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 1wgmmU-006OmJ-3C for pgsql-committers@arkaria.postgresql.org; Mon, 06 Jul 2026 17:06:54 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.96) (envelope-from ) id 1wgmmT-001zBm-2I for pgsql-committers@arkaria.postgresql.org; Mon, 06 Jul 2026 17:06:53 +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 1wgmmT-001zAf-1Y for pgsql-committers@lists.postgresql.org; Mon, 06 Jul 2026 17:06:53 +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 1wgmmN-000000025xP-37PI for pgsql-committers@lists.postgresql.org; Mon, 06 Jul 2026 17:06:53 +0000 Received: from gemulon.postgresql.org ([72.32.157.198]) by mahout.postgresql.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1wgmmM-00C1V3-17 for pgsql-committers@lists.postgresql.org; Mon, 06 Jul 2026 17:06:46 +0000 Received: from localhost ([127.0.0.1] helo=gemulon.postgresql.org) by gemulon.postgresql.org with esmtp (Exim 4.96) (envelope-from ) id 1wgmmL-001cNj-11 for pgsql-committers@lists.postgresql.org; Mon, 06 Jul 2026 17:06:45 +0000 Content-Type: multipart/mixed; boundary="===============6854166385755965917==" MIME-Version: 1.0 From: Tom Lane To: pgsql-committers@lists.postgresql.org Subject: pgsql: Fix LIKE/regex optimization for indexscan with exact-match patte X-Auto-Response-Suppress: All Auto-Submitted: auto-generated Message-Id: Date: Mon, 06 Jul 2026 17:06:45 +0000 List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Archived-At: Precedence: bulk --===============6854166385755965917== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Rml4IExJS0UvcmVnZXggb3B0aW1pemF0aW9uIGZvciBpbmRleHNjYW4gd2l0aCBleGFjdC1tYXRj aCBwYXR0ZXJuLgoKQ29tbWl0IDg1YjdlZmExYyBpbnRyb2R1Y2VkIHN1cHBvcnQgZm9yIExJS0Ug d2l0aCBub24tZGV0ZXJtaW5pc3RpYwpjb2xsYXRpb25zLiAgQnkgbW92aW5nIHNvbWUgY29uZGl0 aW9uYWxzIGFyb3VuZCwgaXQgYWNjaWRlbnRhbGx5IGJyb2tlCnRoZSBvcHRpbWl6YXRpb24gZm9y IGNvbnZlcnRpbmcgYSBMSUtFIG9yIHJlZ2V4IGV4YWN0LW1hdGNoIHBhdHRlcm4KdG8gYW4gZXF1 YWxpdHkgaW5kZXhxdWFsIHdoZW4gdGhlIGluZGV4IGNvbGxhdGlvbiBkb2Vzbid0IG1hdGNoIHRo ZQpleHByZXNzaW9uIGNvbGxhdGlvbi4gIFRoYXQgc2hvdWxkIGJlIGFsbG93ZWQgaWYgdGhlIGV4 cHJlc3Npb24KY29sbGF0aW9uIGlzIGRldGVybWluaXN0aWMuICBUaGlzIHBhdGNoIHJlLWludHJv ZHVjZXMgdGhlIG9wdGltaXphdGlvbgpmb3IgdGhhdCBjb21tb24gY2FzZS4KCk9uZSBpbXBvcnRh bnQgYmVuZWZpY2lhcnkgb2YgdGhpcyBvcHRpbWl6YXRpb24gaXMgdGhlICJcZCB0YWJsZW5hbWUi CmNvbW1hbmQgaW4gcHNxbC4gIFdpdGhvdXQgdGhpcyBmaXggdGhhdCB3aWxsIGRvIGEgc2Vxc2Nh biBvbiBwZ19jbGFzcwppbnN0ZWFkIG9mIGFuIGluZGV4IHBvaW50IGxvb2t1cC4KClJlcG9ydGVk LWJ5OiBBbmRyZXMgRnJldW5kIDxhbmRyZXNAYW5hcmF6ZWwuZGU+CkF1dGhvcjogSmVsdGUgRmVu bmVtYS1OaW8gPHBvc3RncmVzQGplbHRlZi5ubD4KUmV2aWV3ZWQtYnk6IFRvbSBMYW5lIDx0Z2xA c3NzLnBnaC5wYS51cz4KRGlzY3Vzc2lvbjogaHR0cHM6Ly9wb3N0Z3IuZXMvbS9ESEJRSVpYOFNa VkkuWlg2MTRaTUZMNjQ1QGplbHRlZi5ubApCYWNrcGF0Y2gtdGhyb3VnaDogMTgKCkJyYW5jaAot LS0tLS0KbWFzdGVyCgpEZXRhaWxzCi0tLS0tLS0KaHR0cHM6Ly9naXQucG9zdGdyZXNxbC5vcmcv cGcvY29tbWl0ZGlmZi8yZDc4MDhlNmZjMmNiNWQ3YTk2NGU3YTI0ODAxYTZmYTEzM2EzMjYxCgpN b2RpZmllZCBGaWxlcwotLS0tLS0tLS0tLS0tLQpzcmMvYmFja2VuZC91dGlscy9hZHQvbGlrZV9z dXBwb3J0LmMgICAgICAgICAgIHwgMjAgKysrKysrKysrKysrKysrKy0tLS0Kc3JjL3Rlc3QvcmVn cmVzcy9leHBlY3RlZC9jb2xsYXRlLmljdS51dGY4Lm91dCB8IDIzICsrKysrKysrKysrKysrKysr KysrKysrCnNyYy90ZXN0L3JlZ3Jlc3MvZXhwZWN0ZWQvY29sbGF0ZS5vdXQgICAgICAgICAgfCAy MyArKysrKysrKysrKysrKysrKysrKysrKwpzcmMvdGVzdC9yZWdyZXNzL3NxbC9jb2xsYXRlLmlj dS51dGY4LnNxbCAgICAgIHwgMTAgKysrKysrKysrKwpzcmMvdGVzdC9yZWdyZXNzL3NxbC9jb2xs YXRlLnNxbCAgICAgICAgICAgICAgIHwgMTAgKysrKysrKysrKwo1IGZpbGVzIGNoYW5nZWQsIDgy IGluc2VydGlvbnMoKyksIDQgZGVsZXRpb25zKC0pCgo= --===============6854166385755965917==--