath_string( '//*[local-name()="leader"]', marc );
934 IF ldr IS NULL OR ldr = '' THEN
935 SELECT * INTO retval FROM config.marc21_rec_type_map WHERE code = 'BKS';
939 SELECT * INTO tval_rec FROM config.marc21_ff_pos_map WHERE fixed_field = 'Type' LIMIT 1; -- They're all the same
940 SELECT * INTO bval_rec FROM config.marc21_ff_pos_map WHERE fixed_field = 'BLvl' LIMIT 1; -- They're all the same
943 tval := SUBSTRING( ldr, tval_rec.start_pos + 1, tval_rec.length );
944 bval := SUBSTRING( ldr, bval_rec.start_pos + 1, bval_rec.length );
946 -- RAISE NOTICE 'type %, blvl %, ldr %', tval, bval, ldr;
948 SELECT * INTO retval FROM config.marc21_rec_type_map WHERE type_val LIKE '%' || tval || '%' AND blvl_val LIKE '%' || bval || '%';
951 IF retval.code IS NULL THEN
952 SELECT * INTO retval FROM config.marc21_rec_type_map WHERE code = 'BKS';
957 $func$ LANGUAGE PLPGSQL;
959 CREATE OR REPLACE FUNCTION biblio.marc21_record_type( rid BIGINT ) RETURNS config.marc21_rec_type_map AS $func$
960 SELECT * FROM vandelay.marc21_record_type( (SELECT marc FROM biblio.record_entry WHERE id = $1) );
963 CREATE OR REPLACE FUNCTION vandelay.marc21_extract_fixed_field_list( marc TEXT, ff TEXT ) RETURNS TEXT[] AS $func$
969 collection TEXT[] := '{}'::TEXT[];
971 rtype := (vandelay.marc21_record_type( marc )).code;
972 FOR ff_pos IN SELECT * FROM config.marc21_ff_pos_map WHERE fixed_field = ff AND rec_type = rtype ORDER BY tag DESC LOOP
973 IF ff_pos.tag = 'ldr' THEN
974 val := oils_xpath_string('//*[local-name()="leader"]', marc);
975 IF val IS NOT NULL THEN
976 val := SUBSTRING( val, ff_pos.start_pos + 1, ff_pos.length );
977 collection := collection || val;
980 FOR tag_data IN SELECT value FROM UNNEST( oils_xpath( '//*[@tag="' || UPPER(ff_pos.tag) || '"]/text()', marc ) ) x(value) LOOP
981 val := SUBSTRING( tag_data.value, ff_pos.start_pos + 1, ff_pos.length );
982 collection := collection || val;
985 val := REPEAT( ff_pos.default_val, ff_pos.length );
986 collection := collection || val;
991 $func$ LANGUAGE PLPGSQL;
993 CREATE OR REPLACE FUNCTION vandelay.marc21_extract_fixed_field( marc TEXT, ff TEXT ) RETURNS TEXT AS $func$
1000 rtype := (vandelay.marc21_record_type( marc )).code;
1001 FOR ff_pos IN SELECT * FROM config.marc21_ff_pos_map WHERE fixed_field = ff AND rec_type = rtype ORDER BY tag DESC LOOP
1002 IF ff_pos.tag = 'ldr' THEN
1003 val := oils_xpath_string('//*[local-name()="leader"]', marc);
1004 IF val IS NOT NULL THEN
1005 val := SUBSTRING( val, ff_pos.start_pos + 1, ff_pos.length );
1009 FOR tag_data IN SELECT value FROM UNNEST( oils_xpath( '//*[@tag="' || UPPER(ff_pos.tag) || '"]/text()', marc ) ) x(value) LOOP
1010 val := SUBSTRING( tag_data.value, ff_pos.start_pos + 1, ff_pos.length );
1014 val := REPEAT( ff_pos.default_val, ff_pos.length );
1020 $func$ LANGUAGE PLPGSQL;
1022 CREATE OR REPLACE FUNCTION biblio.marc21_extract_fixed_field_list( rid BIGINT, ff TEXT ) RETURNS TEXT[] AS $func$
1023 SELECT * FROM vandelay.marc21_extract_fixed_field_list( (SELECT marc FROM biblio.record_entry WHERE id = $1), $2 );
1024 $func$ LANGUAGE SQL;
1026 CREATE OR REPLACE FUNCTION biblio.marc21_extract_fixed_field( rid BIGINT, ff TEXT ) RETURNS TEXT AS $func$
1027 SELECT * FROM vandelay.marc21_extract_fixed_field( (SELECT marc FROM biblio.record_entry WHERE id = $1), $2 );
1028 $func$ LANGUAGE SQL;
1030 -- CREATE TYPE biblio.record_ff_map AS (record BIGINT, ff_name TEXT, ff_value TEXT);
1031 CREATE OR REPLACE FUNCTION vandelay.marc21_extract_all_fixed_fields( marc TEXT ) RETURNS SETOF biblio.record_ff_map AS $func$
1036 output biblio.record_ff_map%ROWTYPE;
1038 rtype := (vandelay.marc21_record_type( marc )).code;
1040 FOR ff_pos IN SELECT * FROM config.marc21_ff_pos_map WHERE rec_type = rtype ORDER BY tag DESC LOOP
1041 output.ff_name := ff_pos.fixed_field;
1042 output.ff_value := NULL;
1044 IF ff_pos.tag = 'ldr' THEN
1045 output.ff_value := oils_xpath_string('//*[local-name()="leader"]', marc);
1046 IF output.ff_value IS NOT NULL THEN
1047 output.ff_value := SUBSTRING( output.ff_value, ff_pos.start_pos + 1, ff_pos.length );
1049 output.ff_value := NULL;
1052 FOR tag_data IN SELECT value FROM UNNEST( oils_xpath( '//*[@tag="' || UPPER(ff_pos.tag) || '"]/text()', marc ) ) x(value) LOOP
1053 output.ff_value := SUBSTRING( tag_data, ff_pos.start_pos + 1, ff_pos.length );
1054 IF output.ff_value IS NULL THEN output.ff_value := REPEAT( ff_pos.default_val, ff_pos.length ); END IF;
1056 output.ff_value := NULL;
1064 $func$ LANGUAGE PLPGSQL;
1066 CREATE OR REPLACE FUNCTION biblio.marc21_extract_all_fixed_fields( rid BIGINT ) RETURNS SETOF biblio.record_ff_map AS $func$
1067 SELECT $1 AS record, ff_name, ff_value FROM vandelay.marc21_extract_all_fixed_fields( (SELECT marc FROM biblio.record_entry WHERE id = $1) );
1068 $func$ LANGUAGE SQL;
1070 CREATE OR REPLACE FUNCTION biblio.marc21_physical_characteristics( rid BIGINT ) RETURNS SETOF biblio.marc21_physical_characteristics AS $func$
1071 SELECT id, $1 AS record, ptype, subfield, value FROM vandelay.marc21_physical_characteristics( (SELECT marc FROM biblio.record_entry WHERE id = $1) );
1072 $func$ LANGUAGE SQL;
1074 CREATE OR REPLACE FUNCTION biblio.extract_quality ( marc TEXT, best_lang TEXT, best_type TEXT ) RETURNS INT AS $func$
1087 IF marc IS NULL OR marc = '' THEN
1091 -- First, the count of tags
1092 qual := ARRAY_UPPER(oils_xpath('*[local-name()="datafield"]', marc), 1);
1094 -- now go through a bunch of pain to get the record type
1095 IF best_type IS NOT NULL THEN
1096 ldr := (oils_xpath('//*[local-name()="leader"]/text()', marc))[1];
1098 IF ldr IS NOT NULL THEN
1099 SELECT * INTO tval_rec FROM config.marc21_ff_pos_map WHERE fixed_field = 'Type' LIMIT 1; -- They're all the same
1100 SELECT * INTO bval_rec FROM config.marc21_ff_pos_map WHERE fixed_field = 'BLvl' LIMIT 1; -- They're all the same
1103 tval := SUBSTRING( ldr, tval_rec.start_pos + 1, tval_rec.length );
1104 bval := SUBSTRING( ldr, bval_rec.start_pos + 1, bval_rec.length );
1106 -- RAISE NOTICE 'type %, blvl %, ldr %', tval, bval, ldr;
1108 SELECT * INTO type_map FROM config.marc21_rec_type_map WHERE type_val LIKE '%' || tval || '%' AND blvl_val LIKE '%' || bval || '%';
1110 IF type_map.code IS NOT NULL THEN
1111 IF best_type = type_map.code THEN
1112 qual := qual + qual / 2;
1115 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
