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New posts in query-optimization

Unique filtered index and indexed view are ignored by optimizer

Laravel Conditional Statement: is when() efficient?

optimising a mysql query with 2 joins and group by clauses

How can I optimize multiple nested SELECTs in SQLite (w/Python)?

Speed up this MySQL Statement

mysql query-optimization

phpMyAdmin, is there a something you can add to sql to turn off caching for that query?

in postgres, is it possible to optimize a VIEW of UNIONs

MySQL query using filesort and temporary

mysql query-optimization

What will happen if I kill a huge MySQL InnoDb DELETE Query?

Does a SQL UNION with a LIMIT optimize away uneeded queries?

Linq-to-SQL and sp_reset_connection

Django: Why is Foo.objects.extra(...) So Much Faster Than Foo.objects.raw?

MySQL date diff iteration query - streamline query or optimize data structure

Which mysql method is fast?

mysql query-optimization

Union of a query with itself generates different plan

Hamming Distance optimization for MySQL or PostgreSQL?

Is it a slow query? Can it be improved?

How to make JOIN query use index?

How to optimise MySQL queries based on EXPLAIN plan

mysql query-optimization

Can I optimize a SELECT DISTINCT x FROM hugeTable query by creating an index on column x?