traxxx/migrations/_20220330230122_stats.js

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exports.up = async (knex) => knex.raw(`
CREATE MATERIALIZED VIEW entities_stats
AS
WITH RECURSIVE relations AS (
SELECT entities.id, entities.parent_id, count(releases.id) AS releases_count, count(releases.id) AS total_count
FROM entities
LEFT JOIN releases ON releases.entity_id = entities.id
GROUP BY entities.id
UNION ALL
SELECT entities.id AS entity_id, count(releases.id) AS releases_count, count(releases.id) + relations.total_count AS total_count
FROM entities
INNER JOIN relations ON relations.id = entities.parent_id
LEFT JOIN releases ON releases.entity_id = entities.id
GROUP BY entities.id
)
SELECT relations.id AS entity_id, relations.releases_count
FROM relations;
`);
exports.down = async (knex) => knex.raw(`
DROP MATERIALIZED VIEW entities_stats;
`);