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ソートにIDを使わない #1405

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syuilo opened this issue Apr 5, 2018 · 3 comments · Fixed by #4572
Closed

ソートにIDを使わない #1405

syuilo opened this issue Apr 5, 2018 · 3 comments · Fixed by #4572
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@syuilo
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syuilo commented Apr 5, 2018 •
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代わりにcreatedAtを使う
ActivityPubのようにデータベースに挿入した順序が必ずしも投稿を作成した順序とは一致しない場合もあるため

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@akihikodaki
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IDとcreatedAtを使う場面を分ける必要がある。例えば、タイムラインの構築はIDでやったほうが良い。そうすると、ストリーミングで受け取った順序とタイムラインでの表示順序を一致させることができる。
ただし、MongoDBのIDはかならずしも単調ではない (データベースに保存した時系列と一致しない) ことに注意する。クラスタ構成ではクラスタによってIDが前後する。そのため、順序を保証できるのは秒精度でしかない。

@syuilo
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syuilo commented Apr 5, 2018

ふぅ～～～～～～む

@syuilo syuilo added the 💬Discussion Being discussed or needs discussion label Apr 5, 2018
@tosuke
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tosuke commented Jan 31, 2019

https://github.com/syuilo/misskey/issues/2497

@syuilo syuilo mentioned this issue Mar 31, 2019
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nokotaro pushed a commit to nokotaro/misskey that referenced this issue Jul 5, 2020
@dependabot-preview
Bump vue-json-pretty from 1.6.3 to 1.6.4 (misskey-dev#1405)
2274e26 
Bumps [vue-json-pretty](https://github.com/leezng/vue-json-pretty) from 1.6.3 to 1.6.4.
- [Release notes](https://github.com/leezng/vue-json-pretty/releases)
- [Commits](leezng/vue-json-pretty@v1.6.3...v1.6.4)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>
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Use PostgreSQL instead of MongoDB misskey-dev/misskey
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@syuilo @tosuke @akihikodaki