| From: | Jeff Davis <pgsql(at)j-davis(dot)com> |
|---|---|
| To: | Kynn Jones <kynnjo(at)gmail(dot)com> |
| Cc: | pgsql-general(at)postgresql(dot)org |
| Subject: | Re: Queries w/ "computed" table names? (eval in Pg?) |
| Date: | 2008-02-22 23:50:44 |
| Message-ID: | 1203724244.7878.44.camel@dogma.ljc.laika.com |
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| Thread: | |
| Lists: | pgsql-general |
On Fri, 2008-02-22 at 18:40 -0500, Kynn Jones wrote:
> Hi. Suppose I have a database that contains a "meta table" that holds
> the names of other the tables in the database, keyed by human-readable
> but longish strings. I would like to write queries that first
> "compute" the names of some tables (i.e. by looking them up in "meta
> table"), and after that they execute subqueries using these computed
> table names. The following invalid SQL illustrates the kind of
You can create a PL/pgSQL function and use "EXECUTE".
Depending on how you want to use it, you may need to make it a set-
returning function (a.k.a. table function).
Regards,
Jeff Davis
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