On 02/03/2014 01:01 PM, Susan Cassidy wrote:
description | description
-------------------+-------------
18 cm long wrench | Scene 1
absolute root |
blue screwdriver | Scene 1
red toolbox | Scene 1
root 3 | Scene 1
root 4 | Scene 2
root 6 | Scene 3
small wrench | Scene 1
tire | Scene 2
On Mon, Feb 3, 2014 at 11:14 AM, Adrian Klaver
<adrian.kla...@gmail.com <mailto:adrian.kla...@gmail.com>> wrote:
On 02/03/2014 10:53 AM, Susan Cassidy wrote:
I have a column that contains items like
'absolute root'
'root 3'
'root 4'
'root 5'
'scene 1'
'scene 2'
'scene 3'
and I would like them to sort in that order.
I tried:
select sti.description, sc.description from
scene_thing_instances sti
join scenes sc on sti.scene_id = sc.scene_id
order by CASE sc.description
when (sc.description = 'absolute root'::text) then 1
when (sc.description ilike 'root%') then 2
else 3
END;
I was starting with this, and was going to add perhaps another
case
statement.
But it gives me:
ERROR: operator does not exist: text = boolean
LINE 3: when (sc.description = 'absolute
root'::text) th...
^
HINT: No operator matches the given name and argument
type(s). You
might need to add explicit type casts.
I don't understand this because description is a text column, not
boolean, and certainly 'absolute root'::text is a text string.
This is 9.2.
Ideas, anyone?
select sti.description, sc.description from scene_thing_instances
sti join scenes sc on sti.scene_id = sc.scene_id
order by sc.description, CASE
when (sc.description = 'absolute root'::text) then 1
when (sc.description ilike 'root%') then 2
else 3
END;
Thanks,
Susan
--
Adrian Klaver
adrian.kla...@gmail.com <mailto:adrian.kla...@gmail.com>
Sorry this is what I meant to post
select s.s1, s.s2, ( CASE
when (s.s1 = 'absolute root'::text) then 1
when (s.s1 ~* '^root*') then 2
else 3
END) as v
from scripts as s
order by v,s1
toys-# ;
s1 | s2 | v
-------------------+---------+---
absolute root | | 1
root 3 | Scene 1 | 2
root 4 | Scene 2 | 2
root 6 | Scene 3 | 2
18 cm long wrench | Scene 1 | 3
blue screwdriver | Scene 1 | 3
red toolbox | Scene 1 | 3
small wrench | Scene 1 | 3
tire | Scene 2 | 3
(9 rows)