1116 ff_tag_data := SUBSTRING((oils_xpath('//*[@tag="' || ff_pos.tag || '"]/text()',marc))[1], ff_pos.start_pos + 1, ff_pos.length);
1117 IF ff_tag_data = best_lang THEN
1125 -- Now look for some quality metrics
1127 IF ARRAY_UPPER(oils_xpath('//*[@tag="040"]/*[@code="a" and contains(.,"DLC")]', marc), 1) = 1 THEN
1132 IF (oils_xpath('//*[@tag="003"]/text()', marc))[1] ~* E'oclo?c' THEN
1139 $func$ LANGUAGE PLPGSQL;
1141 CREATE OR REPLACE FUNCTION biblio.extract_fingerprint ( marc text ) RETURNS TEXT AS $func$
1143 idx config.biblio_fingerprint%ROWTYPE;
1144 xfrm config.xml_transform%ROWTYPE;
1146 transformed_xml TEXT;
1148 xml_node_list TEXT[];
1150 output_text TEXT := '';
1153 IF marc IS NULL OR marc = '' THEN
1157 -- Loop over the indexing entries
1158 FOR idx IN SELECT * FROM config.biblio_fingerprint ORDER BY format, id LOOP
1160 SELECT INTO xfrm * from config.xml_transform WHERE name = idx.format;
1162 -- See if we can skip the XSLT ... it's expensive
1163 IF prev_xfrm IS NULL OR prev_xfrm <> xfrm.name THEN
1164 -- Can't skip the transform
1165 IF xfrm.xslt <> '---' THEN
1166 transformed_xml := oils_xslt_process(marc,xfrm.xslt);
1168 transformed_xml := marc;
1171 prev_xfrm := xfrm.name;
1174 raw_text := COALESCE(
1182 ARRAY[ARRAY[xfrm.prefix, xfrm.namespace_uri]]
1191 raw_text := REGEXP_REPLACE(raw_text, E'\\[.+?\\]', E'');
1192 raw_text := REGEXP_REPLACE(raw_text, E'\\mthe\\M|\\man?d?d\\M', E'', 'g'); -- arg! the pain!
1194 IF idx.first_word IS TRUE THEN
1195 raw_text := REGEXP_REPLACE(raw_text, E'^(\\w+).*?$', E'\\1');
1198 output_text := output_text || REGEXP_REPLACE(raw_text, E'\\s+', '', 'g');
1205 $func$ LANGUAGE PLPGSQL;
1207 -- BEFORE UPDATE OR INSERT trigger for biblio.record_entry
1208 CREATE OR REPLACE FUNCTION biblio.fingerprint_trigger () RETURNS TRIGGER AS $func$
1211 -- For TG_ARGV, first param is language (like 'eng'), second is record type (like 'BKS')
1213 IF NEW.deleted IS TRUE THEN -- we don't much care, then, do we?
1217 NEW.fingerprint := biblio.extract_fingerprint(NEW.marc);
1218 NEW.quality := biblio.extract_quality(NEW.marc, TG_ARGV[0], TG_ARGV[1]);
1223 $func$ LANGUAGE PLPGSQL;
1225 CREATE OR REPLACE FUNCTION metabib.reingest_metabib_full_rec( bib_id BIGINT ) RETURNS VOID AS $func$
1227 PERFORM * FROM config.internal_flag WHERE name = 'ingest.assume_inserts_only' AND enabled;
1229 DELETE FROM metabib.real_full_rec WHERE record = bib_id;
1231 INSERT INTO metabib.real_full_rec (record, tag, ind1, ind2, subfield, value)
1232 SELECT record, tag, ind1, ind2, subfield, value FROM biblio.flatten_marc( bib_id );
1236 $func$ LANGUAGE PLPGSQL;
1238 CREATE OR REPLACE FUNCTION biblio.extract_located_uris( bib_id BIGINT, marcxml TEXT, editor_id INT ) RETURNS VOID AS $func$
1245 uri_owner_list TEXT[];
1253 -- Clear any URI mappings and call numbers for this bib.
1254 -- This leads to acn / auricnm inflation, but also enables
1255 -- old acn/auricnm's to go away and for bibs to be deleted.
1256 FOR uri_cn_id IN SELECT id FROM asset.call_number WHERE record = bib_id AND label = '##URI##' AND NOT deleted LOOP
1257 DELETE FROM asset.uri_call_number_map WHERE call_number = uri_cn_id;
1258 DELETE FROM asset.call_number WHERE id = uri_cn_id;
1261 uris := oils_xpath('//*[@tag="856" and (@ind1="4" or @ind1="1") and (@ind2="0" or @ind2="1")]',marcxml);
1262 IF ARRAY_UPPER(uris,1) > 0 THEN
1263 FOR i IN 1 .. ARRAY_UPPER(uris, 1) LOOP
1264 -- First we pull info out of the 856
1267 uri_href := (oils_xpath('//*[@code="u"]/text()',uri_xml))[1];
1268 uri_label := (oils_xpath('//*[@code="y"]/text()|//*[@code="3"]/text()',uri_xml))[1];
1269 uri_use := (oils_xpath('//*[@code="z"]/text()|//*[@code="2"]/text()|//*[@code="n"]/text()',uri_xml))[1];
1271 IF uri_label IS NULL THEN
1272 uri_label := uri_href;
1274 CONTINUE WHEN uri_href IS NULL;
1276 -- Get the distinct list of libraries wanting to use
1278 DISTINCT REGEXP_REPLACE(
1280 $re$^.*?\((\w+)\).*$$re$,
1283 ) INTO uri_owner_list
1286 '//*[@code="9"]/text()|//*[@code="w"]/text()|//*[@code="n"]/text()',
1291 IF ARRAY_UPPER(uri_owner_list,1) > 0 THEN
1293 -- look for a matching uri
1294 IF uri_use IS NULL THEN
1295 SELECT id INTO uri_id
1297 WHERE label = uri_label AND href = uri_href AND use_restriction IS NULL AND active
1298 ORDER BY id LIMIT 1;
1299 IF NOT FOUND THEN -- create one
1300 INSERT INTO asset.uri (label, href, use_restriction) VALUES (uri_label, uri_href, uri_use);
1301 SELECT id INTO uri_id
1303 WHERE label = uri_label AND href = uri_href AND use_restriction IS NULL AND active;
1306 SELECT id INTO uri_id
1308 WHERE label = uri_label AND href = uri_href AND use_restriction = uri_use AND active
1309 ORDER BY id LIMIT 1;
1310 IF NOT FOUND THEN -- create one
1311 INSERT INTO asset.uri (label, href, use_restriction) VALUES (uri_label, uri_href, uri_use);
1312 SELECT id INTO uri_id
1314 WHERE label = uri_label AND href = uri_href AND use_restriction = uri_use AND active;
1318 FOR j IN 1 .. ARRAY_UPPER(uri_owner_list, 1) LOOP
1319 uri_owner := uri_owner_list[j];
1321 SELECT id INTO uri_owner_id FROM actor.org_unit WHERE shortname = uri_owner;
1322 CONTINUE WHEN NOT FOUND;
1324 -- we need a call number to link through
1325 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;
1327 INSERT INTO asset.call_number (owning_lib, record, create_date, edit_date, creator, editor, label)
1328 VALUES (uri_owner_id, bib_id, 'now', 'now', editor_id, editor_id, '##URI##');
1329 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;
1332 -- now, link them if they're not already
1333 SELECT id INTO uri_map_id FROM asset.uri_call_number_map WHERE call_number = uri_cn_id AND uri = uri_id;
1335 INSERT INTO asset.uri_call_number_map (call_number, uri) VALUES (uri_cn_id, uri_id);
1347 $func$ LANGUAGE PLPGSQL;
1349 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$
1351 new_mapping BOOL := TRUE;
1354 tmp_mr metabib.metarecord%ROWTYPE;
1355 deleted_mrs BIGINT[];
1358 -- We need to make sure we're not a deleted master record of an MR
1359 IF bib_is_deleted THEN
1360 FOR old_mr IN SELECT id FROM metabib.metarecord WHERE master_record = bib_id LOOP
1362 IF NOT retain_deleted THEN -- Go away for any MR that we're master of, unless retained
1363 DELETE FROM metabib.metarecord_source_map WHERE source = bib_id;
1366 -- Now, are there any more sources on this MR?
