Re: Column "..." does not exist (view + union)

Stefan Weiss <krewecherl(at)gmail(dot)com> wrote:

>
> - running this query -
>
> SELECT name
> FROM dossier_contact_v
> WHERE dossier_id = 56993
> AND ctype = 234
> UNION
> SELECT name
> FROM dossier_contact_v
> WHERE dossier_id = -1
> AND ctype = -1
> ORDER BY ctype;
>
> - fails with the following error message:
>
> ERROR: column "ctype" does not exist
> LINE 10: ORDER BY ctype;

The reult table doesn't contain a column "ctype", it contains only
"name". Rewrite your query to something like:

select name from (select name, ctype from ... union select name, ctype from ...)
foo order by ctype

Andreas
--
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