Received: from malur.postgresql.org ([217.196.149.56]) by arkaria.postgresql.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1tEN1x-006yND-In for pgsql-general@arkaria.postgresql.org; Fri, 22 Nov 2024 06:20:38 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.94.2) (envelope-from ) id 1tEN1v-005p4O-O3 for pgsql-general@arkaria.postgresql.org; Fri, 22 Nov 2024 06:20:35 +0000 Received: from makus.postgresql.org ([2001:4800:3e1:1::229]) by malur.postgresql.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1tEN1v-005p4F-AW for pgsql-general@lists.postgresql.org; Fri, 22 Nov 2024 06:20:35 +0000 Received: from sender-op-o11.zoho.eu ([136.143.169.11]) by makus.postgresql.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1tEN1r-003Amn-B5 for pgsql-general@postgresql.org; Fri, 22 Nov 2024 06:20:33 +0000 ARC-Seal: i=1; a=rsa-sha256; t=1732256423; cv=none; d=zohomail.eu; s=zohoarc; b=WbKnM63eKW16PAHAszxQEugsv7Yq7s1PbvvucLxJ6GrpqqASguPHNRhzLquxYmAlUYoqY3tpVzvvBXGiizhhHonrWmZBKx8SnfsGhnPjFic4EStngfYcJm6yBnYN+kdJIxsu00Z9y3OZ+bgDgprpZ8lIAPcNvLrNogj0IgdlBZI= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.eu; s=zohoarc; t=1732256423; h=Content-Type:Cc:Cc:Date:Date:From:From:In-Reply-To:MIME-Version:Message-ID:References:Subject:Subject:To:To:Message-Id:Reply-To; bh=bkdvy1lPJqo4VMvitCtxVWn8O1s5U9R1fjfE4YtMJ1Y=; b=eRkfI7jtIQO1uN46CbTIEepJ8jZpXBIoXyYuEHcLykFHj+JsHLEFkASXnoWdqSGAHpOr4LlUAp4K4HfjajTzYuHGw7YIqLVxIClYy12DxGulmhve3/12Ma+2wMUEDSeqweKYUQLIMJ/auqUu9sdGioBOQI7nr9CYKu+kW1Vv4Yc= ARC-Authentication-Results: i=1; mx.zohomail.eu; dkim=pass header.i=jasonic.dk; spf=pass smtp.mailfrom=kaare@jasonic.dk; dmarc=pass header.from= DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; t=1732256423; s=zmail; d=jasonic.dk; i=kaare@jasonic.dk; h=Date:Date:From:From:To:To:Cc:Cc:Message-Id:Message-Id:In-Reply-To:References:Subject:Subject:MIME-Version:Content-Type:Reply-To; bh=bkdvy1lPJqo4VMvitCtxVWn8O1s5U9R1fjfE4YtMJ1Y=; b=n9s2LaAQLjn8z2Awzdkofs4V5KWr2oaaoYzft6mOCijX8SOoOJjqaOmycsIc7l59 Tvl18EucGD5LosOgHD8nBmUwmDz8Sx4SJw6agQMfjUILy+/5ZgC+CX5AYci0uj0FDYJ M8n1CA/zBQIad8+fagc9U6vLcFlG51fPgx3hAktw= Received: from mail.zoho.eu by mx.zoho.eu with SMTP id 1732256420808188.10057357348433; Fri, 22 Nov 2024 07:20:20 +0100 (CET) Date: Fri, 22 Nov 2024 07:20:20 +0100 From: Kaare Rasmussen To: "Alvaro Herrera" Cc: "Dominique Devienne" , "Vijaykumar Jain" , "pgsql-general" Message-Id: <1935287538c.12320a527291389.7229223853382999474@jasonic.dk> In-Reply-To: <202411131340.63qb3y2wsinb@alvherre.pgsql> References: <202411131340.63qb3y2wsinb@alvherre.pgsql> Subject: Re: Fwd: A million users MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_Part_768501_2035540047.1732256420748" Importance: Medium User-Agent: Zoho Mail X-Mailer: Zoho Mail List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Archived-At: Precedence: bulk ------=_Part_768501_2035540047.1732256420748 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Hi That said, having a million users is a bit strange. Do you want to give each visitor to your website a unique Postgres role, or something like that? I think this is unusual, but it should work. OK, thanks for the feedback, all. It may not be necessary to have such a fine grained system, but I was just wondering. the caches used to store contents of system catalogs. I think you should test it out and see what happens. I haven't seen any published _actual_ benchmarks on this point. I will, if this progresses. I did want to know if something like this has been tried and failed before. /kaare ------=_Part_768501_2035540047.1732256420748 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: 7bit
Hi
That said, having a million users is a bit strange.  Do you want to give
each visitor to your website a unique Postgres role, or something like
that?  I think this is unusual, but it should work.

OK, thanks for the feedback, all. It may not be necessary to have such a fine grained system, but I was just wondering.


the caches used to store contents of system catalogs.  I think you
should test it out and see what happens.  I haven't seen any published
_actual_ benchmarks on this point.

I will, if this progresses. I did want to know if something like this has been tried and failed before.

/kaare



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