| Lists: | pgsql-admin |
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| From: | David(dot)Jacques(at)CCRS(dot)NRCan(dot)gc(dot)ca |
|---|---|
| To: | pgsql-admin(at)postgresql(dot)org |
| Subject: | Building a list of fields ? |
| Date: | 2005-01-19 17:38:11 |
| Message-ID: | B7F9814D6850C949947CF8DEA13477810207AB89@s5-ccr-r2.ccrs.nrcan.gc.ca |
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| Lists: | pgsql-admin |
I'm trying to make a generic function InsertValues().
In order to do this (cleanly) I need to construct a field list from
the table name passed in as an argument. However I see no libpq function
to return the field names of a table. Does such a thing exist ?
I thought I was on to something by using the pg_attribute system table,
but there is no field to relate a column to its table.
| From: | Michael Fuhr <mike(at)fuhr(dot)org> |
|---|---|
| To: | David(dot)Jacques(at)CCRS(dot)NRCan(dot)gc(dot)ca |
| Cc: | pgsql-admin(at)postgresql(dot)org |
| Subject: | Re: Building a list of fields ? |
| Date: | 2005-01-19 18:20:01 |
| Message-ID: | 20050119182001.GA95507@winnie.fuhr.org |
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| Lists: | pgsql-admin |
On Wed, Jan 19, 2005 at 12:38:11PM -0500, David(dot)Jacques(at)CCRS(dot)NRCan(dot)gc(dot)ca wrote:
> I'm trying to make a generic function InsertValues().
>
> In order to do this (cleanly) I need to construct a field list from
> the table name passed in as an argument. However I see no libpq function
> to return the field names of a table. Does such a thing exist ?
I don't see a function that specifically returns a table's structure,
but you can use the functions listed under "Retrieving Query Result
Information" to inspect the results of a query against that table.
> I thought I was on to something by using the pg_attribute system table,
> but there is no field to relate a column to its table.
Yes there is -- attrelid is the table's OID. You can join attrelid
with pg_class.oid.
--
Michael Fuhr
http://www.fuhr.org/~mfuhr/