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1af98b690b
* chore: CREATE INDEX CONCURRENTLY for "userId" "id" composite note index
* chore: remove { concurrent: true } and comment why
* update comment
* feat: add MISSKEY_MIGRATION_CREATE_INDEX_CONCURRENTLY option
* fix: spdx license header
* alter comment
* chore: improve behavior when migration failure
* docs(changelog): 2025.4.1 で追加されたインデックスの再生成をノートの追加しながら行えるようになりました
* ちょっと表現を変更
---------
Co-authored-by: 饺子w (Yumechi) <35571479+eternal-flame-ad@users.noreply.github.com>
36 lines
1.7 KiB
JavaScript
36 lines
1.7 KiB
JavaScript
/*
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* SPDX-FileCopyrightText: syuilo and misskey-project
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* SPDX-License-Identifier: AGPL-3.0-only
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*/
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import { isConcurrentIndexMigrationEnabled } from "./js/migration-config.js";
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export class CompositeNoteIndex1745378064470 {
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name = 'CompositeNoteIndex1745378064470';
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transaction = isConcurrentIndexMigrationEnabled() ? false : undefined;
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async up(queryRunner) {
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const concurrently = isConcurrentIndexMigrationEnabled();
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if (concurrently) {
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const hasValidIndex = await queryRunner.query(`SELECT indisvalid FROM pg_index INNER JOIN pg_class ON pg_index.indexrelid = pg_class.oid WHERE pg_class.relname = 'IDX_724b311e6f883751f261ebe378'`);
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if (!hasValidIndex || hasValidIndex[0].indisvalid !== true) {
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await queryRunner.query(`DROP INDEX IF EXISTS "IDX_724b311e6f883751f261ebe378"`);
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await queryRunner.query(`CREATE INDEX CONCURRENTLY "IDX_724b311e6f883751f261ebe378" ON "note" ("userId", "id" DESC)`);
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}
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} else {
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await queryRunner.query(`CREATE INDEX IF NOT EXISTS "IDX_724b311e6f883751f261ebe378" ON "note" ("userId", "id" DESC)`);
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}
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await queryRunner.query(`DROP INDEX IF EXISTS "IDX_5b87d9d19127bd5d92026017a7"`);
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// Flush all cached Linear Scan Plans and redo statistics for composite index
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// this is important for Postgres to learn that even in highly complex queries, using this index first can reduce the result set significantly
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await queryRunner.query(`ANALYZE "user", "note"`);
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}
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async down(queryRunner) {
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const mayConcurrently = isConcurrentIndexMigrationEnabled() ? 'CONCURRENTLY' : '';
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await queryRunner.query(`DROP INDEX IF EXISTS "IDX_724b311e6f883751f261ebe378"`);
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await queryRunner.query(`CREATE INDEX ${mayConcurrently} "IDX_5b87d9d19127bd5d92026017a7" ON "note" ("userId")`);
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}
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}
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