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 1vVUaN-004QNn-2Q for pgsql-bugs@arkaria.postgresql.org; Tue, 16 Dec 2025 12:55:28 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.96) (envelope-from ) id 1vVUaL-006ZjN-2Z for pgsql-bugs@arkaria.postgresql.org; Tue, 16 Dec 2025 12:55:26 +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 1vVLP4-003ktb-0u for pgsql-bugs@lists.postgresql.org; Tue, 16 Dec 2025 03:07:11 +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 1vVLP1-000yMm-0P for pgsql-bugs@lists.postgresql.org; Tue, 16 Dec 2025 03:07:10 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=postgresql.org; s=20171124; h=Message-ID:Date:Reply-To:Cc:From:To:Subject: MIME-Version:Content-Type:Sender:Content-Transfer-Encoding:Content-ID: Content-Description:In-Reply-To:References; bh=T2kAySAe2y+s84ELHXQDjocMY6AeNZPF2Pa9NNm+SKQ=; b=r16+gbWS7v7/Kp+iIVXStf5Dpu Mguoex1L6O5jqLB0X/YbW4XEjZaEH2rwX7nB1UL7yn5eXvEMrmfdwHHVURfd4nCuRLauf232TJSTL 73XxU1QjOTMT6T9EX9MH4oRoM1bbYp/m/ls2isVNlns+akZI8dzD2mSYRZb3B+Q9xi/aydH7wBFih KIShcTlQpBZmTryljW/ywieyfRoSoG4ZHj6JgYIfR0nw3a/yHVT2jSM/5Xnhf4LJLztojvU4Qbw+X VQnzEy0bJVv/8VlLF/n0Ui9SPHtMFYNB6xyC0JFTzPVdh4xQ9sxG249+fggAERPkjLb64ff2/EXj7 MpwUGcIA==; Received: from wrigleys.postgresql.org ([2a02:16a8:dc51::60]) by mahout.postgresql.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1vVLOz-002i0U-1f for pgsql-bugs@lists.postgresql.org; Tue, 16 Dec 2025 03:07:05 +0000 Received: from localhost ([127.0.0.1] helo=wrigleys.postgresql.org) by wrigleys.postgresql.org with esmtp (Exim 4.96) (envelope-from ) id 1vVLOw-004ih6-1h for pgsql-bugs@lists.postgresql.org; Tue, 16 Dec 2025 03:07:03 +0000 Content-Type: multipart/mixed; boundary="===============5520024184181786567==" MIME-Version: 1.0 Subject: BUG #19356: Unexpected result of prepared UPDATE with force_generic_plan To: pgsql-bugs@lists.postgresql.org From: PG Bug reporting form Cc: 798604270@qq.com Reply-To: 798604270@qq.com, pgsql-bugs@lists.postgresql.org Date: Tue, 16 Dec 2025 03:06:11 +0000 Message-ID: <19356-931e11b7f7a4db2b@postgresql.org> X-Auto-Response-Suppress: All Auto-Submitted: auto-generated List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Archived-At: Precedence: