Hi list,
Can anyone advise me on creating an aggregate that would take additional
parameter as a condition ? For example, say I have a table like this
id;value
1;45
2;13
3;0
4;90
I'd like to do something like this
SELECT min_some_cond_aggregate(value,0) FROM table
to get the minimal value
Hello
use a CASE statement
http://www.postgresql.org/docs/7.4/static/functions-conditional.html
Regards
Pavel Stehule
2010/12/8 Marcin Krawczyk jankes...@gmail.com:
Hi list,
Can anyone advise me on creating an aggregate that would take additional
parameter as a condition ? For example, say
Yeah I know but I'm having problems creating sfunc fuction for the
aggregate.
regards
mk
2010/12/8 Pavel Stehule pavel.steh...@gmail.com
Hello
use a CASE statement
http://www.postgresql.org/docs/7.4/static/functions-conditional.html
Regards
Pavel Stehule
2010/12/8 Marcin Krawczyk
: [SQL] conditional aggregates
Yeah I know but I'm having problems creating sfunc fuction for the
aggregate.
regards
mk
2010/12/8 Pavel Stehule pavel.steh...@gmail.com
Hello
use a CASE statement
http://www.postgresql.org/docs/7.4/static/functions-conditional.html
Regards
Pavel Stehule
:* Mittwoch, 8. Dezember 2010 14:20
*To:* Pavel Stehule
*Cc:* pgsql-sql@postgresql.org
*Subject:* Re: [SQL] conditional aggregates
Yeah I know but I'm having problems creating sfunc fuction for the
aggregate.
regards
mk
2010/12/8 Pavel Stehule pavel.steh...@gmail.com
Hello
use a CASE