Re: Column does not exists?

On Thu, 26 Mar 2015 14:12:36 -0300
"Leonardo M. Ramé" <l.rame@griensu.com> wrote:

> Ok, I have this table:
>
> CREATE TABLE sessions
> (
>    "SESSIONID" integer NOT NULL,
>    "SESSIONTIMESTAMP" character varying(45) NOT NULL,
>    "SESSIONDATA" character varying(200) DEFAULT NULL::character varying,
>    CONSTRAINT sessions_pkey PRIMARY KEY ("SESSIONID")
> )
>
> Now, when I do:
>
> DELETE From sessions WHERE SESSIONTIMESTAMP < '2010-01-01 10:02:02'
>
> I get:
>
> ERROR:  column "sessiontimestamp" does not exist
> LINE 1: DELETE From sessions WHERE SESSIONTIMESTAMP < '2010-01-01 10...
>                                     ^
> ********** Error **********
>
> ERROR: column "sessiontimestamp" does not exist
> SQL state: 42703
> Character: 28
>
> But if I do:
>
> DELETE From sessions WHERE "SESSIONTIMESTAMP" < '2010-01-01 10:02:02'
>
> It DOES work.
>
> Why the db doesn't recognize the name of the table without quotes?.

See:
http://www.postgresql.org/docs/9.4/static/sql-syntax-lexical.html#SQL-SYNTAX-IDENTIFIERS

--
Bill Moran