1367 SELECT COUNT(*) INTO source_count FROM metabib.metarecord_source_map WHERE metarecord = old_mr;
1369 IF source_count = 0 AND NOT retain_deleted THEN -- No other records
1370 deleted_mrs := ARRAY_APPEND(deleted_mrs, old_mr); -- Just in case...
1371 DELETE FROM metabib.metarecord WHERE id = old_mr;
1373 ELSE -- indeed there are. Update it with a null cache and recalcualated master record
1374 UPDATE metabib.metarecord
1376 master_record = ( SELECT id FROM biblio.record_entry WHERE fingerprint = fp AND NOT deleted ORDER BY quality DESC LIMIT 1)
1381 ELSE -- insert or update
1383 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
1385 -- Find the first fingerprint-matching
1386 IF old_mr IS NULL AND fp = tmp_mr.fingerprint THEN
1387 old_mr := tmp_mr.id;
1388 new_mapping := FALSE;
1390 ELSE -- Our fingerprint changed ... maybe remove the old MR
1391 DELETE FROM metabib.metarecord_source_map WHERE metarecord = old_mr AND source = bib_id; -- remove the old source mapping
1392 SELECT COUNT(*) INTO source_count FROM metabib.metarecord_source_map WHERE metarecord = tmp_mr.id;
1393 IF source_count = 0 THEN -- No other records
1394 deleted_mrs := ARRAY_APPEND(deleted_mrs, tmp_mr.id);
1395 DELETE FROM metabib.metarecord WHERE id = tmp_mr.id;
1401 -- we found no suitable, preexisting MR based on old source maps
1402 IF old_mr IS NULL THEN
1403 SELECT id INTO old_mr FROM metabib.metarecord WHERE fingerprint = fp; -- is there one for our current fingerprint?
1405 IF old_mr IS NULL THEN -- nope, create one and grab its id
1406 INSERT INTO metabib.metarecord ( fingerprint, master_record ) VALUES ( fp, bib_id );
1407 SELECT id INTO old_mr FROM metabib.metarecord WHERE fingerprint = fp;
1409 ELSE -- indeed there is. update it with a null cache and recalcualated master record
1410 UPDATE metabib.metarecord
1412 master_record = ( SELECT id FROM biblio.record_entry WHERE fingerprint = fp AND NOT deleted ORDER BY quality DESC LIMIT 1)
1416 ELSE -- there was one we already attached to, update its mods cache and master_record
1417 UPDATE metabib.metarecord
1419 master_record = ( SELECT id FROM biblio.record_entry WHERE fingerprint = fp AND NOT deleted ORDER BY quality DESC LIMIT 1)
1424 INSERT INTO metabib.metarecord_source_map (metarecord, source) VALUES (old_mr, bib_id); -- new source mapping
1429 IF ARRAY_UPPER(deleted_mrs,1) > 0 THEN
1430 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
1436 $func$ LANGUAGE PLPGSQL;
1439 CREATE OR REPLACE FUNCTION biblio.map_authority_linking (bibid BIGINT, marc TEXT) RETURNS BIGINT AS $func$
1440 DELETE FROM authority.bib_linking WHERE bib = $1;
1441 INSERT INTO authority.bib_linking (bib, authority)
1444 FROM ( SELECT DISTINCT $1 AS bib,
1445 BTRIM(remove_paren_substring(txt))::BIGINT AS authority
1446 FROM unnest(oils_xpath('//*[@code="0"]/text()',$2)) x(txt)
1447 WHERE BTRIM(remove_paren_substring(txt)) ~ $re$^\d+$$re$
1448 ) y JOIN authority.record_entry r ON r.id = y.authority;
1450 $func$ LANGUAGE SQL;
1452 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 $func$
1454 transformed_xml TEXT;
1455 rmarc TEXT := prmarc;
1459 xfrm config.xml_transform%ROWTYPE;
1460 attr_vector INT[] := '{}'::INT[];
1461 attr_vector_tmp INT[];
1462 attr_list TEXT[] := pattr_list;
1464 norm_attr_value TEXT[];
1466 attr_def config.record_attr_definition%ROWTYPE;
1467 ccvm_row config.coded_value_map%ROWTYPE;
1470 IF attr_list IS NULL OR rdeleted THEN -- need to do the full dance on INSERT or undelete
1471 SELECT ARRAY_AGG(name) INTO attr_list FROM config.record_attr_definition;
1474 IF rmarc IS NULL THEN
1475 SELECT marc INTO rmarc FROM biblio.record_entry WHERE id = rid;
1478 FOR attr_def IN SELECT * FROM config.record_attr_definition WHERE NOT composite AND name = ANY( attr_list ) ORDER BY format LOOP
1480 attr_value := '{}'::TEXT[];
1481 norm_attr_value := '{}'::TEXT[];
1482 attr_vector_tmp := '{}'::INT[];
1484 SELECT * INTO ccvm_row FROM config.coded_value_map c WHERE c.ctype = attr_def.name LIMIT 1;
1486 -- tag+sf attrs only support SVF
1487 IF attr_def.tag IS NOT NULL THEN -- tag (and optional subfield list) selection
1488 SELECT ARRAY[ARRAY_TO_STRING(ARRAY_AGG(value), COALESCE(attr_def.joiner,' '))] INTO attr_value
1489 FROM (SELECT * FROM metabib.full_rec ORDER BY tag, subfield) AS x
1491 AND tag LIKE attr_def.tag
1493 WHEN attr_def.sf_list IS NOT NULL
1494 THEN POSITION(subfield IN attr_def.sf_list) > 0
1501 ELSIF attr_def.fixed_field IS NOT NULL THEN -- a named fixed field, see config.marc21_ff_pos_map.fixed_field
1502 attr_value := vandelay.marc21_extract_fixed_field_list(rmarc, attr_def.fixed_field);
1504 IF NOT attr_def.multi THEN
1505 attr_value := ARRAY[attr_value[1]];
1508 ELSIF attr_def.xpath IS NOT NULL THEN -- and xpath expression
1510 SELECT INTO xfrm * FROM config.xml_transform WHERE name = attr_def.format;
1512 -- See if we can skip the XSLT ... it's expensive
1513 IF prev_xfrm IS NULL OR prev_xfrm <> xfrm.name THEN
1514 -- Can't skip the transform
1515 IF xfrm.xslt <> '---' THEN
1516 transformed_xml := oils_xslt_process(rmarc,xfrm.xslt);
1518 transformed_xml := rmarc;
1521 prev_xfrm := xfrm.name;
1524 IF xfrm.name IS NULL THEN
1525 -- just grab the marcxml (empty) transform
1526 SELECT INTO xfrm * FROM config.xml_transform WHERE xslt = '---' LIMIT 1;
1527 prev_xfrm := xfrm.name;
