On 23 Nov 2018, at 3:44pm, Wout Mertens <wout.mert...@gmail.com> wrote:

> CREATE TABLE log(type TEXT, amount INTEGER)
> SELECT type, SUM(amount), COUNT(*) FROM log GROUP BY type
> 
> What would be good approaches to make the query fast?

Create an index for "log(type, amount)".

Simon.
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