Re: Support "Right Semi Join" plan shapes

From: Alena Rybakina <lena(dot)ribackina(at)yandex(dot)ru>
To: wenhui qiu <qiuwenhuifx(at)gmail(dot)com>
Cc: Richard Guo <guofenglinux(at)gmail(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>, vignesh C <vignesh21(at)gmail(dot)com>
Subject: Re: Support "Right Semi Join" plan shapes
Date: 2024-03-09 13:24:25
Message-ID: 61d96d88-78c6-46f9-916b-6b3f8f273229@yandex.ru
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On 06.03.2024 05:23, wenhui qiu wrote:
>
>
> Hi Alena Rybakina
> For merge join
> + /*
> + * For now we do not support RIGHT_SEMI join in mergejoin.
> + */
> + if (jointype == JOIN_RIGHT_SEMI)
> + {
> + *mergejoin_allowed = false;
> + return NIL;
> + }
> +
> Tanks
>
>
Yes, I see it, thank you. Sorry for the noise.

--
Regards,
Alena Rybakina
Postgres Professional:http://www.postgrespro.com
The Russian Postgres Company

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