1530 FOR tmp_xml IN SELECT oils_xpath(attr_def.xpath, transformed_xml, ARRAY[ARRAY[xfrm.prefix, xfrm.namespace_uri]]) LOOP
1531 tmp_val := oils_xpath_string(
1534 COALESCE(attr_def.joiner,' '),
1535 ARRAY[ARRAY[xfrm.prefix, xfrm.namespace_uri]]
1537 IF tmp_val IS NOT NULL AND BTRIM(tmp_val) <> '' THEN
1538 attr_value := attr_value || tmp_val;
1539 EXIT WHEN NOT attr_def.multi;
1543 ELSIF attr_def.phys_char_sf IS NOT NULL THEN -- a named Physical Characteristic, see config.marc21_physical_characteristic_*_map
1544 SELECT ARRAY_AGG(m.value) INTO attr_value
1545 FROM vandelay.marc21_physical_characteristics(rmarc) v
1546 LEFT JOIN config.marc21_physical_characteristic_value_map m ON (m.id = v.value)
1547 WHERE v.subfield = attr_def.phys_char_sf AND (m.value IS NOT NULL AND BTRIM(m.value) <> '')
1548 AND ( ccvm_row.id IS NULL OR ( ccvm_row.id IS NOT NULL AND v.id IS NOT NULL) );
1550 IF NOT attr_def.multi THEN
1551 attr_value := ARRAY[attr_value[1]];
1556 -- apply index normalizers to attr_value
1557 FOR tmp_val IN SELECT value FROM UNNEST(attr_value) x(value) LOOP
1559 SELECT n.func AS func,
1560 n.param_count AS param_count,
1562 FROM config.index_normalizer n
1563 JOIN config.record_attr_index_norm_map m ON (m.norm = n.id)
1564 WHERE attr = attr_def.name
1566 EXECUTE 'SELECT ' || normalizer.func || '(' ||
1567 COALESCE( quote_literal( tmp_val ), 'NULL' ) ||
1569 WHEN normalizer.param_count > 0
1570 THEN ',' || REPLACE(REPLACE(BTRIM(normalizer.params,'[]'),E'\'',E'\\\''),E'"',E'\'')
1576 IF tmp_val IS NOT NULL AND BTRIM(tmp_val) <> '' THEN
1577 norm_attr_value := norm_attr_value || tmp_val;
1581 IF attr_def.filter THEN
1582 -- Create unknown uncontrolled values and find the IDs of the values
1583 IF ccvm_row.id IS NULL THEN
1584 FOR tmp_val IN SELECT value FROM UNNEST(norm_attr_value) x(value) LOOP
1585 IF tmp_val IS NOT NULL AND BTRIM(tmp_val) <> '' THEN
1586 BEGIN -- use subtransaction to isolate unique constraint violations
1587 INSERT INTO metabib.uncontrolled_record_attr_value ( attr, value ) VALUES ( attr_def.name, tmp_val );
1588 EXCEPTION WHEN unique_violation THEN END;
1592 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 );
1594 SELECT ARRAY_AGG(id) INTO attr_vector_tmp FROM config.coded_value_map WHERE ctype = attr_def.name AND code = ANY( norm_attr_value );
1597 -- Add the new value to the vector
1598 attr_vector := attr_vector || attr_vector_tmp;
1601 IF attr_def.sorter AND norm_attr_value[1] IS NOT NULL THEN
1602 DELETE FROM metabib.record_sorter WHERE source = rid AND attr = attr_def.name;
1603 INSERT INTO metabib.record_sorter (source, attr, value) VALUES (rid, attr_def.name, norm_attr_value[1]);
1608 /* We may need to rewrite the vlist to contain
1609 the intersection of new values for requested
1610 attrs and old values for ignored attrs. To
1611 do this, we take the old attr vlist and
1612 subtract any values that are valid for the
1613 requested attrs, and then add back the new
1614 set of attr values. */
1616 IF ARRAY_LENGTH(pattr_list, 1) > 0 THEN
1617 SELECT vlist INTO attr_vector_tmp FROM metabib.record_attr_vector_list WHERE source = rid;
1618 SELECT attr_vector_tmp - ARRAY_AGG(id::INT) INTO attr_vector_tmp FROM metabib.full_attr_id_map WHERE attr = ANY (pattr_list);
1619 attr_vector := attr_vector || attr_vector_tmp;
1622 -- On to composite attributes, now that the record attrs have been pulled. Processed in name order, so later composite
1623 -- attributes can depend on earlier ones.
1624 PERFORM metabib.compile_composite_attr_cache_init();
1625 FOR attr_def IN SELECT * FROM config.record_attr_definition WHERE composite AND name = ANY( attr_list ) ORDER BY name LOOP
1627 FOR ccvm_row IN SELECT * FROM config.coded_value_map c WHERE c.ctype = attr_def.name ORDER BY value LOOP
1629 tmp_val := metabib.compile_composite_attr( ccvm_row.id );
1630 CONTINUE WHEN tmp_val IS NULL OR tmp_val = ''; -- nothing to do
1632 IF attr_def.filter THEN
1633 IF attr_vector @@ tmp_val::query_int THEN
1634 attr_vector = attr_vector + intset(ccvm_row.id);
1635 EXIT WHEN NOT attr_def.multi;
1639 IF attr_def.sorter THEN
1640 IF attr_vector @@ tmp_val THEN
1641 DELETE FROM metabib.record_sorter WHERE source = rid AND attr = attr_def.name;
1642 INSERT INTO metabib.record_sorter (source, attr, value) VALUES (rid, attr_def.name, ccvm_row.code);
1650 IF ARRAY_LENGTH(attr_vector, 1) > 0 THEN
1651 IF rdeleted THEN -- initial insert OR revivication
1652 DELETE FROM metabib.record_attr_vector_list WHERE source = rid;
1653 INSERT INTO metabib.record_attr_vector_list (source, vlist) VALUES (rid, attr_vector);
1655 UPDATE metabib.record_attr_vector_list SET vlist = attr_vector WHERE source = rid;
1661 $func$ LANGUAGE PLPGSQL;
1664 -- AFTER UPDATE OR INSERT trigger for biblio.record_entry
1665 CREATE OR REPLACE FUNCTION biblio.indexing_ingest_or_delete () RETURNS TRIGGER AS $func$
1670 IF NEW.deleted THEN -- If this bib is deleted
1672 PERFORM * FROM config.internal_flag WHERE
1673 name = 'ingest.metarecord_mapping.preserve_on_delete' AND enabled;
1675 tmp_bool := FOUND; -- Just in case this is changed by some other statement
1677 PERFORM metabib.remap_metarecord_for_bib( NEW.id, NEW.fingerprint, TRUE, tmp_bool );
1679 IF NOT tmp_bool THEN
1680 -- One needs to keep these around to support searches
1681 -- with the #deleted modifier, so one should turn on the named
1682 -- internal flag for that functionality.
