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 4.96) (envelope-from ) id 1wxFLC-002Y6L-2I for pgsql-committers@arkaria.postgresql.org; Fri, 21 Aug 2026 02:50:46 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.96) (envelope-from ) id 1wxFLB-00B63J-0Z for pgsql-committers@arkaria.postgresql.org; Fri, 21 Aug 2026 02:50:45 +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 4.96) (envelope-from ) id 1wxFLA-00B63B-32 for pgsql-committers@lists.postgresql.org; Fri, 21 Aug 2026 02:50:44 +0000 Received: from mahout.postgresql.org ([2001:4800:3e1:1::227]) by makus.postgresql.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.98.2) (envelope-from ) id 1wxFL9-00000001fyj-13Nw for pgsql-committers@lists.postgresql.org; Fri, 21 Aug 2026 02:50:44 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=postgresql.org; s=20171124; h=Date:Message-Id:Subject:To:From:MIME-Version: Content-Type:Sender:Reply-To:Cc:Content-Transfer-Encoding:Content-ID: Content-Description:In-Reply-To:References; bh=unXplOfF+2pV6FqcRNn85Aojra4gc8dgWIBLfROSkIM=; b=yUpvSVc2TJ2q+bAoOoyJAc/4ck TemaSGCtimtfWhR1iyzQIog3qId7X7BjOIEQB3BMfh+YW+8d7wOwewaLUw8xl0EEChA0fk82A+OKD yDeF2bs031HQAFWFl/amFpcFve5BUwEDPMSFT0f0YQti4FXlWSdshQzTyTyN6/S2sSsil23FHscLM YfUSXgqhaumLxOi1SZ0qNPAVBJU34YFGGi1TOWb6J++OVGzLXKzbEF8X34sPrEb1J2eEVqKMTRW8Q a7BfNNHVd6U+2SX9XIHOesNpo56j1hFKDawkxrGqOc+41E99uKmH8won7ax6R/L21V4PKdIEbKL1g eTuCs3Ug==; Received: from gemulon.postgresql.org ([2001:4800:3e1:1::198]) by mahout.postgresql.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1wxFL8-0051Uz-2m for pgsql-committers@lists.postgresql.org; Fri, 21 Aug 2026 02:50:42 +0000 Received: from localhost ([127.0.0.1] helo=gemulon.postgresql.org) by gemulon.postgresql.org with esmtp (Exim 4.98.2) (envelope-from ) id 1wxFL7-00000001Rru-0kfV for pgsql-committers@lists.postgresql.org; Fri, 21 Aug 2026 02:50:42 +0000 Content-Type: multipart/mixed; boundary="===============6387856385108228779==" MIME-Version: 1.0 From: David Rowley To: pgsql-committers@lists.postgresql.org Subject: pgsql: Reduce memory overheads for storing a Memoize tuple X-Auto-Response-Suppress: All Auto-Submitted: auto-generated Message-Id: Date: Fri, 21 Aug 2026 02:50:42 +0000 List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Archived-At: Precedence: bulk --===============6387856385108228779== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 UmVkdWNlIG1lbW9yeSBvdmVyaGVhZHMgZm9yIHN0b3JpbmcgYSBNZW1vaXplIHR1cGxlCgpUaGlz IHVzZXMgMTYgZmV3ZXIgYnl0ZXMgcGVyIHR1cGxlIHN0b3JlZCBpbiBlYWNoIE1lbW9pemVFbnRy eS4gIDI0IGJ5dGVzCmNhbiBiZSBzYXZlZCBieSBub3QgZG9pbmcgcGFsbG9jX29iamVjdChNZW1v aXplVHVwbGUpLCBhbmQgaW5zdGVhZCB3ZQpjYW4gc3RvcmUgdGhlIHBvaW50ZXIgdG8gdGhlIG5l eHQgdHVwbGUgYnkgcmVxdWVzdGluZyB0aGF0CkV4ZWNDb3B5U2xvdE1pbmltYWxUdXBsZUV4dHJh KCkgYWxsb2NhdGUgYW4gZXh0cmEgOCBieXRlcyBwZXIKTWluaW1hbFR1cGxlLCBhIG5ldCBzYXZp bmcgb2YgMTYgYnl0ZXMgcGVyIGNhY2hlZCB0dXBsZSwgd2hpY2ggZXF1YXRlcwp0byAzMyUgbGVz cyBtZW1vcnkgaW4gdGhlIG1vc3QgZXh0cmVtZSBjYXNlIChhc3N1bWluZyB2ZXJ5IGZldyBlbnRy aWVzCndpdGggbWFueSB0dXBsZXMgYW5kIHRoZSBuYXJyb3dlc3QgcG9zc2libGUgTWluaW1hbFR1 cGxlKS4gIFJlYWwtd29ybGQKY2FzZXMgd2lsbCBzYXZlIGxlc3MsIGFzIHdlJ3JlIG5vdCBzYXZp bmcgYW55dGhpbmcgb24gdGhlIE1lbW9pemVFbnRyeQppdHNlbGYsIG9ubHkgdHVwbGVzIHN0b3Jl ZCB3aXRoaW4gaXQuCgpTYXZpbmcgbWVtb3J5IGluIE1lbW9pemUgYWxsb3dzIG1vcmUgZW50cmll cyB0byBleGlzdCBjb25jdXJyZW50bHkgYW5kCnJlZHVjZXMgdGhlIGNoYW5jZXMgdGhhdCBhbiBl bnRyeSB3aWxsIGJlIGV2aWN0ZWQgZnJvbSB0aGUgY2FjaGUgZHVlIHRvCm1lbW9yeSBwcmVzc3Vy ZS4gIFRoYXQgaW5jcmVhc2VzIHRoZSBjaGFuY2VzIG9mIGdldHRpbmcgY2FjaGUgaGl0cy4KCkF1 dGhvcjogRGF2aWQgUm93bGV5IDxkZ3Jvd2xleW1sQGdtYWlsLmNvbT4KUmV2aWV3ZWQtYnk6IENo YW8gTGkgPGxpLmV2YW4uY2hhb0BnbWFpbC5jb20+CkRpc2N1c3Npb246IGh0dHBzOi8vcG9zdGdy LmVzL20vQ0FBcEhEdm9OdXJRenBSMm5aNGFMcTF2XzRnc3RzU2RpbVpQLW0zNFBNVEJQcHRuK3pR QG1haWwuZ21haWwuY29tCgpCcmFuY2gKLS0tLS0tCm1hc3RlcgoKRGV0YWlscwotLS0tLS0tCmh0 dHBzOi8vZ2l0LnBvc3RncmVzcWwub3JnL3BnL2NvbW1pdGRpZmYvNjA5Zjk2OWY2MWJiZTBjYWI4 MTdhMTJjNGI5ZjJjMWMwZmEzMjk3ZgoKTW9kaWZpZWQgRmlsZXMKLS0tLS0tLS0tLS0tLS0Kc3Jj L2JhY2tlbmQvZXhlY3V0b3Ivbm9kZU1lbW9pemUuYyB8IDEwNiArKysrKysrKysrKysrKysrKysr KysrKysrLS0tLS0tLS0tLS0tCnNyYy9pbmNsdWRlL25vZGVzL2V4ZWNub2Rlcy5oICAgICAgfCAg IDggKystCnNyYy90b29scy9wZ2luZGVudC90eXBlZGVmcy5saXN0ICAgfCAgIDEgLQozIGZpbGVz IGNoYW5nZWQsIDc1IGluc2VydGlvbnMoKyksIDQwIGRlbGV0aW9ucygtKQoK --===============6387856385108228779==--