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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
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