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Code Issues Releases Activity

Server: Optimise delta sub-query (#13633)

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This commit is contained in:
Laurent Cozic
2025-11-06 20:27:47 +01:00
committed by GitHub
parent 996a0894ae
commit aaeb5db3c7
1 changed files with 8 additions and 2 deletions
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10
packages/server/src/models/ChangeModel.ts
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@@ -167,12 +167,18 @@ export default class ChangeModel extends BaseModel<Change> {
// 2025-11-06: Remove the "+ 0" because now it appears to make query slower by preventing
// the query planner from using the index. Using Postgres 16.8
const changesFieldsSql = fields
.map(f => `"changes"."${f}" AS "${f}"`)
.join(', ');
const subQuery2 = `
SELECT ${fieldsSql}
SELECT ${changesFieldsSql}
FROM "changes"
JOIN "user_items"
ON user_items.item_id = changes.item_id
WHERE counter > ?
AND type = ?
AND item_id IN (SELECT item_id FROM user_items WHERE user_id = ?)
AND user_items.user_id = ?
ORDER BY "counter" ASC
${doCountQuery ? '' : 'LIMIT ?'}
`;