1683 DELETE FROM metabib.record_attr_vector_list WHERE source = NEW.id;
1686 DELETE FROM authority.bib_linking WHERE bib = NEW.id; -- Avoid updating fields in bibs that are no longer visible
1687 DELETE FROM biblio.peer_bib_copy_map WHERE peer_record = NEW.id; -- Separate any multi-homed items
1688 DELETE FROM metabib.browse_entry_def_map WHERE source = NEW.id; -- Don't auto-suggest deleted bibs
1689 RETURN NEW; -- and we're done
1692 IF TG_OP = 'UPDATE' THEN -- re-ingest?
1693 PERFORM * FROM config.internal_flag WHERE name = 'ingest.reingest.force_on_same_marc' AND enabled;
1695 IF NOT FOUND AND OLD.marc = NEW.marc THEN -- don't do anything if the MARC didn't change
1700 -- Record authority linking
1701 PERFORM * FROM config.internal_flag WHERE name = 'ingest.disable_authority_linking' AND enabled;
1703 PERFORM biblio.map_authority_linking( NEW.id, NEW.marc );
1706 -- Flatten and insert the mfr data
1707 PERFORM * FROM config.internal_flag WHERE name = 'ingest.disable_metabib_full_rec' AND enabled;
1709 PERFORM metabib.reingest_metabib_full_rec(NEW.id);
1711 -- Now we pull out attribute data, which is dependent on the mfr for all but XPath-based fields
1712 PERFORM * FROM config.internal_flag WHERE name = 'ingest.disable_metabib_rec_descriptor' AND enabled;
1714 PERFORM metabib.reingest_record_attributes(NEW.id, NULL, NEW.marc, TG_OP = 'INSERT' OR OLD.deleted);
1718 -- Gather and insert the field entry data
1719 PERFORM metabib.reingest_metabib_field_entries(NEW.id);
1721 -- Located URI magic
1722 IF TG_OP = 'INSERT' THEN
1723 PERFORM * FROM config.internal_flag WHERE name = 'ingest.disable_located_uri' AND enabled;
1725 PERFORM biblio.extract_located_uris( NEW.id, NEW.marc, NEW.editor );
1728 PERFORM * FROM config.internal_flag WHERE name = 'ingest.disable_located_uri' AND enabled;
1730 PERFORM biblio.extract_located_uris( NEW.id, NEW.marc, NEW.editor );
1734 -- (re)map metarecord-bib linking
1735 IF TG_OP = 'INSERT' THEN -- if not deleted and performing an insert, check for the flag
1736 PERFORM * FROM config.internal_flag WHERE name = 'ingest.metarecord_mapping.skip_on_insert' AND enabled;
1738 PERFORM metabib.remap_metarecord_for_bib( NEW.id, NEW.fingerprint );
1740 ELSE -- we're doing an update, and we're not deleted, remap
1741 PERFORM * FROM config.internal_flag WHERE name = 'ingest.metarecord_mapping.skip_on_update' AND enabled;
1743 PERFORM metabib.remap_metarecord_for_bib( NEW.id, NEW.fingerprint );
1749 $func$ LANGUAGE PLPGSQL;
1751 CREATE OR REPLACE FUNCTION metabib.browse_normalize(facet_text TEXT, mapped_field INT) RETURNS TEXT AS $$
1757 SELECT n.func AS func,
1758 n.param_count AS param_count,
1760 FROM config.index_normalizer n
1761 JOIN config.metabib_field_index_norm_map m ON (m.norm = n.id)
1762 WHERE m.field = mapped_field AND m.pos < 0
1765 EXECUTE 'SELECT ' || normalizer.func || '(' ||
1766 quote_literal( facet_text ) ||
1768 WHEN normalizer.param_count > 0
1769 THEN ',' || REPLACE(REPLACE(BTRIM(normalizer.params,'[]'),E'\'',E'\\\''),E'"',E'\'')
1772 ')' INTO facet_text;
1779 $$ LANGUAGE PLPGSQL;
1782 -- This mimics a specific part of QueryParser, turning the first part of a
1783 -- classed search (search_class) into a set of classes and possibly fields.
1784 -- search_class might look like "author" or "title|proper" or "ti|uniform"
1785 -- or "au" or "au|corporate|personal" or anything like that, where the first
1786 -- element of the list you get by separating on the "|" character is either
1787 -- a registered class (config.metabib_class) or an alias
1788 -- (config.metabib_search_alias), and the rest of any such elements are
1789 -- fields (config.metabib_field).
1791 FUNCTION metabib.search_class_to_registered_components(search_class TEXT)
1792 RETURNS SETOF RECORD AS $func$
1794 search_parts TEXT[];
1796 search_part_count INTEGER;
1798 registered_class config.metabib_class%ROWTYPE;
1799 registered_alias config.metabib_search_alias%ROWTYPE;
1800 registered_field config.metabib_field%ROWTYPE;
1802 search_parts := REGEXP_SPLIT_TO_ARRAY(search_class, E'\\|');
1804 search_part_count := ARRAY_LENGTH(search_parts, 1);
1805 IF search_part_count = 0 THEN
1808 SELECT INTO registered_class
1809 * FROM config.metabib_class WHERE name = search_parts[1];
1811 IF search_part_count < 2 THEN -- all fields
1812 rec := (registered_class.name, NULL::INTEGER);
1816 FOR field_name IN SELECT *
1817 FROM UNNEST(search_parts[2:search_part_count]) LOOP
1818 SELECT INTO registered_field
1819 * FROM config.metabib_field
1820 WHERE name = field_name AND
1821 field_class = registered_class.name;
1823 rec := (registered_class.name, registered_field.id);
1828 -- maybe we have an alias?
1829 SELECT INTO registered_alias
1830 * FROM config.metabib_search_alias WHERE alias=search_parts[1];
1834 IF search_part_count < 2 THEN -- return w/e the alias says
1836 registered_alias.field_class, registered_alias.field
1841 FOR field_name IN SELECT *
1842 FROM UNNEST(search_parts[2:search_part_count]) LOOP
1843 SELECT INTO registered_field
1844 * FROM config.metabib_field
1845 WHERE name = field_name AND
1846 field_class = registered_alias.field_class;
1849 registered_alias.field_class,
1860 $func$ LANGUAGE PLPGSQL ROWS 1;
1863 -- Given a string such as a user might type into a search box, prepare
1864 -- two changed variants for TO_TSQUERY(). See
1865 -- http://www.postgresql.org/docs/9.0/static/textsearch-controls.html
1866 -- The first variant is normalized to match indexed documents regardless
1867 -- of diacritics. The second variant keeps its diacritics for proper
1868 -- highlighting via TS_HEADLINE().
