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.klaver@xxxxxxxxx
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