On 15 Oct 2014, at 12:54pm, Prakash Premkumar <prakash.p...@gmail.com> wrote:

> I'm trying to understand the sqlite select query optimizer. It works by
> assigning costs to each relation in FROM clause.

That is only a little bit of how it works.  Have you read these ?

<https://www.sqlite.org/optoverview.html>
<https://www.sqlite.org/queryplanner-ng.html>

Simon.
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