1870 FUNCTION metabib.autosuggest_prepare_tsquery(orig TEXT) RETURNS TEXT[] AS
1873 orig_ended_in_space BOOLEAN;
1878 orig_ended_in_space := orig ~ E'\\s$';
1880 orig := ARRAY_TO_STRING(
1881 evergreen.regexp_split_to_array(orig, E'\\W+'), ' '
1884 normalized := public.naco_normalize(orig); -- also trim()s
1885 plain := trim(orig);
1887 IF NOT orig_ended_in_space THEN
1888 plain := plain || ':*';
1889 normalized := normalized || ':*';
1892 plain := ARRAY_TO_STRING(
1893 evergreen.regexp_split_to_array(plain, E'\\s+'), ' & '
1895 normalized := ARRAY_TO_STRING(
1896 evergreen.regexp_split_to_array(normalized, E'\\s+'), ' & '
1899 RETURN ARRAY[normalized, plain];
1901 $$ LANGUAGE PLPGSQL;
1905 FUNCTION metabib.suggest_browse_entries(
1906 raw_query_text TEXT, -- actually typed by humans at the UI level
1907 search_class TEXT, -- 'alias' or 'class' or 'class|field..', etc
1908 headline_opts TEXT, -- markup options for ts_headline()
1909 visibility_org INTEGER,-- null if you don't want opac visibility test
1910 query_limit INTEGER,-- use in LIMIT clause of interal query
1911 normalization INTEGER -- argument to TS_RANK_CD()
1913 value TEXT, -- plain
1915 buoyant_and_class_match BOOL,
1917 field_weight INTEGER,
1920 match TEXT -- marked up
1923 prepared_query_texts TEXT[];
1925 plain_query TSQUERY;
1926 opac_visibility_join TEXT;
1927 search_class_join TEXT;
1930 prepared_query_texts := metabib.autosuggest_prepare_tsquery(raw_query_text);
1932 query := TO_TSQUERY('keyword', prepared_query_texts[1]);
1933 plain_query := TO_TSQUERY('keyword', prepared_query_texts[2]);
1935 visibility_org := NULLIF(visibility_org,-1);
1936 IF visibility_org IS NOT NULL THEN
1937 opac_visibility_join := '
1938 JOIN asset.opac_visible_copies aovc ON (
1939 aovc.record = x.source AND
1940 aovc.circ_lib IN (SELECT id FROM actor.org_unit_descendants($4))
1943 opac_visibility_join := '';
1946 -- The following determines whether we only provide suggestsons matching
1947 -- the user's selected search_class, or whether we show other suggestions
1948 -- too. The reason for MIN() is that for search_classes like
1949 -- 'title|proper|uniform' you would otherwise get multiple rows. The
1950 -- implication is that if title as a class doesn't have restrict,
1951 -- nor does the proper field, but the uniform field does, you're going
1952 -- to get 'false' for your overall evaluation of 'should we restrict?'
1953 -- To invert that, change from MIN() to MAX().
1957 MIN(cmc.restrict::INT) AS restrict_class,
1958 MIN(cmf.restrict::INT) AS restrict_field
1959 FROM metabib.search_class_to_registered_components(search_class)
1960 AS _registered (field_class TEXT, field INT)
1962 config.metabib_class cmc ON (cmc.name = _registered.field_class)
1964 config.metabib_field cmf ON (cmf.id = _registered.field);
1966 -- evaluate 'should we restrict?'
1967 IF r_fields.restrict_field::BOOL OR r_fields.restrict_class::BOOL THEN
1968 search_class_join := '
1970 metabib.search_class_to_registered_components($2)
1971 AS _registered (field_class TEXT, field INT) ON (
1972 (_registered.field IS NULL AND
1973 _registered.field_class = cmf.field_class) OR
1974 (_registered.field = cmf.id)
1978 search_class_join := '
1980 metabib.search_class_to_registered_components($2)
1981 AS _registered (field_class TEXT, field INT) ON (
1982 _registered.field_class = cmc.name
1987 RETURN QUERY EXECUTE '
1996 TS_HEADLINE(value, $7, $3)
1997 FROM (SELECT DISTINCT
2000 cmc.buoyant AND _registered.field_class IS NOT NULL AS push,
2001 _registered.field = cmf.id AS restrict,
2003 TS_RANK_CD(mbe.index_vector, $1, $6),
2006 FROM metabib.browse_entry_def_map mbedm
2007 JOIN (SELECT * FROM metabib.browse_entry WHERE index_vector @@ $1 LIMIT 10000) mbe ON (mbe.id = mbedm.entry)
2008 JOIN config.metabib_field cmf ON (cmf.id = mbedm.def)
2009 JOIN config.metabib_class cmc ON (cmf.field_class = cmc.name)
2010 ' || search_class_join || '
2011 ORDER BY 3 DESC, 4 DESC NULLS LAST, 5 DESC, 6 DESC, 7 DESC, 1 ASC
2013 ' || opac_visibility_join || '
2014 ORDER BY 3 DESC, 4 DESC NULLS LAST, 5 DESC, 6 DESC, 7 DESC, 1 ASC
2016 ' -- sic, repeat the order by clause in the outer select too
2018 query, search_class, headline_opts,
2019 visibility_org, query_limit, normalization, plain_query
2023 -- buoyant AND chosen class = match class
2024 -- chosen field = match field
2031 $func$ LANGUAGE PLPGSQL;
2033 CREATE OR REPLACE FUNCTION public.oils_tsearch2 () RETURNS TRIGGER AS $$
2037 temp_vector TEXT := '';
2043 NEW.index_vector = ''::tsvector;
2045 IF TG_TABLE_NAME::TEXT ~ 'field_entry$' THEN
2047 SELECT n.func AS func,
2048 n.param_count AS param_count,
2050 FROM config.index_normalizer n
2051 JOIN config.metabib_field_index_norm_map m ON (m.norm = n.id)
2052 WHERE field = NEW.field AND m.pos < 0
2054 EXECUTE 'SELECT ' || normalizer.func || '(' ||
2055 quote_literal( value ) ||
2057 WHEN normalizer.param_count > 0
2058 THEN ',' || REPLACE(REPLACE(BTRIM(normalizer.params,'[]'),E'\'',E'\\\''),E'"',E'\'')
2068 SELECT n.func AS func,
2069 n.param_count AS param_count,
2071 FROM config.index_normalizer n
2072 JOIN config.metabib_field_index_norm_map m ON (m.norm = n.id)
2073 WHERE field = NEW.field AND m.pos >= 0
2075 EXECUTE 'SELECT ' || normalizer.func || '(' ||
2076 quote_literal( value ) ||
2078 WHEN normalizer.param_count > 0
2079 THEN ',' || REPLACE(REPLACE(BTRIM(normalizer.params,'[]'),E'\'',E'\\\''),E'"',E'\'')
2087 IF TG_TABLE_NAME::TEXT ~ 'browse_entry$' THEN
2089 value := ARRAY_TO_STRING(
2090 evergreen.regexp_split_to_array(value, E'\\W+'), ' '
2092 value := public.search_normalize(value);
2093 NEW.index_vector = to_tsvector(TG_ARGV[0]::regconfig, value);
2095 ELSIF TG_TABLE_NAME::TEXT ~ 'field_entry$' THEN
2098 SELECT DISTINCT m.ts_config, m.index_weight
2099 FROM config.metabib_class_ts_map m
2100 LEFT JOIN metabib.record_attr_vector_list r ON (r.source = NEW.source)
2101 LEFT JOIN config.coded_value_map ccvm ON (
2102 ccvm.ctype IN ('item_lang', 'language') AND
2103 ccvm.code = m.index_lang AND
2104 r.vlist @> intset(ccvm.id)
2106 WHERE m.field_class = TG_ARGV[0]
2108 AND (m.always OR NOT EXISTS (SELECT 1 FROM config.metabib_field_ts_map WHERE metabib_field = NEW.field))
2109 AND (m.index_lang IS NULL OR ccvm.id IS NOT NULL)
2111 SELECT DISTINCT m.ts_config, m.index_weight
2112 FROM config.metabib_field_ts_map m
2113 LEFT JOIN metabib.record_attr_vector_list r ON (r.source = NEW.source)
2114 LEFT JOIN config.coded_value_map ccvm ON (
2115 ccvm.ctype IN ('item_lang', 'language') AND
2116 ccvm.code = m.index_lang AND
2117 r.vlist @> intset(ccvm.id)
2119 WHERE m.metabib_field = NEW.field
2121 AND (m.index_lang IS NULL OR ccvm.id IS NOT NULL)
2122 ORDER BY index_weight ASC
2126 IF cur_weight IS NOT NULL AND cur_weight != ts_rec.index_weight THEN
2127 NEW.index_vector = NEW.index_vector || setweight(temp_vector::tsvector,cur_weight);
2131 cur_weight = ts_rec.index_weight;
2132 SELECT INTO temp_vector temp_vector || ' ' || to_tsvector(ts_rec.ts_config::regconfig, value)::TEXT;
2135 NEW.index_vector = NEW.index_vector || setweight(temp_vector::tsvector,cur_weight);
2137 NEW.index_vector = to_tsvector(TG_ARGV[0]::regconfig, value);
2142 $$ LANGUAGE PLPGSQL;
2145 CREATE TYPE metabib.flat_browse_entry_appearance AS (
2146 browse_entry BIGINT,
2151 sources INT, -- visible ones, that is
2152 asources INT, -- visible ones, that is
2153 row_number INT, -- internal use, sort of
2154 accurate BOOL, -- Count in sources field is accurate? Not
2155 -- if we had more than a browse superpage
2156 -- of records to look at.
