| From: | Simon Riggs <simon(at)2ndQuadrant(dot)com> |
|---|---|
| To: | Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com> |
| Cc: | pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: Access to dynamic SQL in PL/pgSQL |
| Date: | 2010-01-22 11:54:01 |
| Message-ID: | 1264161241.4043.14467.camel@ebony |
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| Lists: | pgsql-hackers |
On Fri, 2010-01-22 at 13:39 +0200, Heikki Linnakangas wrote:
> Simon Riggs wrote:
> > It's not currently possible to access the SQL used in a dynamic PL/pgSQL
> > statement using a PL/pgSQL plugin.
> >
> > In src/pl/plpgsql/src/pl_exec.c's exec_stmt() we call each dynamic
> > statement type, evaluate the SQL and free memory again before the plugin
> > gains control again.
> >
> > It seems simple to attach querystr to PLpgSQL_execstate and free it
> > after the plugin has seen it. The difference in lifetime of the memory
> > allocation is very small.
>
> Is this for pl/debugger? How would you use the query string there?
Yes, PL/debugger would have access to the text of the dynamic SQL
string.
--
Simon Riggs www.2ndQuadrant.com
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