No. It will not be called
Or
No. Postgresql does not short-circuit boolean evaluations
?

On Apr 30, 2011, at 10:27, pasman pasmański <pasma...@gmail.com> wrote:

> No.
> 
> 2011/4/30, Jon Smark <jon.sm...@yahoo.com>:
>> Hi,
>> 
>> Does Postgresql perform short-circuit boolean evaluation both in SQL
>> and PL/pgSQL functions?  As an example, suppose I have a function called
>> "do_stuff" which is computationally intensive.  In the example below,
>> will it be called for rows for which the first predicate (foobar.id = $1)
>> is false?
>> 
>> SELECT count(*) FROM foobar WHERE foobar.id = $1 AND do_stuff (foobar.name);
>> 
>> Thanks!
>> Jon
>> 
>> 
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> 
> 
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> ------------
> pasman
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