2157 aaccurate BOOL, -- See previous comment...
2162 CREATE OR REPLACE FUNCTION metabib.browse_bib_pivot(
2165 ) RETURNS BIGINT AS $p$
2167 FROM metabib.browse_entry mbe
2168 JOIN metabib.browse_entry_def_map mbedm ON (
2169 mbedm.entry = mbe.id
2170 AND mbedm.def = ANY($1)
2172 WHERE mbe.sort_value >= public.naco_normalize($2)
2173 ORDER BY mbe.sort_value, mbe.value LIMIT 1;
2174 $p$ LANGUAGE SQL STABLE;
2176 CREATE OR REPLACE FUNCTION metabib.browse_authority_pivot(
2179 ) RETURNS BIGINT AS $p$
2181 FROM metabib.browse_entry mbe
2182 JOIN metabib.browse_entry_simple_heading_map mbeshm ON ( mbeshm.entry = mbe.id )
2183 JOIN authority.simple_heading ash ON ( mbeshm.simple_heading = ash.id )
2184 JOIN authority.control_set_auth_field_metabib_field_map_refs map ON (
2185 ash.atag = map.authority_field
2186 AND map.metabib_field = ANY($1)
2188 WHERE mbe.sort_value >= public.naco_normalize($2)
2189 ORDER BY mbe.sort_value, mbe.value LIMIT 1;
2190 $p$ LANGUAGE SQL STABLE;
2192 CREATE OR REPLACE FUNCTION metabib.browse_authority_refs_pivot(
2195 ) RETURNS BIGINT AS $p$
2197 FROM metabib.browse_entry mbe
2198 JOIN metabib.browse_entry_simple_heading_map mbeshm ON ( mbeshm.entry = mbe.id )
2199 JOIN authority.simple_heading ash ON ( mbeshm.simple_heading = ash.id )
2200 JOIN authority.control_set_auth_field_metabib_field_map_refs_only map ON (
2201 ash.atag = map.authority_field
2202 AND map.metabib_field = ANY($1)
2204 WHERE mbe.sort_value >= public.naco_normalize($2)
2205 ORDER BY mbe.sort_value, mbe.value LIMIT 1;
2206 $p$ LANGUAGE SQL STABLE;
2208 CREATE OR REPLACE FUNCTION metabib.browse_pivot(
2211 ) RETURNS BIGINT AS $p$
2212 SELECT id FROM metabib.browse_entry
2214 metabib.browse_bib_pivot($1, $2),
2215 metabib.browse_authority_refs_pivot($1,$2) -- only look in 4xx, 5xx, 7xx of authority
2217 ORDER BY sort_value, value LIMIT 1;
2218 $p$ LANGUAGE SQL STABLE;
2221 CREATE OR REPLACE FUNCTION metabib.staged_browse(
2225 context_locations INT[],
2227 browse_superpage_size INT,
2228 count_up_from_zero BOOL, -- if false, count down from -1
2231 ) RETURNS SETOF metabib.flat_browse_entry_appearance AS $p$
2239 result_row metabib.flat_browse_entry_appearance%ROWTYPE;
2240 results_skipped INT := 0;
2241 row_counter INT := 0;
2246 all_records BIGINT[];
2247 all_brecords BIGINT[];
2248 all_arecords BIGINT[];
2249 superpage_of_records BIGINT[];
2252 IF count_up_from_zero THEN
2258 OPEN curs FOR EXECUTE query;
2261 FETCH curs INTO rec;
2263 IF result_row.pivot_point IS NOT NULL THEN
2264 RETURN NEXT result_row;
2270 -- Gather aggregate data based on the MBE row we're looking at now, authority axis
2271 SELECT INTO all_arecords, result_row.sees, afields
2272 ARRAY_AGG(DISTINCT abl.bib), -- bibs to check for visibility
2273 STRING_AGG(DISTINCT aal.source::TEXT, $$,$$), -- authority record ids
2274 ARRAY_AGG(DISTINCT map.metabib_field) -- authority-tag-linked CMF rows
2276 FROM metabib.browse_entry_simple_heading_map mbeshm
2277 JOIN authority.simple_heading ash ON ( mbeshm.simple_heading = ash.id )
2278 JOIN authority.authority_linking aal ON ( ash.record = aal.source )
2279 JOIN authority.bib_linking abl ON ( aal.target = abl.authority )
2280 JOIN authority.control_set_auth_field_metabib_field_map_refs map ON (
2281 ash.atag = map.authority_field
2282 AND map.metabib_field = ANY(fields)
2284 WHERE mbeshm.entry = rec.id;
2287 -- Gather aggregate data based on the MBE row we're looking at now, bib axis
2288 SELECT INTO all_brecords, result_row.authorities, bfields
2289 ARRAY_AGG(DISTINCT source),
2290 STRING_AGG(DISTINCT authority::TEXT, $$,$$),
2291 ARRAY_AGG(DISTINCT def)
2292 FROM metabib.browse_entry_def_map
2293 WHERE entry = rec.id
2294 AND def = ANY(fields);
2296 SELECT INTO result_row.fields STRING_AGG(DISTINCT x::TEXT, $$,$$) FROM UNNEST(afields || bfields) x;
2298 result_row.sources := 0;
2299 result_row.asources := 0;
2301 -- Bib-linked vis checking
2302 IF ARRAY_UPPER(all_brecords,1) IS NOT NULL THEN
2304 full_end := ARRAY_LENGTH(all_brecords, 1);
2305 superpage_size := COALESCE(browse_superpage_size, full_end);
2307 slice_end := superpage_size;
2309 WHILE result_row.sources = 0 AND slice_start <= full_end LOOP
2310 superpage_of_records := all_brecords[slice_start:slice_end];
2312 'SELECT NULL::BIGINT AS id, ARRAY[r] AS records, ' ||
2313 '1::INT AS rel FROM (SELECT UNNEST(' ||
2314 quote_literal(superpage_of_records) || '::BIGINT[]) AS r) rr';
2316 -- We use search.query_parser_fts() for visibility testing.
2317 -- We're calling it once per browse-superpage worth of records
2318 -- out of the set of records related to a given mbe, until we've
2319 -- either exhausted that set of records or found at least 1
2322 SELECT INTO result_row.sources visible
2323 FROM search.query_parser_fts(
2324 context_org, NULL, qpfts_query, NULL,
2325 context_locations, 0, NULL, NULL, FALSE, staff, FALSE
2327 WHERE qpfts.rel IS NULL;
2329 slice_start := slice_start + superpage_size;
2330 slice_end := slice_end + superpage_size;
2333 -- Accurate? Well, probably.
2334 result_row.accurate := browse_superpage_size IS NULL OR
2335 browse_superpage_size >= full_end;
2339 -- Authority-linked vis checking
2340 IF ARRAY_UPPER(all_arecords,1) IS NOT NULL THEN
2342 full_end := ARRAY_LENGTH(all_arecords, 1);
2343 superpage_size := COALESCE(browse_superpage_size, full_end);
2345 slice_end := superpage_size;
2347 WHILE result_row.asources = 0 AND slice_start <= full_end LOOP
2348 superpage_of_records := all_arecords[slice_start:slice_end];
2350 'SELECT NULL::BIGINT AS id, ARRAY[r] AS records, ' ||
2351 '1::INT AS rel FROM (SELECT UNNEST(' ||
2352 quote_literal(superpage_of_records) || '::BIGINT[]) AS r) rr';
2354 -- We use search.query_parser_fts() for visibility testing.
