On 26/04/12 13:11, Tom Lane wrote:
Toby Corkindale<toby.corkind...@strategicdata.com.au>  writes:
Just wondering if anyone else has thoughts on this?

I'm still suspicious that this is a bug.

Well, if you were to provide a reproducible test case, somebody might be
motivated to look into it.  There could be a memory leak in the planner
somewhere, but without a test case it's not very practical to go look
for it.

Hi,
I've created a bit of a test case now.
There's a Perl script here:
http://dryft.net/postgres/

Running it will create a test database that's populated with quite a lot of schemas and partitioned tables, and a few views.

Running EXPLAIN on the query on that database at the end added ~700MB to the server-side postgres process.

It's not the same as 3.4GB I've seen on our bigger database warehouse, but maybe it's enough to help?

Let me know if I can help elaborate further,

Toby

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