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Wed, 16 Apr 2025 20:22:03 +0000 Content-Type: multipart/mixed; boundary="===============8579409031684054843==" MIME-Version: 1.0 Subject: BUG #18896: A potential problem in heap_page_items (pageinspect, PG-17) To: pgsql-bugs@lists.postgresql.org From: PG Bug reporting form Cc: d.kovalenko@postgrespro.ru Reply-To: d.kovalenko@postgrespro.ru, pgsql-bugs@lists.postgresql.org Date: Wed, 16 Apr 2025 20:21:16 +0000 Message-ID: <18896-add267b8e06663e3@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 --===============8579409031684054843== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 VGhlIGZvbGxvd2luZyBidWcgaGFzIGJlZW4gbG9nZ2VkIG9uIHRoZSB3ZWJzaXRlOgoKQnVnIHJl ZmVyZW5jZTogICAgICAxODg5NgpMb2dnZWQgYnk6ICAgICAgICAgIERtaXRyeSBLb3ZhbGVua28K RW1haWwgYWRkcmVzczogICAgICBkLmtvdmFsZW5rb0Bwb3N0Z3Jlc3Byby5ydQpQb3N0Z3JlU1FM IHZlcnNpb246IDE3LjQKT3BlcmF0aW5nIHN5c3RlbTogICBVYnVudHUgMjAyNC4wNApEZXNjcmlw dGlvbjogICAgICAgIAoKSGVsbG8sDQoNClBsZWFzZSwgbG9vayBhdCB0aGlzIGNvZGUgaW4gaGVh cF9wYWdlX2l0ZW1zIGZ1bmN0aW9uOg0KDQpodHRwczovL2dpdGh1Yi5jb20vcG9zdGdyZXMvcG9z dGdyZXMvYmxvYi8xMWZmMTkyYjViYjcwN2JhOWVjMTNhMGI2Yzc0Njg4NzQ0MDNhYmIzL2NvbnRy aWIvcGFnZWluc3BlY3QvaGVhcGZ1bmNzLmMjTDIzMS1MMjQ4DQoNCklmIGxwX2xlbiB2YWx1ZSBp cyBsZXNzIHRoYW4gdHVwaGRyLT50X2hvZmYsIHdlIGdldCBhIHByb2JsZW0gd2l0aCBuZWdhdGl2 ZQp2YWx1ZSBpbiB0dXBsZV9kYXRhX2xlbg0KDQpJIHRoaW5rLCB3ZSBzaG91bGQgbW92ZSB0aGUg Y29kZSBvZiAvKiBDb3B5IHJhdyB0dXBsZSBkYXRhIGludG8gYnl0ZWEKYXR0cmlidXRlICovIGlu dG8gdGhlIG5leHQgaWYgKC4uLi4gdHVwaGRyLT50X2hvZmYgPD0gbHBfbGVuIC4uLi4pCnNlY3Rp b24uDQoNCkFuZCBzZXQgbnVsbHNbMTNdID0gdHJ1ZTsgdG8gZWxzZSBzZWN0aW9uIGhlcmUgLQpo dHRwczovL2dpdGh1Yi5jb20vcG9zdGdyZXMvcG9zdGdyZXMvYmxvYi8xMWZmMTkyYjViYjcwN2Jh OWVjMTNhMGI2Yzc0Njg4NzQ0MDNhYmIzL2NvbnRyaWIvcGFnZWluc3BlY3QvaGVhcGZ1bmNzLmMj TDI2N0M1LUwyNjgNCg0KLS0tLS0tLS0gW2NvcHkgb2YgcHJvYmxlbSBibG9jayBhdCBsaW5lcyAy MzEgLi4uIDI0OF0NCgkvKiBDb3B5IHJhdyB0dXBsZSBkYXRhIGludG8gYnl0ZWEgYXR0cmlidXRl ICovDQoJdHVwbGVfZGF0YV9sZW4gPSBscF9sZW4gLSB0dXBoZHItPnRfaG9mZjsgIC8vIDwgLS0t LS0tLS0tLS0tLS0tLS0KU1VCU1RSQUNUDQoJdHVwbGVfZGF0YV9ieXRlYSA9IChieXRlYSAqKSBw YWxsb2ModHVwbGVfZGF0YV9sZW4gKyBWQVJIRFJTWik7DQoJU0VUX1ZBUlNJWkUodHVwbGVfZGF0 YV9ieXRlYSwgdHVwbGVfZGF0YV9sZW4gKyBWQVJIRFJTWik7DQoJbWVtY3B5KFZBUkRBVEEodHVw bGVfZGF0YV9ieXRlYSksIChjaGFyICopIHR1cGhkciArIHR1cGhkci0+dF9ob2ZmLA0KCQl0dXBs ZV9kYXRhX2xlbik7IC8vIDwgLS0tLS0tLS0tLS0tLS0tLS0tLSBVU0FHRQ0KCXZhbHVlc1sxM10g PSBQb2ludGVyR2V0RGF0dW0odHVwbGVfZGF0YV9ieXRlYSk7DQoNCg0KCS8qDQoJICogV2UgYWxy ZWFkeSBjaGVja2VkIHRoYXQgdGhlIGl0ZW0gaXMgY29tcGxldGVseSB3aXRoaW4gdGhlIHJhdw0K CSAqIHBhZ2UgcGFzc2VkIHRvIHVzLCB3aXRoIHRoZSBsZW5ndGggZ2l2ZW4gaW4gdGhlIGxpbmUg cG9pbnRlci4NCgkgKiBMZXQncyBjaGVjayB0aGF0IHRfaG9mZiBkb2Vzbid0IHBvaW50IG92ZXIg bHBfbGVuLCBiZWZvcmUgdXNpbmcNCgkgKiBpdCB0byBhY2Nlc3MgdF9iaXRzIGFuZCBvaWQuDQoJ ICovDQoJaWYgKHR1cGhkci0+dF9ob2ZmID49IFNpemVvZkhlYXBUdXBsZUhlYWRlciAmJg0KCQl0 dXBoZHItPnRfaG9mZiA8PSBscF9sZW4gJiYgLy8gPCAtLS0tLS0tLS0tLS0tLS0tLS0gVkVSSUZJ Q0FUSU9ODQoJCXR1cGhkci0+dF9ob2ZmID09IE1BWEFMSUdOKHR1cGhkci0+dF9ob2ZmKSkNCgl7 DQotLS0tLS0tLQ0KDQpJIGhvcGUsIHRoaXMgcHJvYmxlbSBjYW4gYmUgZml4ZWQgcmVhbGx5IGVh c2lseS4NCg0KVGhhbmtzJlJlZ2FyZHMsDQpLb3ZhbGVua28gRG1pdHJ5DQpQb3N0Z3Jlc1Bybywg UnVzc2lhLgoK --===============8579409031684054843==--