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 1vFehu-00FUoA-Ag for pgsql-committers@arkaria.postgresql.org; Sun, 02 Nov 2025 20:29:45 +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 1vFeht-00DjpF-8l for pgsql-committers@arkaria.postgresql.org; Sun, 02 Nov 2025 20:29:44 +0000 Received: from magus.postgresql.org ([2a02:c0:301:0:ffff::29]) by malur.postgresql.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1vFegj-00Dilv-7x for pgsql-committers@lists.postgresql.org; Sun, 02 Nov 2025 20:28:32 +0000 Received: from mahout.postgresql.org ([2001:4800:3e1:1::227]) by magus.postgresql.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1vFegf-005d1n-1q for pgsql-committers@lists.postgresql.org; Sun, 02 Nov 2025 20:28:31 +0000 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 4.94.2) (envelope-from ) id 1vFege-008zpH-Ax for pgsql-committers@lists.postgresql.org; Sun, 02 Nov 2025 20:28:26 +0000 Received: from localhost ([127.0.0.1] helo=gemulon.postgresql.org) by gemulon.postgresql.org with esmtp (Exim 4.96) (envelope-from ) id 1vFegc-004jaa-0G for pgsql-committers@lists.postgresql.org; Sun, 02 Nov 2025 20:28:26 +0000 Content-Type: multipart/mixed; boundary="===============7000421397796562589==" MIME-Version: 1.0 From: Peter Geoghegan To: pgsql-committers@lists.postgresql.org Subject: pgsql: Document nbtree row comparison design. X-Auto-Response-Suppress: All Auto-Submitted: auto-generated Message-Id: Date: Sun, 02 Nov 2025 20:28:26 +0000 List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Archived-At: Precedence: bulk --===============7000421397796562589== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 RG9jdW1lbnQgbmJ0cmVlIHJvdyBjb21wYXJpc29uIGRlc2lnbi4KCkFkZCBjb21tZW50cyBleHBs YWluaW5nIHdoZW4gYW5kIHdoZXJlIGl0IGlzIHNhZmUgZm9yIG5idHJlZSB0byB0cmVhdApyb3cg Y29tcGFyZSBrZXlzIGFzIGlmIHRoZXkgd2VyZSBzaW1wbGUgc2NhbGFyIGluZXF1YWxpdHkga2V5 cyBvbiB0aGUKcm93J3MgbW9zdCBzaWduaWZpY2FudCBjb2x1bW4uICBUaGlzIGlzIHBhcnRpY3Vs YXJseSBpbXBvcnRhbnQgd2l0aGluCl9idF9hZHZhbmNlX2FycmF5X2tleXMsIHdoaWNoIGRlYWxz IHdpdGggcmVxdWlyZWQgaW5lcXVhbGl0eSBrZXlzIGluIGEKZ2VuZXJhbCBhbmQgdW5pZm9ybSB3 YXksIHdpdGhvdXQgYW55IHNwZWNpYWwgaGFuZGxpbmcgZm9yIHJvdyBjb21wYXJlcy4KCkFsc28g c3BlbGwgb3V0IHRoZSBpbXBsaWNhdGlvbnMgb2YgX2J0X2NoZWNrX3Jvd2NvbXBhcmUncyBhcHBy b2FjaCBvZgpfY29uZGl0aW9uYWxseV8gZXZhbHVhdGluZyBsb3dlci1vcmRlciByb3cgY29tcGFy ZSBzdWJrZXlzLCBwYXJ0aWN1bGFybHkKd2hlbiBvbmUgb2YgaXRzIGxvd2VyLW9yZGVyIHN1Ymtl eXMgbWlnaHQgc2VlIE5VTEwgaW5kZXggdHVwbGUgdmFsdWVzCih0aGVzZSBtYXkgb3IgbWF5IG5v dCBhZmZlY3Qgd2hldGhlciB0aGUgcXVhbCBhcyBhIHdob2xlIGlzIHNhdGlzZmllZCkuClRoZSBi ZWhhdmlvciBpbiB0aGlzIGFyZWEgaXNuJ3QgcGFydGljdWxhcmx5IGludHVpdGl2ZSwgc28gdGhl c2UgaXNzdWVzCnNlZW0gd29ydGggZ29pbmcgaW50by4KCkluIHBhc3NpbmcsIGFkZCBhIGZldyBt b3JlIGRlZmVuc2l2ZS9kb2N1bWVudGluZyByb3cgY29tcGFyaXNvbiByZWxhdGVkCmFzc2VydGlv bnMgdG8gX2J0X2ZpcnN0IGFuZCBfYnRfY2hlY2tfcm93Y29tcGFyZS4KCkZvbGxvdy11cCB0byBj b21taXRzIGJkM2Y1OWZkIGFuZCBlYzk4NjAyMC4KCkF1dGhvcjogUGV0ZXIgR2VvZ2hlZ2FuIDxw Z0Bib3d0LmllPgpSZXZpZXdlZC1CeTogVmljdG9yIFllZ29yb3YgPHZ5ZWdvcm92QGdtYWlsLmNv bT4KUmV2aWV3ZWQtQnk6IENoYW8gTGkgPGxpLmV2YW4uY2hhb0BnbWFpbC5jb20+CkRpc2N1c3Np b246IGh0dHBzOi8vcG9zdGdyLmVzL20vQ0FIMi1Xem53a2FrX0s3cGNBZHY5dUg4WmZObzhRTzcr dEhYT2FDVWRkTWVUZmFDQ0Z3QG1haWwuZ21haWwuY29tCkJhY2twYXRjaC10aHJvdWdoOiAxOAoK QnJhbmNoCi0tLS0tLQptYXN0ZXIKCkRldGFpbHMKLS0tLS0tLQpodHRwczovL2dpdC5wb3N0Z3Jl c3FsLm9yZy9wZy9jb21taXRkaWZmL2I4ZjFjNjI4MDdhNThkYzk3ZTkyNjJhMTdlN2QwY2FkYjMw NTMyMmIKCk1vZGlmaWVkIEZpbGVzCi0tLS0tLS0tLS0tLS0tCnNyYy9iYWNrZW5kL2FjY2Vzcy9u YnRyZWUvbmJ0c2VhcmNoLmMgfCAgOCArKystLQpzcmMvYmFja2VuZC9hY2Nlc3MvbmJ0cmVlL25i dHV0aWxzLmMgIHwgNjMgKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrLS0tLS0KMiBmaWxl cyBjaGFuZ2VkLCA2MCBpbnNlcnRpb25zKCspLCAxMSBkZWxldGlvbnMoLSkKCg== --===============7000421397796562589==--