From: | Dave Cramer <pg(at)fastcrypt(dot)com> |
---|---|
To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
Cc: | "Guillaume Smet" <guillaume(dot)smet(at)gmail(dot)com>, "PostgreSQL JDBC" <pgsql-jdbc(at)postgresql(dot)org>, thierry(dot)buffet(at)fr(dot)nurun(dot)com |
Subject: | Re: Memory leaks using refcursors |
Date: | 2007-01-18 01:25:42 |
Message-ID: | 283BFCEF-8CA2-4955-A64F-39E94F2882F3@fastcrypt.com |
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Lists: | pgsql-jdbc |
Tom,
The driver ends up issuing a
fetch all in <unnamed portal 1>
which if I try to close gives an error
cursor "<unnamed portal 1>" does not exist
so my guess is the portal is gone... what else might be keeping
server memory ???
I thought about this and long running transactions and if this were
really a problem slony would certainly blow up, as it has
transactions that run days.
Dave
On 17-Jan-07, at 5:31 PM, Tom Lane wrote:
> "Guillaume Smet" <guillaume(dot)smet(at)gmail(dot)com> writes:
>> Isn't there a way to keep the cursor name and close it automatically
>> when the statement or the resulting result set is closed?
>
> While I agree that the driver probably should do that, I'm not sure
> why
> you are having a problem. A cursor doesn't normally accumulate its
> result set in memory on the backend side, so I wouldn't have expected
> all that big a memory leak. What queries are you executing?
>
> regards, tom lane
>
> ---------------------------(end of
> broadcast)---------------------------
> TIP 6: explain analyze is your friend
>
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