2355 -- We're calling it once per browse-superpage worth of records
2356 -- out of the set of records related to a given mbe, via
2357 -- authority until we've either exhausted that set of records
2358 -- or found at least 1 visible record.
2360 SELECT INTO result_row.asources visible
2361 FROM search.query_parser_fts(
2362 context_org, NULL, qpfts_query, NULL,
2363 context_locations, 0, NULL, NULL, FALSE, staff, FALSE
2365 WHERE qpfts.rel IS NULL;
2367 slice_start := slice_start + superpage_size;
2368 slice_end := slice_end + superpage_size;
2372 -- Accurate? Well, probably.
2373 result_row.aaccurate := browse_superpage_size IS NULL OR
2374 browse_superpage_size >= full_end;
2378 IF result_row.sources > 0 OR result_row.asources > 0 THEN
2380 -- The function that calls this function needs row_number in order
2381 -- to correctly order results from two different runs of this
2383 result_row.row_number := row_number;
2385 -- Now, if row_counter is still less than limit, return a row. If
2386 -- not, but it is less than next_pivot_pos, continue on without
2387 -- returning actual result rows until we find
2388 -- that next pivot, and return it.
2390 IF row_counter < result_limit THEN
2391 result_row.browse_entry := rec.id;
2392 result_row.value := rec.value;
2394 RETURN NEXT result_row;
2396 result_row.browse_entry := NULL;
2397 result_row.authorities := NULL;
2398 result_row.fields := NULL;
2399 result_row.value := NULL;
2400 result_row.sources := NULL;
2401 result_row.sees := NULL;
2402 result_row.accurate := NULL;
2403 result_row.aaccurate := NULL;
2404 result_row.pivot_point := rec.id;
2406 IF row_counter >= next_pivot_pos THEN
2407 RETURN NEXT result_row;
2412 IF count_up_from_zero THEN
2413 row_number := row_number + 1;
2415 row_number := row_number - 1;
2418 -- row_counter is different from row_number.
2419 -- It simply counts up from zero so that we know when
2420 -- we've reached our limit.
2421 row_counter := row_counter + 1;
2425 $p$ LANGUAGE PLPGSQL;
2428 CREATE OR REPLACE FUNCTION metabib.browse(
2431 context_org INT DEFAULT NULL,
2432 context_loc_group INT DEFAULT NULL,
2433 staff BOOL DEFAULT FALSE,
2434 pivot_id BIGINT DEFAULT NULL,
2435 result_limit INT DEFAULT 10
2436 ) RETURNS SETOF metabib.flat_browse_entry_appearance AS $p$
2441 pivot_sort_value TEXT;
2442 pivot_sort_fallback TEXT;
2443 context_locations INT[];
2444 browse_superpage_size INT;
2445 results_skipped INT := 0;
2449 forward_to_pivot INT;
2451 -- First, find the pivot if we were given a browse term but not a pivot.
2452 IF pivot_id IS NULL THEN
2453 pivot_id := metabib.browse_pivot(search_field, browse_term);
2456 SELECT INTO pivot_sort_value, pivot_sort_fallback
2457 sort_value, value FROM metabib.browse_entry WHERE id = pivot_id;
2459 -- Bail if we couldn't find a pivot.
2460 IF pivot_sort_value IS NULL THEN
2464 -- Transform the context_loc_group argument (if any) (logc at the
2465 -- TPAC layer) into a form we'll be able to use.
2466 IF context_loc_group IS NOT NULL THEN
2467 SELECT INTO context_locations ARRAY_AGG(location)
2468 FROM asset.copy_location_group_map
2469 WHERE lgroup = context_loc_group;
2472 -- Get the configured size of browse superpages.
2473 SELECT INTO browse_superpage_size value -- NULL ok
2474 FROM config.global_flag
2475 WHERE enabled AND name = 'opac.browse.holdings_visibility_test_limit';
2477 -- First we're going to search backward from the pivot, then we're going
2478 -- to search forward. In each direction, we need two limits. At the
2479 -- lesser of the two limits, we delineate the edge of the result set
2480 -- we're going to return. At the greater of the two limits, we find the
2481 -- pivot value that would represent an offset from the current pivot
2482 -- at a distance of one "page" in either direction, where a "page" is a
2483 -- result set of the size specified in the "result_limit" argument.
2485 -- The two limits in each direction make four derived values in total,
2486 -- and we calculate them now.
2487 back_limit := CEIL(result_limit::FLOAT / 2);
2488 back_to_pivot := result_limit;
2489 forward_limit := result_limit / 2;
2490 forward_to_pivot := result_limit - 1;
2492 -- This is the meat of the SQL query that finds browse entries. We'll
2493 -- pass this to a function which uses it with a cursor, so that individual
2494 -- rows may be fetched in a loop until some condition is satisfied, without
2495 -- waiting for a result set of fixed size to be collected all at once.
2500 FROM metabib.browse_entry mbe
2502 EXISTS ( -- are there any bibs using this mbe via the requested fields?
2504 FROM metabib.browse_entry_def_map mbedm
2505 WHERE mbedm.entry = mbe.id AND mbedm.def = ANY(' || quote_literal(search_field) || ')
2507 ) OR EXISTS ( -- are there any authorities using this mbe via the requested fields?
2509 FROM metabib.browse_entry_simple_heading_map mbeshm
2510 JOIN authority.simple_heading ash ON ( mbeshm.simple_heading = ash.id )
2511 JOIN authority.control_set_auth_field_metabib_field_map_refs map ON (
2512 ash.atag = map.authority_field
2513 AND map.metabib_field = ANY(' || quote_literal(search_field) || ')
2515 WHERE mbeshm.entry = mbe.id
2519 -- This is the variant of the query for browsing backward.
2520 back_query := core_query ||
2521 ' mbe.sort_value <= ' || quote_literal(pivot_sort_value) ||
2522 ' ORDER BY mbe.sort_value DESC, mbe.value DESC ';
2524 -- This variant browses forward.
2525 forward_query := core_query ||
2526 ' mbe.sort_value > ' || quote_literal(pivot_sort_value) ||
2527 ' ORDER BY mbe.sort_value, mbe.value ';
2529 -- We now call the function which applies a cursor to the provided
2530 -- queries, stopping at the appropriate limits and also giving us
2531 -- the next page's pivot.
2533 SELECT * FROM metabib.staged_browse(
2534 back_query, search_field, context_org, context_locations,
2535 staff, browse_superpage_size, TRUE, back_limit, back_to_pivot
2537 SELECT * FROM metabib.staged_browse(
2538 forward_query, search_field, context_org, context_locations,
2539 staff, browse_superpage_size, FALSE, forward_limit, forward_to_pivot
2540 ) ORDER BY row_number DESC;
2543 $p$ LANGUAGE PLPGSQL;
2545 CREATE OR REPLACE FUNCTION metabib.browse(
2548 context_org INT DEFAULT NULL,
2549 context_loc_group INT DEFAULT NULL,
2550 staff BOOL DEFAULT FALSE,
2551 pivot_id BIGINT DEFAULT NULL,
2552 result_limit INT DEFAULT 10
2553 ) RETURNS SETOF metabib.flat_browse_entry_appearance AS $p$
2555 RETURN QUERY SELECT * FROM metabib.browse(
2556 (SELECT COALESCE(ARRAY_AGG(id), ARRAY[]::INT[])
2557 FROM config.metabib_field WHERE field_class = search_class),
2566 $p$ LANGUAGE PLPGSQL;