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help with query: advanced ORDER BY...

From: <me(at)alternize(dot)com>
To: <pgsql-novice(at)postgresql(dot)org>
Subject: help with query: advanced ORDER BY...
Date: 2006-01-14 16:47:41
Message-ID: 00ac01c6192a$3c487460$6402a8c0@iwing (view raw, whole thread or download thread mbox)
Lists: pgsql-novice
hi list

here's what i would like to do:

field0: id
field1: boolean
field2: numeric
field3: varchar

when selecting records from this table, i would like to have different sort 
orders depending if field1 is true or false: all records with field1 = true 
should be sorted with field2 first then field3, all records having field2 = 
false sorted by field3 first then field2.


field0  |  field1 |  field 2 |  field3
1            t           2           b
2            f           1           z
3            t           1           a
4            f            4           a

desired output after sorting
4            f            4           a
2            f           1           z
3            t           1           a
1            t           2           b

is this possible in a single query?

(i hope my explanations make sense ;-))

- thomas 


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Subject: Re: help with query: advanced ORDER BY...
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