bulk --===============5520024184181786567== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 VGhlIGZvbGxvd2luZyBidWcgaGFzIGJlZW4gbG9nZ2VkIG9uIHRoZSB3ZWJzaXRlOgoKQnVnIHJl ZmVyZW5jZTogICAgICAxOTM1NgpMb2dnZWQgYnk6ICAgICAgICAgIENoaSBaaGFuZwpFbWFpbCBh ZGRyZXNzOiAgICAgIDc5ODYwNDI3MEBxcS5jb20KUG9zdGdyZVNRTCB2ZXJzaW9uOiAxNy42Ck9w ZXJhdGluZyBzeXN0ZW06ICAgdWJ1bnR1IDI0LjA0IHdpdGggZG9ja2VyCkRlc2NyaXB0aW9uOiAg ICAgICAgCgpIaSwKCkluIHRoZSBmb2xsb3dpbmcgdGVzdCBjYXNlLCB0aGUgV0hFUkUgY29uZGl0 aW9uIG9mIFVQREFURSBpcyB0cnVlOyBob3dldmVyLAp0aGUgdmFsdWUgaW4gdGhlIHRhYmxlIGlz IG5vdCB1cGRhdGVkOgoKYGBgClNFVCBwbGFuX2NhY2hlX21vZGUgPSBmb3JjZV9nZW5lcmljX3Bs YW47CkNSRUFURSBUQUJMRSB0MihjMCBpbnQ0cmFuZ2UpOwpJTlNFUlQgSU5UTyB0MihjMCkgVkFM VUVTKCdbLTEzNzIyMjU5MDQsLTQxMDc4NTAxNiknOjppbnQ0cmFuZ2UpIE9OIENPTkZMSUNUCkRP IE5PVEhJTkc7ClBSRVBBUkUgcHJlcGFyZV9xdWVyeSAodGV4dCwgaW50NHJhbmdlLCB0ZXh0LCB0 ZXh0LCBpbmV0KSBBUyBVUERBVEUgdDIgU0VUCmMwPURFRkFVTFQgV0hFUkUgTk9UICgoKCgoQ0FT VCgkMSBBUwppbnQ0cmFuZ2UpKSYmKCgodDIuYzApLSgkMikpKSkpQU5EKChxdW90ZV9saXRlcmFs KCQzKSBTSU1JTEFSIFRPCigoJDQpfHwoJDUpKSkpKSk7CkVYRUNVVEUgcHJlcGFyZV9xdWVyeSgn LTIwNzM1ODM4ODInLCAnWy0xMTkwMDczNzU0LDE2NTAxNTg4MTApJzo6aW50NHJhbmdlLAonPycs ICdqJlEnLCAnMTcxLjE5MS4xNDMuMzQnKTsKREVBTExPQ0FURSBwcmVwYXJlX3F1ZXJ5OwpTRUxF Q1QgRElTVElOQ1QgKiBGUk9NIHQyOwogICAgICAgICAgICBjMAotLS0tLS0tLS0tLS0tLS0tLS0t LS0tLS0tLQogWy0xMzcyMjI1OTA0LC00MTA3ODUwMTYpCigxIHJvdykKYGBgCgpUaGlzIGlzIHRo ZSByZXN1bHQgb2YgdGhlIGNvbmRpdGlvbjoKYGBgClBSRVBBUkUgcHJlcGFyZV9xdWVyeSAodGV4 dCwgaW50NHJhbmdlLCB0ZXh0LCB0ZXh0LCBpbmV0KSBBUyBTRUxFQ1QKKCgoKHF1b3RlX2xpdGVy YWwoJDMpIFNJTUlMQVIgVE8gKCgkNCl8fCgkNSkpKSkpKTsKRVhFQ1VURSBwcmVwYXJlX3F1ZXJ5 KCctMjA3MzU4Mzg4MicsICdbLTExOTAwNzM3NTQsMTY1MDE1ODgxMCknOjppbnQ0cmFuZ2UsCic/ JywgJ2omUScsICcxNzEuMTkxLjE0My4zNCcpOwogP2NvbHVtbj8KLS0tLS0tLS0tLQogZgooMSBy b3cpCmBgYAoKVGhlIGVxdWl2YWxlbnQgbm9ybWFsIFVQREFURSBjYW4gZXhlY3V0ZSBjb3JyZWN0 bHkgYFVQREFURSB0MiBTRVQgYzA9REVGQVVMVApXSEVSRSBOT1QgKCgoKChDQVNUKCctMjA3MzU4 Mzg4Mic6OnRleHQgQVMKaW50NHJhbmdlKSkmJigoKHQyLmMwKS0oJ1stMTE5MDA3Mzc1NCwxNjUw MTU4ODEwKSc6OmludDRyYW5nZSkpKSkpQU5EKChxdW90ZV9saXRlcmFsKCc/Jzo6dGV4dCkKU0lN SUxBUiBUTyAoKCdqJlEnOjp0ZXh0KXx8KCcxNzEuMTkxLjE0My4zNCc6OmluZXQpKSkpKSk7YAoK --===============5520024184181786567==--