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fix bubble timeline query performance

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This commit is contained in:
Hazelnoot 2025-06-03 15:15:04 -04:00
parent a392865203
commit 38d4ac91ef
1 changed files with 12 additions and 10 deletions
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22
packages/backend/src/server/api/endpoints/notes/bubble-timeline.ts
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@ -4,7 +4,6 @@
*/
import { Inject, Injectable } from '@nestjs/common';
import { Brackets } from 'typeorm';
import type { NotesRepository } from '@/models/_.js';
import { Endpoint } from '@/server/api/endpoint-base.js';
import { QueryService } from '@/core/QueryService.js';
@ -12,7 +11,6 @@ import { NoteEntityService } from '@/core/entities/NoteEntityService.js';
import ActiveUsersChart from '@/core/chart/charts/active-users.js';
import { DI } from '@/di-symbols.js';
import { RoleService } from '@/core/RoleService.js';
import { CacheService } from '@/core/CacheService.js';
import { ApiError } from '../../error.js';
export const meta = {
@ -80,11 +78,21 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
ps.sinceId, ps.untilId, ps.sinceDate, ps.untilDate)
.andWhere('note.visibility = \'public\'')
.andWhere('note.channelId IS NULL')
.andWhere('note.userHost IS NOT NULL')
.innerJoinAndSelect('note.user', 'user')
.leftJoinAndSelect('note.reply', 'reply')
.leftJoinAndSelect('note.renote', 'renote')
.leftJoinAndSelect('reply.user', 'replyUser')
.leftJoinAndSelect('renote.user', 'renoteUser');
.leftJoinAndSelect('reply.user', 'replyUser', 'replyUser.id = note.replyUserId')
.leftJoinAndSelect('renote.user', 'renoteUser', 'renoteUser.id = note.renoteUserId');
// This subquery mess teaches postgres how to use the right indexes.
// Using WHERE or ON conditions causes a fallback to full sequence scan, which times out.
// Important: don't use a query builder here or TypeORM will get confused and stop quoting column names! (known, unfixed bug apparently)
query
.leftJoin('(select "host" from "instance" where "isBubbled" = true)', 'bubbleInstance', '"bubbleInstance"."host" = "note"."userHost"')
.andWhere('"bubbleInstance" IS NOT NULL');
this.queryService
.leftJoinInstance(query, 'note.userInstance', 'userInstance', '"userInstance"."host" = "bubbleInstance"."host"');
this.queryService.generateBlockedHostQueryForNote(query);
this.queryService.generateSilencedUserQueryForNotes(query, me);
@ -104,12 +112,6 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
} else if (me) {
this.queryService.generateMutedUserRenotesQueryForNotes(query, me);
}
if (me) {
this.queryService.generateMatchingHostQueryForNote(query, { isBubbled: true });
} else {
this.queryService.generateMatchingHostQueryForNote(query, { isBubbled: true, isSilenced: false });
}
//#endregion
const timeline = await query.limit(ps.limit).getMany();