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Refactored PG search function to allow superflous words in search query.

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DebaucheryLibrarian
2021-02-25 02:52:45 +01:00
parent 3ad1f3d1e3
commit 7818328378
8 changed files with 17 additions and 4 deletions
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14
migrations/20190325001339_releases.js
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@@ -1012,7 +1012,7 @@ exports.up = knex => Promise.resolve()
.then(() => { // eslint-disable-line arrow-body-style
// allow vim fold
return knex.raw(`
CREATE FUNCTION search_releases(query text) RETURNS SETOF releases AS $$
CREATE FUNCTION search_releases_legacy(query text) RETURNS SETOF releases AS $$
SELECT * FROM releases WHERE releases.id IN (
SELECT release_id FROM releases_search AS search
WHERE search.document @@ plainto_tsquery('traxxx', regexp_replace(query, '\\.|-|(XXX\\.[\\d+|hd|sd].*$)', ' ', 'ig'))
@@ -1020,6 +1020,18 @@ exports.up = knex => Promise.resolve()
);
$$ LANGUAGE SQL STABLE;
CREATE FUNCTION search_releases(query text, minimum_rank numeric DEFAULT 0) RETURNS SETOF releases AS $$
SELECT releases.* FROM (
SELECT
releases_search.release_id,
ts_rank(releases_search.document, to_tsquery('english', array_to_string(regexp_split_to_array(query, E'\\s+'), '|'))) AS rank
FROM releases_search
) ranks
LEFT JOIN releases ON releases.id = ranks.release_id
WHERE ranks.rank > minimum_rank
ORDER BY ranks.rank DESC;
$$ LANGUAGE SQL STABLE;
CREATE FUNCTION search_entities(search text) RETURNS SETOF entities AS $$
SELECT * FROM entities
WHERE