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 1wl9VS-0014Vn-13 for pgsql-committers@arkaria.postgresql.org; Sat, 18 Jul 2026 18:11:22 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.96) (envelope-from ) id 1wl9VR-003YA9-0a for pgsql-committers@arkaria.postgresql.org; Sat, 18 Jul 2026 18:11:21 +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 4.96) (envelope-from ) id 1wl9Tj-003Wzc-1o for pgsql-committers@lists.postgresql.org; Sat, 18 Jul 2026 18:09:35 +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 4.98.2) (envelope-from ) id 1wl9Td-00000000xLE-1tGW for pgsql-committers@lists.postgresql.org; Sat, 18 Jul 2026 18:09:35 +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 4.96) (envelope-from ) id 1wl9Tb-002buG-0g for pgsql-committers@lists.postgresql.org; Sat, 18 Jul 2026 18:09:27 +0000 Received: from localhost ([127.0.0.1] helo=gemulon.postgresql.org) by gemulon.postgresql.org with esmtp (Exim 4.96) (envelope-from ) id 1wl9Ta-000o2h-27 for pgsql-committers@lists.postgresql.org; Sat, 18 Jul 2026 18:09:27 +0000 Content-Type: multipart/mixed; boundary="===============3293027906911763301==" MIME-Version: 1.0 From: Tom Lane To: pgsql-committers@lists.postgresql.org Subject: pgsql: Fix edge case in remove_useless_result_rtes() with outer joins. X-Auto-Response-Suppress: All Auto-Submitted: auto-generated Message-Id: Date: Sat, 18 Jul 2026 18:09:27 +0000 List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Archived-At: Precedence: bulk --===============3293027906911763301== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Rml4IGVkZ2UgY2FzZSBpbiByZW1vdmVfdXNlbGVzc19yZXN1bHRfcnRlcygpIHdpdGggb3V0ZXIg am9pbnMuCgpmaW5kX2RlcGVuZGVudF9waHZzKCkgYW5kIGZpbmRfZGVwZW5kZW50X3BodnNfaW5f am9pbnRyZWUoKSBkZWNpZGUKd2hldGhlciBhIFBsYWNlSG9sZGVyVmFyIGRlcGVuZHMgb24gdGhl IFJURV9SRVNVTFQgcmVsIHdlJ3JlCmNvbnNpZGVyaW5nIHJlbW92aW5nIGJ5IGNvbXBhcmluZyB0 aGUgUEhWJ3MgcGhyZWxzIHRvIGEgc2luZ2xldG9uIHNldApjb250YWluaW5nIHRoYXQgcmVsJ3Mg UlQgaW5kZXgsIHJlYXNvbmluZyB0aGF0IGlmIHBocmVscyBjb250YWlucyBhbnkKb3RoZXIgcmVs aWQgYml0cyB0aGVuIHRob3NlIGRlZmluZSBhbiBhcHByb3ByaWF0ZSBwbGFjZSB3aGVyZSB3ZSBj YW4KZXZhbHVhdGUgdGhlIFBIVi4gIEJ1dCBzaW5jZSB0aGlzIGNvZGUgd2FzIG9yaWdpbmFsbHkg d3JpdHRlbiwgd2UndmUKcmVkZWZpbmVkIHBocmVscyB0byBpbmNsdWRlIG91dGVyLWpvaW4gcmVs aWRzLCBhbmQgdGhhdCBicmVha3MgdGhpcwpsb2dpYywgcG90ZW50aWFsbHkgYWxsb3dpbmcgdXMg dG8gcmVtb3ZlIGFuIFJURV9SRVNVTFQgdGhhdCBsZWF2ZXMgbm8KdmFsaWQgcGxhY2UgdG8gZXZh bHVhdGUgdGhlIFBIVi4gIFRoZSBwbGFubmVyIGRvZXNuJ3QgdGhyb3cgYW4gZXJyb3IKd2hlbiB0 aGF0IGhhcHBlbnMsIGJ1dCBpdCBkb2VzIHByb2R1Y2UgYW4gaW5jb3JyZWN0IHBsYW4gdGhhdCB3 aWxsIG5vdApyZXBsYWNlIHRoZSBQSFYncyB2YWx1ZSB3aXRoIE5VTEwgd2hlbiBuZWVkZWQuCgpJ biB0aGUga25vd24gdGVzdCBjYXNlIGZvciB0aGlzIGJ1ZywgdGhlICJleHRyYSIgT0ogcmVsaWQg aXMgb25lIHRoYXQKd2UndmUgYWN0dWFsbHkgZGVjaWRlZCB0byByZW1vdmUgYnV0IGhhdmVuJ3Qg eWV0IGNsZWFuZWQgb3V0IG9mIHRoZQpxdWVyeSdzIFBIVnMuICBJdCdzIG5vdCBlbnRpcmVseSBj bGVhciB0aG91Z2ggdGhhdCB0aGF0IHdvdWxkIGFsd2F5cwpiZSB0aGUgY2FzZS4gIExldCdzIHJl c3RvcmUgdGhpcyBjb2RlIHRvIHRoZSB3YXkgaXQgd2FzIGRlc2lnbmVkIHRvCndvcmssIGJ5IGNv bnNpZGVyaW5nIG9ubHkgYmFzZSByZWxpZHMgd2l0aGluIHRoZSBQSFYncyBwaHJlbHMuCgpCdWc6 ICMxOTU1MwpSZXBvcnRlZC1ieTogVmlrdG9yIExlaXMgPGxlaXNAaW4udHVtLmRlPgpBdXRob3I6 IE1hdGhldXMgQWxjYW50YXJhIDxtYXRoZXVzc3NpbHY5N0BnbWFpbC5jb20+CkNvLWF1dGhvcmVk LWJ5OiBSaWNoYXJkIEd1byA8Z3VvZmVuZ2xpbnV4QGdtYWlsLmNvbT4KUmV2aWV3ZWQtYnk6IFRv bSBMYW5lIDx0Z2xAc3NzLnBnaC5wYS51cz4KRGlzY3Vzc2lvbjogaHR0cHM6Ly9wb3N0Z3IuZXMv bS8xOTU1My00NTYxNzQ3ZjkzZjM2OGE3QHBvc3RncmVzcWwub3JnCkJhY2twYXRjaC10aHJvdWdo OiAxNgoKQnJhbmNoCi0tLS0tLQpSRUxfMTZfU1RBQkxFCgpEZXRhaWxzCi0tLS0tLS0KaHR0cHM6 Ly9naXQucG9zdGdyZXNxbC5vcmcvcGcvY29tbWl0ZGlmZi8zZTFmZTI1ZTY4NmQ3ODhhMzJjOTI2 ZTJhYTc5YmM4ZDkzMTI4NDFiCgpNb2RpZmllZCBGaWxlcwotLS0tLS0tLS0tLS0tLQpzcmMvYmFj a2VuZC9vcHRpbWl6ZXIvcHJlcC9wcmVwam9pbnRyZWUuYyB8IDY0ICsrKysrKysrKysrKysrKysr KysrKysrKy0tLS0tLS0Kc3JjL3Rlc3QvcmVncmVzcy9leHBlY3RlZC9qb2luLm91dCAgICAgICAg fCAyNyArKysrKysrKysrKysrCnNyYy90ZXN0L3JlZ3Jlc3Mvc3FsL2pvaW4uc3FsICAgICAgICAg ICAgIHwgMTAgKysrKysKMyBmaWxlcyBjaGFuZ2VkLCA4OCBpbnNlcnRpb25zKCspLCAxMyBkZWxl dGlvbnMoLSkKCg== --===============3293027906911763301==--