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 1rYUkP-00GHbN-AS for pgsql-committers@arkaria.postgresql.org; Fri, 09 Feb 2024 17:33:09 +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 1rYUkO-00AO6J-Dn for pgsql-committers@arkaria.postgresql.org; Fri, 09 Feb 2024 17:33:08 +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 1rYUhO-00ALpx-Pp for pgsql-committers@lists.postgresql.org; Fri, 09 Feb 2024 17:30:02 +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 4.94.2) (envelope-from ) id 1rYUhJ-006KvG-Kk for pgsql-committers@lists.postgresql.org; Fri, 09 Feb 2024 17:30:02 +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 1rYUhH-0002gK-Gz for pgsql-committers@lists.postgresql.org; Fri, 09 Feb 2024 17:29:55 +0000 Received: from localhost ([127.0.0.1] helo=gemulon.postgresql.org) by gemulon.postgresql.org with esmtp (Exim 4.94.2) (envelope-from ) id 1rYUhG-005Q8u-NK for pgsql-committers@lists.postgresql.org; Fri, 09 Feb 2024 17:29:54 +0000 Content-Type: multipart/mixed; boundary="===============0485766133398285945==" MIME-Version: 1.0 From: Tom Lane To: pgsql-committers@lists.postgresql.org Subject: pgsql: Remove race condition in pg_get_expr(). X-Auto-Response-Suppress: All Auto-Submitted: auto-generated Message-Id: Date: Fri, 09 Feb 2024 17:29:54 +0000 List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Archived-At: Precedence: bulk --===============0485766133398285945== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 UmVtb3ZlIHJhY2UgY29uZGl0aW9uIGluIHBnX2dldF9leHByKCkuCgpTaW5jZSBpdHMgaW50cm9k dWN0aW9uLCBwZ19nZXRfZXhwcigpIGhhcyBpbnRlbmRlZCB0byBzaWxlbnRseQpyZXR1cm4gTlVM TCBpZiBjYWxsZWQgd2l0aCBhbiBpbnZhbGlkIHJlbGF0aW9uIE9JRCwgYXMgY2FuIGhhcHBlbgp3 aGVuIHNjYW5uaW5nIHRoZSBjYXRhbG9ncyBjb25jdXJyZW50bHkgd2l0aCByZWxhdGlvbiBkcm9w cy4KSG93ZXZlciwgdGhlcmUgaXMgYSByYWNlIGNvbmRpdGlvbjogd2UgY2hlY2sgdmFsaWRpdHkg b2YgdGhlIE9JRAphdCB0aGUgc3RhcnQsIGJ1dCBpdCBjb3VsZCBnZXQgZHJvcHBlZCBqdXN0IGFm dGVyd2FyZCwgbGVhZGluZyB0bwpmYWlsdXJlcy4gIFRoaXMgaXMgdGhlIGNhdXNlIG9mIHNvbWUg aW50ZXJtaXR0ZW50IGluc3RhYmlsaXR5IHdlJ3JlCnNlZWluZyBpbiBhIHByb3Bvc2VkIG5ldyB0 ZXN0IGNhc2UsIGFuZCBwcmVzdW1hYmx5IGl0J3MgYSBoYXphcmQgaW4KdGhlIGZpZWxkIGFzIHdl bGwuCgpXZSBjYW4gZml4IHRoaXMgYnkgQWNjZXNzU2hhcmVMb2NrLWluZyB0aGUgdGFyZ2V0IHJl bGF0aW9uIGZvciB0aGUKZHVyYXRpb24gb2YgcGdfZ2V0X2V4cHIoKS4gIFNpbmNlIHdlIGRvbid0 IHJlcXVpcmUgYW55IHBlcm1pc3Npb25zCm9uIHRoZSB0YXJnZXQgcmVsYXRpb24sIHRoaXMgaXMg c2VtYW50aWNhbGx5IGEgYml0IHVuZGVzaXJhYmxlLiAgQnV0Cml0IHR1cm5zIG91dCB0aGF0IHRo ZSBzZXRfcmVsYXRpb25fY29sdW1uX25hbWVzKCkgc3Vicm91dGluZSBhbHJlYWR5CnRha2VzIGEg dHJhbnNpZW50IEFjY2Vzc1NoYXJlTG9jayBvbiB0aGF0IHJlbGF0aW9uLCBhbmQgaGFzIGRvbmUg c2luY2UKY29tbWl0IDJmZmE3NDBiZSBpbiAyMDEyLiAgR2l2ZW4gdGhlIGxhY2sgb2YgY29tcGxh aW50cyBhYm91dCB0aGF0LCBpdApzZWVtcyBsaWtlIHRoZXJlIHNob3VsZCBiZSBubyBoYXJtIGlu IGhvbGRpbmcgdGhlIGxvY2sgYSBiaXQgbG9uZ2VyLgoKQmFjay1wYXRjaCB0byBhbGwgc3VwcG9y dGVkIGJyYW5jaGVzLgoKRGlzY3Vzc2lvbjogaHR0cHM6Ly9wb3N0Z3IuZXMvbS8zMWRkY2MwMS1h NzFiLTRlOGMtOTk0OC0wMWQxYzQ3MjkzY2FAZWlzZW50cmF1dC5vcmcKCkJyYW5jaAotLS0tLS0K UkVMXzE2X1NUQUJMRQoKRGV0YWlscwotLS0tLS0tCmh0dHBzOi8vZ2l0LnBvc3RncmVzcWwub3Jn L3BnL2NvbW1pdGRpZmYvNGViMjYxMTY1ZDEyOTRmNTkwYzdjMjc5YTg4MjVlNzNhYmU1N2VjZAoK TW9kaWZpZWQgRmlsZXMKLS0tLS0tLS0tLS0tLS0Kc3JjL2JhY2tlbmQvdXRpbHMvYWR0L3J1bGV1 dGlscy5jIHwgNjggKysrKysrKysrKysrKysrKysrKy0tLS0tLS0tLS0tLS0tLS0tLS0tCjEgZmls ZSBjaGFuZ2VkLCAzMyBpbnNlcnRpb25zKCspLCAzNSBkZWxldGlvbnMoLSkKCg== --===============0485766133398285945==--