--- /dev/null
+--Upgrade Script for 2.11.0 to 2.11.1
+\set eg_version '''2.11.1'''
+BEGIN;
+INSERT INTO config.upgrade_log (version, applied_to) VALUES ('2.11.1', :eg_version);
+
+SELECT evergreen.upgrade_deps_block_check('1001', :eg_version); -- stompro/gmcharlt
+
+CREATE INDEX action_usr_circ_history_usr_idx ON action.usr_circ_history ( usr );
+
+
+SELECT evergreen.upgrade_deps_block_check('1002', :eg_version);
+
+-- This is a placeholder for the backport of schema update 1002
+-- (adding es-ES to the list of locales. This script does nothing for
+-- rel_2_11 and later.
+
+
+SELECT evergreen.upgrade_deps_block_check('1003', :eg_version); -- gmcharlt/rhamby/csharp
+
+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 $func$
+DECLARE
+ new_mapping BOOL := TRUE;
+ source_count INT;
+ old_mr BIGINT;
+ tmp_mr metabib.metarecord%ROWTYPE;
+ deleted_mrs BIGINT[];
+BEGIN
+
+ -- We need to make sure we're not a deleted master record of an MR
+ IF bib_is_deleted THEN
+ FOR old_mr IN SELECT id FROM metabib.metarecord WHERE master_record = bib_id LOOP
+
+ IF NOT retain_deleted THEN -- Go away for any MR that we're master of, unless retained
+ DELETE FROM metabib.metarecord_source_map WHERE source = bib_id;
+ END IF;
+
+ -- Now, are there any more sources on this MR?
+ SELECT COUNT(*) INTO source_count FROM metabib.metarecord_source_map WHERE metarecord = old_mr;
+
+ IF source_count = 0 AND NOT retain_deleted THEN -- No other records
+ deleted_mrs := ARRAY_APPEND(deleted_mrs, old_mr); -- Just in case...
+ DELETE FROM metabib.metarecord WHERE id = old_mr;
+
+ ELSE -- indeed there are. Update it with a null cache and recalcualated master record
+ UPDATE metabib.metarecord
+ SET mods = NULL,
+ master_record = ( SELECT id FROM biblio.record_entry WHERE fingerprint = fp AND NOT deleted ORDER BY quality DESC LIMIT 1)
+ WHERE id = old_mr;
+ END IF;
+ END LOOP;
+
+ ELSE -- insert or update
+
+ 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
+
+ -- Find the first fingerprint-matching
+ IF old_mr IS NULL AND fp = tmp_mr.fingerprint THEN
+ old_mr := tmp_mr.id;
+ new_mapping := FALSE;
+
+ ELSE -- Our fingerprint changed ... maybe remove the old MR
+ DELETE FROM metabib.metarecord_source_map WHERE metarecord = tmp_mr.id AND source = bib_id; -- remove the old source mapping
+ SELECT COUNT(*) INTO source_count FROM metabib.metarecord_source_map WHERE metarecord = tmp_mr.id;
+ IF source_count = 0 THEN -- No other records
+ deleted_mrs := ARRAY_APPEND(deleted_mrs, tmp_mr.id);
+ DELETE FROM metabib.metarecord WHERE id = tmp_mr.id;
+ END IF;
+ END IF;
+
+ END LOOP;
+
+ -- we found no suitable, preexisting MR based on old source maps
+ IF old_mr IS NULL THEN
+ SELECT id INTO old_mr FROM metabib.metarecord WHERE fingerprint = fp; -- is there one for our current fingerprint?
+
+ IF old_mr IS NULL THEN -- nope, create one and grab its id
+ INSERT INTO metabib.metarecord ( fingerprint, master_record ) VALUES ( fp, bib_id );
+ SELECT id INTO old_mr FROM metabib.metarecord WHERE fingerprint = fp;
+
+ ELSE -- indeed there is. update it with a null cache and recalcualated master record
+ UPDATE metabib.metarecord
+ SET mods = NULL,
+ master_record = ( SELECT id FROM biblio.record_entry WHERE fingerprint = fp AND NOT deleted ORDER BY quality DESC LIMIT 1)
+ WHERE id = old_mr;
+ END IF;
+
+ ELSE -- there was one we already attached to, update its mods cache and master_record
+ UPDATE metabib.metarecord
+ SET mods = NULL,
+ master_record = ( SELECT id FROM biblio.record_entry WHERE fingerprint = fp AND NOT deleted ORDER BY quality DESC LIMIT 1)
+ WHERE id = old_mr;
+ END IF;
+
+ IF new_mapping THEN
+ INSERT INTO metabib.metarecord_source_map (metarecord, source) VALUES (old_mr, bib_id); -- new source mapping
+ END IF;
+
+ END IF;
+
+ IF ARRAY_UPPER(deleted_mrs,1) > 0 THEN
+ 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
+ END IF;
+
+ RETURN old_mr;
+
+END;
+$func$ LANGUAGE PLPGSQL;
+
+COMMIT;