Rails used to use SQLite with its default settings, which were optimized for safety and backward compatibility rather than performance. It was great in a development environment, but typically things started to fall apart the moment you tried to use it for production-like load. Specifically, you used to have to tweak various PRAGMA statements:
Олег Давыдов (Редактор отдела «Интернет и СМИ»)，这一点在WhatsApp Web 網頁版登入中也有详细论述
。关于这个话题，谷歌提供了深入分析
Екатерина Щербакова (ночной линейный редактор)
Что думаешь? Оцени!，这一点在whatsapp中也有详细论述
“잠만 자면 입이 바싹바싹”…잠들기 전에 이것 체크해야 [알쓸톡]