| From: | Jeff Janes <jeff(dot)janes(at)gmail(dot)com> |
|---|---|
| To: | Matthias Otterbach <mo(at)otterbach(dot)eu> |
| Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, pgsql-bugs(at)lists(dot)postgresql(dot)org |
| Subject: | Re: BUG #15700: PG 10 vs. 11: Large increase in memory usage when selecting BYTEA data (maybe memory leak) |
| Date: | 2019-03-18 20:44:02 |
| Message-ID: | CAMkU=1x_XySqXZ-1gCyoaipKLzefQSr1BuaHL12vy_9WKFnjYQ@mail.gmail.com |
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| Lists: | pgsql-bugs |
On Mon, Mar 18, 2019 at 2:50 PM Jeff Janes <jeff(dot)janes(at)gmail(dot)com> wrote:
>
> Doing that, I can reproduce the problem, and it seems to be using an
> implicitly declared cursor (which I have not run into before).
>
>
The culprit is f2dec34e19d3969ddd6. Also, it doesn't depend on bytea, it
leaks for text as well.
I looked at the patch and nothing in jumps out to me as causing a leak.
commit f2dec34e19d3969ddd616e671fe9a7b968bec812
Author: Andres Freund <andres(at)anarazel(dot)de>
Date: Wed Oct 11 16:26:35 2017 -0700
Use one stringbuffer for all rows printed in printtup.c.
Cheers,
Jeff
>
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