Tăng tốc COUNT(*) một phần trong Postgres bằng cách sử dụng LIMIT trong truy vấn con

*Find the article on our blog here:*

https://pganalyze.com/blog/5mins-postgres-limited-count

In episode 103 of “5mins of Postgres”, we look at optimizing the performance of COUNT statements when only a subset of the data needs to be counted, through use of a LIMIT in a sub-SELECT. We also discuss how this can be represented effectively in a web application.

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📑 *What we have discussed in this episode of 5mins of Postgres:*

*An Efficient Way to Check for Existence of Multiple Values in SQL - Blog post by Lukas Eder*

https://blog.jooq.org/an-efficient-way-to-check-for-existence-of-multiple-values-in-sql/