I use EXPLAIN to make sure that my virtual tables' xFilter methods get called 
with the proper parameters.

I guess I'm a geek ;)

-----Ursprüngliche Nachricht-----
Von: Simon Slavin [mailto:slav...@bigfraud.org]
Gesendet: Freitag, 15. November 2013 18:08
An: General Discussion of SQLite Database
Betreff: Re: [sqlite] EXPLAIN QUERY PLAN


On 15 Nov 2013, at 4:29pm, jose isaias cabrera <cabr...@wrc.xerox.com> wrote:

> Is there any place that explain each of this entries?

<http://www.sqlite.org/opcode.html>

However, don't feel you should understand them.  They're for geeks only.

The output from EXPLAIN QUERY PLAN can be very useful for people trying to 
optimize their code.  The output from EXPLAIN is really just for developers and 
geeks trying to understand SQLite itself.  If you need the output of EXPLAIN to 
explain why your code doesn't work, you have serious problems.

So yes, use EXPLAIN QUERY PLAN if you think it helps.  But use EXPLAIN only if 
you have spare time.

Simon.
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