--- /dev/null
+--Upgrade Script for 3.6.2 to 3.6.3
+\set eg_version '''3.6.3'''
+BEGIN;
+INSERT INTO config.upgrade_log (version, applied_to) VALUES ('3.6.3', :eg_version);
+
+SELECT evergreen.upgrade_deps_block_check('1248', :eg_version);
+
+DO LANGUAGE plpgsql $$
+DECLARE
+ ind RECORD;
+ tablist TEXT;
+BEGIN
+
+ -- We only want to mess with gist indexes in stock Evergreen.
+ -- If you've added your own convert them or don't as you see fit.
+ PERFORM
+ FROM pg_index idx
+ JOIN pg_class cls ON cls.oid=idx.indexrelid
+ JOIN pg_namespace sc ON sc.oid = cls.relnamespace
+ JOIN pg_class tab ON tab.oid=idx.indrelid
+ JOIN pg_attribute at ON (at.attnum = ANY(idx.indkey) AND at.attrelid = tab.oid)
+ JOIN pg_am am ON am.oid=cls.relam
+ WHERE am.amname = 'gist'
+ AND cls.relname IN (
+ 'authority_full_rec_index_vector_idx',
+ 'authority_simple_heading_index_vector_idx',
+ 'metabib_identifier_field_entry_index_vector_idx',
+ 'metabib_combined_identifier_field_entry_index_vector_idx',
+ 'metabib_title_field_entry_index_vector_idx',
+ 'metabib_combined_title_field_entry_index_vector_idx',
+ 'metabib_author_field_entry_index_vector_idx',
+ 'metabib_combined_author_field_entry_index_vector_idx',
+ 'metabib_subject_field_entry_index_vector_idx',
+ 'metabib_combined_subject_field_entry_index_vector_idx',
+ 'metabib_keyword_field_entry_index_vector_idx',
+ 'metabib_combined_keyword_field_entry_index_vector_idx',
+ 'metabib_series_field_entry_index_vector_idx',
+ 'metabib_combined_series_field_entry_index_vector_idx',
+ 'metabib_full_rec_index_vector_idx'
+ );
+
+ IF NOT FOUND THEN
+ RETURN;
+ END IF;
+
+ tablist := '';
+
+ RAISE NOTICE 'Converting GIST indexes into GIN indexes...';
+
+ FOR ind IN SELECT sc.nspname AS sch, tab.relname AS tab, cls.relname AS idx, at.attname AS col
+ FROM pg_index idx
+ JOIN pg_class cls ON cls.oid=idx.indexrelid
+ JOIN pg_namespace sc ON sc.oid = cls.relnamespace
+ JOIN pg_class tab ON tab.oid=idx.indrelid
+ JOIN pg_attribute at ON (at.attnum = ANY(idx.indkey) AND at.attrelid = tab.oid)
+ JOIN pg_am am ON am.oid=cls.relam
+ WHERE am.amname = 'gist'
+ AND cls.relname IN (
+ 'authority_full_rec_index_vector_idx',
+ 'authority_simple_heading_index_vector_idx',
+ 'metabib_identifier_field_entry_index_vector_idx',
+ 'metabib_combined_identifier_field_entry_index_vector_idx',
+ 'metabib_title_field_entry_index_vector_idx',
+ 'metabib_combined_title_field_entry_index_vector_idx',
+ 'metabib_author_field_entry_index_vector_idx',
+ 'metabib_combined_author_field_entry_index_vector_idx',
+ 'metabib_subject_field_entry_index_vector_idx',
+ 'metabib_combined_subject_field_entry_index_vector_idx',
+ 'metabib_keyword_field_entry_index_vector_idx',
+ 'metabib_combined_keyword_field_entry_index_vector_idx',
+ 'metabib_series_field_entry_index_vector_idx',
+ 'metabib_combined_series_field_entry_index_vector_idx',
+ 'metabib_full_rec_index_vector_idx'
+ )
+ LOOP
+ -- Move existing index out of the way so there's no difference between new databases and upgraded databases
+ EXECUTE FORMAT('ALTER INDEX %I.%I RENAME TO %I_gist', ind.sch, ind.idx, ind.idx);
+
+ -- Meet the new index, same as the old index (almost)
+ EXECUTE FORMAT('CREATE INDEX %I ON %I.%I USING GIN (%I)', ind.idx, ind.sch, ind.tab, ind.col);
+
+ -- And drop the old index
+ EXECUTE FORMAT('DROP INDEX %I.%I_gist', ind.sch, ind.idx);
+
+ tablist := tablist || ' ' || ind.sch || '.' || ind.tab || E'\n';
+
+ END LOOP;
+
+ RAISE NOTICE E'Conversion Complete.\n\n You should run a VACUUM ANALYZE on the following tables soon:\n%', tablist;
+
+END $$;
+
+
+
+SELECT evergreen.upgrade_deps_block_check('1258', :eg_version);
+
+UPDATE config.metabib_field
+SET xpath = '//*[@tag=''260'' or @tag=''264''][1]'
+WHERE id = 52 AND xpath = '//*[@tag=''260'']';
+
+COMMIT;
+
+-- Update auditor tables to catch changes to source tables.
+-- Can be removed/skipped if there were no schema changes.
+SELECT auditor.update_auditors();