When using the FE/BE, how do I retrieve the table name for a given
column?  Say I had the following SQL:
 
Select c.id, c.name, d.phone from Members c, Addresses d where c.id <
200
 
>From the docs of the FE/BE, I would see that the fields are named id,
name, phone but how do I find out the source tables that each field came
from?  I need to know this to discover nullability of fields,
uniqueness, etc.
 
Thanks
Reggie














When using the FE/BE, how do I retrieve the table name for a
given column?  Say I had the following
SQL:
 
Select c.id, c.name,
d.phone from Members c, Addresses d where c.id < 200
 
From the docs of the FE/BE, I would see that the fields are
named id, name, phone but how do I find out the source tables that each field
came from?  I need to know this to
discover nullability of fields, uniqueness, etc.
 
Thanks
Reggie
Mon, 27 Jan 2003 08:30:45 -0600
"Reggie Burnett" <rykr@bellsouth.net>
how do I get the table name from a query?
Reggie,

At the moment, you can't, but please comment on my request for qualified
column names. This is the same issue and there are many collateral
issues which Tom has brought up.

Dave
On Mon, 2003-01-27 at 09:30, Reggie Burnett wrote:
> When using the FE/BE, how do I retrieve the table name for a given
> column?  Say I had the following SQL:
> 
>  
> 
> Select c.id, c.name, d.phone from Members c, Addresses d where c.id <
> 200
> 
>  
> 
> From the docs of the FE/BE, I would see that the fields are named id,
> name, phone but how do I find out the source tables that each field
> came from?  I need to know this to discover nullability of fields,
> uniqueness, etc.
> 
>  
> 
> Thanks
> 
> Reggie
-- 
Dave Cramer <dave@fastcrypt.com>
Cramer Consulting


27 Jan 2003 09:41:43 -0500
Dave Cramer <dave@fastcrypt.com>
Re: how do I get the table name from a query?
So unless I parse the SQL statement myself, I can't tell anything about
the source table?  To find out uniqueness, indexes, etc for fields in a
source table, I need the table name and have to execute queries against
pg_attribute and pg_indexes.  But since the FE/BE doesn't return to me
the source table name, I would have to parse this myself?

Reggie

> -----Original Message-----
> From: pgsql-hackers-owner@postgresql.org [mailto:pgsql-hackers-
> owner@postgresql.org] On Behalf Of Dave Cramer
> Sent: Monday, January 27, 2003 8:42 AM
> To: Reggie Burnett
> Cc: 'Hackers'
> Subject: Re: [HACKERS] how do I get the table name from a query?
> 
> Reggie,
> 
> At the moment, you can't, but please comment on my request for
qualified
> column names. This is the same issue and there are many collateral
> issues which Tom has brought up.
> 
> Dave
> On Mon, 2003-01-27 at 09:30, Reggie Burnett wrote:
> > When using the FE/BE, how do I retrieve the table name for a given
> > column?  Say I had the following SQL:
> >
> >
> >
> > Select c.id, c.name, d.phone from Members c, Addresses d where c.id
<
> > 200
> >
> >
> >
> > From the docs of the FE/BE, I would see that the fields are named
id,
> > name, phone but how do I find out the source tables that each field
> > came from?  I need to know this to discover nullability of fields,
> > uniqueness, etc.
> >
> >
> >
> > Thanks
> >
> > Reggie
> --
> Dave Cramer <dave@fastcrypt.com>
> Cramer Consulting
> 
> 
> ---------------------------(end of
broadcast)---------------------------
> TIP 6: Have you searched our list archives?
> 
> http://archives.postgresql.org



Mon, 27 Jan 2003 08:59:02 -0600
"Reggie Burnett" <rykr@bellsouth.net>
Re: how do I get the table name from a query?