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No.2011/4/30, Jon Smark <jon.smark@yahoo.com>:Hi,Does Postgresql perform short-circuit boolean evaluation both in SQLand 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--Sent via pgsql-general mailing list (pgsql-general@postgresql.org)To make changes to your subscription:http://www.postgresql.org/mailpref/pgsql-general-- ------------pasman-- Sent via pgsql-general mailing list (pgsql-general@postgresql.org)To make changes to your subscription:http://www.postgresql.org/mailpref/pgsql-general
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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