2009/3/31 Marcin Krol <mrkafk@xxxxxxxxx>:
> Hello everyone,
>
> I'm having this completely weird problem that ORDER BY doesn't seem to work
> correctly in PG 8.1 as bundled in RedHat 5.
>
> When I issue:
>
> SELECT * FROM virtualization;
>
> I get all the fields:
>
> reservations=# SELECT * FROM virtualization;
> id | Virtualization | color
> ----+-----------------+---------
> 1 | BOX | #FAFAFA
> 2 | LPAR | #999999
> 3 | BOX ZONE HOST | #FAFAFA
> 4 | NPAR | #9966CC
> 5 | VPAR | #9966CC
>
> But when I try to order by column Virtualization:
>
> reservations=# SELECT * FROM virtualization ORDER BY Virtualization;
>
> ERROR: could not identify an ordering operator for type virtualization
> HINT: Use an explicit ordering operator or modify the query.
>
>
> The 'virtualization' table is just a normal table with VARCHAR column of
> Virtualization:
>
> reservations=# \d virtualization
> Table "public.virtualization"
> Column | Type | Modifiers
> ----------------+-------------------+-------------------------------------------------------------
> id | integer | not null default
> nextval('virtualization_id_seq'::regclass)
> Virtualization | character varying |
> color | character varying |
> Indexes:
> "virtualization_pkey" PRIMARY KEY, btree (id)
>
>
> When I try to specify table.column I get this:
>
> reservations=# SELECT * FROM virtualization ORDER BY
> virtualization.Virtualization;
> ERROR: column virtualization.virtualization does not exist
>
>
>
> What's going on?
>
Try:
SELECT * FROM virtualization ORDER BY virtualization."Virtualization";
>From the manual:
"Quoting an identifier also makes it case-sensitive, whereas unquoted
names are always folded to lower case"
http://www.postgresql.org/docs/current/interactive/sql-syntax-lexical.html#SQL-SYNTAX-IDENTIFIERS
Osvaldo
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