performance - Postgresql extremely slow count (with index, simple query) - Database Administrators Stack Exchangehttps://dba.stackexchange.com/questions/245990/postgresql-extremely-slow-count-with-index-simple-queryFast counting in PostgreSQL and MySQL | New RelicLearn techniques for fast counting PostgreSQL and MySQL databases, including counting ahead of time and estimating counts.https://newrelic.com/blog/how-to-relic/fast-counting-in-postgresql-and-mysql
Counting faster with PostgresExplore how count and distinct queries work behind the scenes, how to make them run faster, and alternative approaches to the problem of speed.https://arctype.com/blog/postgres-count/文章来源:https://uudwc.com/A/WvWmN
Use Subqueries to Count Distinct 50X Faster | SisenseCount distinct is the bane of SQL analysts. Next time count distinct is taking all day, try a few subqueries to lighten the load.https://www.sisense.com/blog/use-subqueries-to-count-distinct-50x-faster/ 文章来源地址https://uudwc.com/A/WvWmN