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Wed, 14 Jun 2023 16:00:03 +0000 Content-Type: multipart/mixed; boundary="===============7292049243704637293==" MIME-Version: 1.0 Subject: BUG #17976: Inconsistent results of SELECT using CASE WHEN clause To: pgsql-bugs@lists.postgresql.org From: PG Bug reporting form Cc: zuming.jiang@inf.ethz.ch Reply-To: zuming.jiang@inf.ethz.ch, pgsql-bugs@lists.postgresql.org Date: Wed, 14 Jun 2023 15:59:47 +0000 Message-ID: <17976-4b638b525e9a983b@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 --===============7292049243704637293== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 VGhlIGZvbGxvd2luZyBidWcgaGFzIGJlZW4gbG9nZ2VkIG9uIHRoZSB3ZWJzaXRlOgoKQnVnIHJl ZmVyZW5jZTogICAgICAxNzk3NgpMb2dnZWQgYnk6ICAgICAgICAgIFp1bWluZyBKaWFuZwpFbWFp bCBhZGRyZXNzOiAgICAgIHp1bWluZy5qaWFuZ0BpbmYuZXRoei5jaApQb3N0Z3JlU1FMIHZlcnNp b246IDE2YmV0YTEKT3BlcmF0aW5nIHN5c3RlbTogICBVYnVudHUgMjAuMDQKRGVzY3JpcHRpb246 ICAgICAgICAKCk15IGZ1enplciBmaW5kcyBhIGxvZ2ljYWwgYnVnIGluIFBvc3RncmVzLCB3aGlj aCBtYWtlcyBQb3N0Z3JlcyByZXR1cm4KaW5jb25zaXN0ZW50IHJlc3VsdHMuDQoNCi0tLSBTZXQg dXAgZGF0YWJhc2UgLS0tDQpjcmVhdGUgdGFibGUgdDAgKGMyIHRleHQpOw0KY3JlYXRlIHRhYmxl IHQxIChwa2V5IGludDQsIGM0IGludDQsIGM1IHRleHQsIGM2IGludDQsIGM4IGZsb2F0OCwgYzkK aW50NCk7DQpjcmVhdGUgdGFibGUgdDIgKGMxMCB0ZXh0LCBjMTIgdGltZXN0YW1wKTsNCkNSRUFU RSBWSUVXIHQzIEFTDQogU0VMRUNUICcxJyBBUyBjXzANCiAgIEZST00gKCggU0VMRUNUIHJlZl8w LmMyIEFTIGNfMA0KICAgICAgICAgICBGUk9NIHQwIHJlZl8wDQogICAgICAgICAgR1JPVVAgQlkg cmVmXzAuYzIpIHN1YnFfMA0KICAgICBGVUxMIEpPSU4gdDIgcmVmXzEgT04gKChzdWJxXzAuY18w ID0gcmVmXzEuYzEwKSkpDQogIFdIRVJFIChyZWZfMS5jMTIgPiByZWZfMS5jMTIpOw0KQ1JFQVRF IFZJRVcgdDQgQVMNCiBTRUxFQ1QNCiAgICByZWZfMS5jOSBBUyBjXzIsDQogICAgcmVmXzEuYzgg QVMgY18zLA0KICAgIHJlZl8xLmM0IEFTIGNfNCwNCiAgICAxIEFTIGNfNiwNCiAgICByZWZfMS5j NiBBUyBjXzkNCiAgIEZST00gKHQzIHJlZl8wDQogICAgIFJJR0hUIEpPSU4gdDEgcmVmXzEgT04g KChyZWZfMC5jXzAgPSByZWZfMS5jNSkpKTsNCmluc2VydCBpbnRvIHQxIHZhbHVlcyAoMTEwMDAs IDAsIG51bGw6OnRleHQsIDAsIDAuMCwgMTUpOw0KLS0tDQoNClRoZSBmdXp6ZXIgZ2VuZXJhdGVz IFRlc3QgY2FzZSAxOg0KDQotLS0gVGVzdCBjYXNlIDEgLS0tDQpzZWxlY3QgY291bnQoKikgYXMg Y182DQogIGZyb20NCiAgICAodDEgYXMgcmVmXzE1DQogICAgICBsZWZ0IG91dGVyIGpvaW4gdDQg YXMgcmVmXzE2DQogICAgICBvbiAocmVmXzE1LnBrZXkgPSByZWZfMTYuY18yKSkNCiAgd2hlcmUg KGNhc2Ugd2hlbiAoKChyZWZfMTYuY185ID49IHJlZl8xNi5jXzQpDQogICAgICAgICAgICAgICAg ICAgb3IgKG5vdCAocmVmXzE2LmNfOSA+PSByZWZfMTYuY180KSkpDQogICAgICAgICAgICAgICAg