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Removed PG stop word dictionary. Filtering and ordering search results in GraphQL query.

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DebaucheryLibrarian
2021-02-26 01:52:28 +01:00
parent 3310236767
commit bb9fbc77a9
4 changed files with 10 additions and 185 deletions
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26
migrations/20190325001339_releases.js
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@@ -981,20 +981,8 @@ exports.up = knex => Promise.resolve()
.then(() => { // eslint-disable-line arrow-body-style
// allow vim fold
return knex.raw(`
CREATE TEXT SEARCH DICTIONARY traxxx_dict (
TEMPLATE = pg_catalog.simple,
stopwords = traxxx
);
CREATE TEXT SEARCH CONFIGURATION traxxx (
COPY = english
);
ALTER TABLE releases_search
ADD COLUMN document tsvector;
ALTER TEXT SEARCH CONFIGURATION traxxx
ALTER MAPPING FOR word, numword, hword, numhword, hword_part, hword_numpart, asciiword, asciihword, hword_asciipart WITH traxxx_dict, simple, english_stem;
`);
})
// INDEXES
@@ -1012,20 +1000,12 @@ exports.up = knex => Promise.resolve()
.then(() => { // eslint-disable-line arrow-body-style
// allow vim fold
return knex.raw(`
CREATE FUNCTION search_releases_legacy(query text) RETURNS SETOF releases AS $$
SELECT * FROM releases WHERE releases.id IN (
SELECT release_id FROM releases_search AS search
WHERE search.document @@ plainto_tsquery('traxxx', regexp_replace(query, '\\.|-|(XXX\\.[\\d+|hd|sd].*$)', ' ', 'ig'))
ORDER BY ts_rank(search.document, plainto_tsquery('traxxx', regexp_replace(query, '\\.|-|(XXX\\.[\\d+|hd|sd].*$)', ' ', 'ig'))) DESC
);
$$ LANGUAGE SQL STABLE;
/* We need both the release entries and their search ranking, and PostGraphile does not seem to allow virtual foreign keys on function results.
* Using a view as a proxy for the search results allows us to get both a reference to the releases table, and the ranking */
CREATE VIEW releases_search_results AS
SELECT NULL::integer as id, NULL::real as rank;
CREATE FUNCTION search_releases(query text, minimum_rank numeric DEFAULT 0) RETURNS SETOF releases_search_results AS $$
CREATE FUNCTION search_releases(query text) RETURNS SETOF releases_search_results AS $$
SELECT releases.id, ranks.rank FROM (
SELECT
releases_search.release_id,
@@ -1033,7 +1013,7 @@ exports.up = knex => Promise.resolve()
FROM releases_search
) ranks
LEFT JOIN releases ON releases.id = ranks.release_id
WHERE ranks.rank > minimum_rank
WHERE ranks.rank > 0
ORDER BY ranks.rank DESC;
$$ LANGUAGE SQL STABLE;
@@ -1199,8 +1179,8 @@ exports.up = knex => Promise.resolve()
COMMENT ON FUNCTION actors_channels IS E'@sortable';
COMMENT ON FUNCTION actors_actors IS E'@sortable';
COMMENT ON FUNCTION actors_scenes IS E'@sortable';
COMMENT ON FUNCTION tags_scenes IS E'@sortable';
COMMENT ON FUNCTION search_releases IS E'@sortable';
COMMENT ON VIEW releases_search_results is E'@foreignKey (id) REFERENCES releases (id)';
`);