| From: | Andres Freund <andres(at)anarazel(dot)de> |
|---|---|
| To: | Pantelis Theodosiou <ypercube(at)gmail(dot)com> |
| Cc: | Radu Radutiu <rradutiu(at)gmail(dot)com>, pgsql-hackers(at)lists(dot)postgresql(dot)org |
| Subject: | Re: Postgresql OOM |
| Date: | 2024-06-07 17:04:19 |
| Message-ID: | 20240607170419.ov2mxw7vtjlal7mf@awork3.anarazel.de |
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| Lists: | pgsql-hackers |
Hi,
On 2024-06-06 13:58:24 +0100, Pantelis Theodosiou wrote:
> I am not qualified to answer on the OOM issue but why are you joining the
> same table (outputrequest) 4 times (using an identical join condition)?
The conditions aren't actually the same
rpl_rec_tro. input_sequence = r.input_sequence
rpl_snd_tro.reply_input_sequence = r.input_sequence
snd_tro. reply_input_sequence = t.input_sequence
First two are r.input_sequence to different columns, the third one also uses
reply_input_sequence but joins to t, not r.
Greetings,
Andres Freund
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