# I am the Watcher. I am your guide through this vast new twtiverse.
# 
# Usage:
#     https://watcher.sour.is/api/plain/users              View list of users and latest twt date.
#     https://watcher.sour.is/api/plain/twt                View all twts.
#     https://watcher.sour.is/api/plain/mentions?uri=:uri  View all mentions for uri.
#     https://watcher.sour.is/api/plain/conv/:hash         View all twts for a conversation subject.
# 
# Options:
#     uri     Filter to show a specific users twts.
#     offset  Start index for quey.
#     limit   Count of items to return (going back in time).
# 
# twt range = 1 1
# self = https://watcher.sour.is/conv/x3skynq
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全面透徹，深刻理解 MySQL 索引**
hello，大家好，我是張張，「架構精進之路」公號作者。對於 MySQL 索引，相信每位後端同學日常工作中經常會用到，但是對其索引原理，卻可能未曾真正深入瞭解。B- 樹和 B+ 樹是 MySQL 索引使用的數據結構，對於索引優化和原理理解都非常重要，下面就揭開 B- 樹和 B+ 樹的神祕面紗，讓大家在面試的時候碰到這個知識點一往無前，不再成爲你前進的羈絆！本文主要內容：MySQL 查詢耗時分析，抓 ⌘ Read more