Mercurial > libervia-pubsub
diff db/sat_pubsub_update_5_7.sql @ 433:920440200570
PostgreSQL: don't use `regconfig` and `GENERATED` column anymore
/!\ pgsql schema needs to be updated /!\
/!\ Minimal PostgreSQL required version is back to 9.5 /!\
`regconfig` is using system table, and `pg_upgrade` can't handle that, causing trouble
when moving to a new major version of PostgreSQL.
To work around this, the `data_fts_cfg` column type in `items` has been changed from
`regconfig` to `text`.
GENERATED column can't be used with type casting to `regconfig`, so the data_fts column is
now generated with a trigger. As a result, the minimal requirement of PostgreSQL 12 is not
necessary anymore.
author | Goffi <goffi@goffi.org> |
---|---|
date | Thu, 14 Jan 2021 17:59:23 +0100 |
parents | |
children |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/db/sat_pubsub_update_5_7.sql Thu Jan 14 17:59:23 2021 +0100 @@ -0,0 +1,121 @@ +-- we check version of the database before doing anything +-- and stop execution if not good +\set ON_ERROR_STOP +DO $$ +DECLARE ver text; +BEGIN + SELECT value INTO ver FROM metadata WHERE key='version'; + IF NOT FOUND OR ver!='5' THEN + RAISE EXCEPTION 'This update file needs to be applied on database schema version 5, you use version %',ver; + END IF; +END$$; +\unset ON_ERROR_STOP +-- end of version check + +/* NOT NULL constraint was not applied to items.data */ +ALTER TABLE items ALTER COLUMN data SET NOT NULL; + +/* Full Text Search */ +ALTER TABLE nodes ADD COLUMN fts_language text NOT NULL DEFAULT 'generic'; +ALTER TABLE items ADD COLUMN data_fts_cfg text NOT NULL DEFAULT 'simple'; +ALTER TABLE items ADD COLUMN data_fts tsvector; +CREATE INDEX items_data_fts ON items USING GIN (data_fts); + +CREATE OR REPLACE FUNCTION update_data_fts_cfg() RETURNS TRIGGER AS +$$ +BEGIN + UPDATE items SET data_fts_cfg=replace(new.fts_language, 'generic', 'simple') + WHERE items.node_id=new.node_id + AND NOT EXISTS(SELECT FROM item_languages AS lang WHERE lang.item_id=items.item_id); + RETURN new; +END; +$$ +language plpgsql; + +CREATE TRIGGER nodes_fts_language_update + AFTER UPDATE OF fts_language ON nodes + FOR EACH ROW + EXECUTE PROCEDURE update_data_fts_cfg(); + +CREATE FUNCTION update_data_fts() RETURNS TRIGGER AS +$$ +BEGIN + new.data_fts=to_tsvector(new.data_fts_cfg::regconfig, new.data::text); + RETURN new; +END +$$ +language plpgsql; + +CREATE TRIGGER items_fts_tsvector_update + BEFORE INSERT OR UPDATE OF data_fts_cfg,data ON items + FOR EACH ROW + EXECUTE PROCEDURE update_data_fts(); + +/* We do the update to trigger the data_fts generation */ +UPDATE items SET data_fts_cfg='simple'; + +/* we update nodes with schema to prepare for XEP-0346 implementation */ + +INSERT INTO nodes(node, pep, persist_items, publish_model, max_items) + SELECT 'fdp/template/'||s.node, s.pep, true, s.publish_model, 1 + FROM ( + SELECT node_id, node, pep, publish_model, schema + FROM nodes + WHERE schema IS NOT NULL + ) AS s; + +INSERT INTO affiliations(entity_id, node_id, affiliation) + SELECT aff.entity_id, tpl.node_id, 'owner' + FROM ( + SELECT node_id, node, pep, publish_model, schema + FROM nodes + WHERE schema IS NOT NULL AND pep IS NOT NULL + ) AS s + LEFT JOIN nodes AS tpl ON tpl.node='fdp/template/'||s.node AND tpl.pep=s.pep + LEFT JOIN affiliations AS aff ON aff.node_id=s.node_id AND aff.affiliation='owner'; + +/* we need to do a similar request for non PEP nodes */ +INSERT INTO affiliations(entity_id, node_id, affiliation) + SELECT aff.entity_id, tpl.node_id, 'owner' + FROM ( + SELECT node_id, node, pep, publish_model, schema + FROM nodes + WHERE schema IS NOT NULL AND pep IS NULL + ) AS s + LEFT JOIN nodes AS tpl ON tpl.node='fdp/template/'||s.node AND tpl.pep IS NULL + LEFT JOIN affiliations AS aff ON aff.node_id=s.node_id AND aff.affiliation='owner'; + +INSERT INTO items(node_id, item, publisher, data) + SELECT + tpl.node_id, + 'current', + e.jid||'/generated', + xmlelement(name item, xmlattributes('current' as id, e.jid||'/generated' as publisher), s.schema) + FROM ( + SELECT node_id, node, pep, publish_model, schema + FROM nodes + WHERE schema IS NOT NULL AND pep IS NOT NULL + ) AS s + LEFT JOIN nodes AS tpl ON tpl.node='fdp/template/'||s.node AND tpl.pep=s.pep + LEFT JOIN affiliations AS aff ON aff.node_id = tpl.node_id AND aff.affiliation='owner' + LEFT JOIN entities AS e ON e.entity_id = aff.entity_id; + +/* once again for non PEP nodes */ +INSERT INTO items(node_id, item, publisher, data) + SELECT + tpl.node_id, + 'current', + e.jid||'/generated', + xmlelement(name item, xmlattributes('current' as id, e.jid||'/generated' as publisher), s.schema) + FROM ( + SELECT node_id, node, pep, publish_model, schema + FROM nodes + WHERE schema IS NOT NULL AND pep IS NULL + ) AS s + LEFT JOIN nodes AS tpl ON tpl.node='fdp/template/'||s.node AND tpl.pep IS NULL + LEFT JOIN affiliations AS aff ON aff.node_id = tpl.node_id AND aff.affiliation='owner' + LEFT JOIN entities AS e ON e.entity_id = aff.entity_id; + +UPDATE nodes SET node='fdp/submitted/'||node WHERE schema IS NOT NULL; + +UPDATE metadata SET value='7' WHERE key='version';