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  Baidu is in a deadly crisis

In past few days, there was some news about Baidu(China's Google) which put this search engine giant in China in a devastating position. The news is about that the owners of a Tieba(Similar to Google Group) were replaced by a sponsored organization without notifying the original owners. This irritated the original owners of the Tieba and also the public. People are complaining that Baidu is doing something ridiculous and evil. The name of the Tieba group which was sold by Ba...

   BAIDU,NEWS,CHINA     2016-01-13 07:56:17

  Why (offset, limit) is slow in database select?

Starting from a problem Five years ago when I was working at Tencent, I found that MySQL request speed was very slow in the pagination scenario. With only 100,000 data, a select query on a single machine took about 2-3 seconds. I asked my mentor why, and he asked in return, "In an indexing scenario, what is the time complexity to get the nth largest number in MySQL?" The pursuit of the answer Confirming the scenario Assuming there is an index on the "status" column, a query like "select * from t...

   SLOW,LIMIT,OFFSET,MYSQL     2023-03-12 05:21:02

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