ICAgb3IgKChyZWZfMTYuY185ID49IHJlZl8xNi5jXzQpIGlzIG51bGwpKQ0KICAgICAgICAgICAg ICB0aGVuIHJlZl8xNi5jXzMgZWxzZSByZWZfMTYuY18zIGVuZA0KICAgICAgICApID0gcGdfY2F0 YWxvZy5kY2JydChjYXNlIHdoZW4gKCgocmVmXzE1LmM1IGxpa2UgJzcleicpDQogICAgICAgICAg ICAgICAgICAgICAgICAgICAgICAgICAgICAgICBhbmQgKG5vdCAocmVmXzE1LmM1IGxpa2UgJzcl eicpKSkNCiAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgIGFuZCAoKHJlZl8x NS5jNSBsaWtlICc3JXonKSBpcyBub3QKbnVsbCkpDQogICAgICAgICAgICAgICAgICAgICAgICAg ICAgICAgICAgdGhlbiByZWZfMTYuY182IGVsc2UgcmVmXzE1LmM4IGVuZCk7DQotLS0NCg0KQmVj YXVzZSBgcmVmXzE2LmNfOSA+PSByZWZfMTYuY180YCBjb3VsZCBvbmx5IGJlIFRSVUUsIEZBTFNF LCBvciBOVUxMLApgKCgocmVmXzE2LmNfOSA+PSByZWZfMTYuY180KSBvciAobm90IChyZWZfMTYu Y185ID49IHJlZl8xNi5jXzQpKSkgb3IKKChyZWZfMTYuY185ID49IHJlZl8xNi5jXzQpIGlzIG51 bGwpKWAgbXVzdCBiZSBUUlVFLiBUaGVyZWZvcmUsIEkgcmVwbGFjZQpgKCgocmVmXzE2LmNfOSA+ PSByZWZfMTYuY180KSBvciAobm90IChyZWZfMTYuY185ID49IHJlZl8xNi5jXzQpKSkgb3IKKChy ZWZfMTYuY185ID49IHJlZl8xNi5jXzQpIGlzIG51bGwpKWAgd2l0aCBUUlVFLCBhbmQgZ2V0IFRl c3QgY2FzZSAyOg0KDQotLS0gVGVzdCBjYXNlIDIgLS0tDQpzZWxlY3QgY291bnQoKikgYXMgY182 DQogIGZyb20NCiAgICAodDEgYXMgcmVmXzE1DQogICAgICBsZWZ0IG91dGVyIGpvaW4gdDQgYXMg cmVmXzE2DQogICAgICBvbiAocmVmXzE1LnBrZXkgPSByZWZfMTYuY18yKSkNCiAgd2hlcmUgKGNh c2Ugd2hlbiB0cnVlDQogICAgICAgICAgICAgIHRoZW4gcmVmXzE2LmNfMyBlbHNlIHJlZl8xNi5j XzMgZW5kDQogICAgICAgICkgPSBwZ19jYXRhbG9nLmRjYnJ0KGNhc2Ugd2hlbiAoKChyZWZfMTUu YzUgbGlrZSAnNyV6JykNCiAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgIGFu ZCAobm90IChyZWZfMTUuYzUgbGlrZSAnNyV6JykpKQ0KICAgICAgICAgICAgICAgICAgICAgICAg ICAgICAgICAgICAgICAgYW5kICgocmVmXzE1LmM1IGxpa2UgJzcleicpIGlzIG5vdApudWxsKSkN CiAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICB0aGVuIHJlZl8xNi5jXzYgZWxzZSBy ZWZfMTUuYzggZW5kKTsNCi0tLQ0KDQotLS0gRXhwZWN0ZWQgYmVoYXZpb3IgLS0tDQpUZXN0IGNh c2UgMSBhbmQgVGVzdCBjYXNlIDIgcmV0dXJuIHRoZSBzYW1lIHJlc3VsdHMuDQoNCi0tLSBBY3R1 YWwgYmVoYXZpb3IgLS0tDQpUZXN0IGNhc2UgMSByZXR1cm5zIDEsIHdoaWxlIFRlc3QgY2FzZSBy ZXR1cm5zIDAuDQoNCi0tLSBQb3N0Z3JlcyB2ZXJzaW9uIC0tLQ0KR2l0aHViIGNvbW1pdDogM2Yx YWFhYTE4MDY4OWYyMDE1ZTdmN2JkMDFjOWJlNmQ3YTk5M2I0Mg0KVmVyc2lvbjogUG9zdGdyZVNR TCAxNmJldGExIG9uIHg4Nl82NC1wYy1saW51eC1nbnUsIGNvbXBpbGVkIGJ5IGdjYyAoVWJ1bnR1 CjkuNC4wLTF1YnVudHUxfjIwLjA0LjEpIDkuNC4wLCA2NC1iaXQNCg0KLS0tIFBsYXRmb3JtIGlu Zm9ybWF0aW9uIC0tLQ0KUGxhdGZvcm06IFVidW50dSAyMC4wNA0KS2VybmVsOiBMaW51eCA1LjQu MC0xNDctZ2VuZXJpYwoK --===============7292049243704637293==--