| From: | Michael Fuhr <mike(at)fuhr(dot)org> |
|---|---|
| To: | Scott Cain <cain(at)cshl(dot)edu> |
| Cc: | pgsql-interfaces(at)postgresql(dot)org |
| Subject: | Re: finding indexed functions from pg_index |
| Date: | 2005-09-20 22:03:23 |
| Message-ID: | 20050920220323.GA66861@winnie.fuhr.org |
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| Lists: | pgsql-interfaces |
On Tue, Sep 20, 2005 at 02:15:36PM -0400, Scott Cain wrote:
> What I haven't figure out is this: how does one determine what the
> declarative statement is for a functional index that is obtained from
> pg_index.indexprs? What I would like to be able to do is be able to
> recreate the SQL that defined that index.
See the pg_get_indexdef() function.
http://www.postgresql.org/docs/8.0/interactive/functions-info.html
When trying to figure out how to query the system catalogs, it can
be useful to study the queries that psql runs for \d commands. Run
"psql -E" or execute "\set ECHO_HIDDEN" to see those queries.
--
Michael Fuhr
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