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Re: way to custom sort column by fixed strings, then by field's content

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On 02/03/2014 01:00 PM, Susan Cassidy wrote:

The query is currently:
select sti.description, sc.description from scene_thing_instances sti
    left outer join scenes sc on sti.scene_id = sc.scene_id
   order by sti.description, CASE
             when (sti.description = 'absolute root'::text) then 1
             when (sti.description ilike 'root%') then  2
             else 3
            END;


The results I want are:

     description    | description
-------------------+-------------

  absolute root     |
  root 3            | Scene 1
  root 4            | Scene 2
  root 6            | Scene 3
18 cm long wrench | Scene 1
blue screwdriver  | Scene 1
red toolbox       | Scene 1
small wrench      | Scene 1
  tire              | Scene 2
(9 rows)


So Robs last solution:

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)


--
Adrian Klaver
adrian.klaver@xxxxxxxxx


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