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 1wgmmQ-006Om7-1O for pgsql-committers@arkaria.postgresql.org; Mon, 06 Jul 2026 17:06:50 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.96) (envelope-from ) id 1wgmmP-001yQn-0G for pgsql-committers@arkaria.postgresql.org; Mon, 06 Jul 2026 17:06:49 +0000 Received: from makus.postgresql.org ([2001:4800:3e1:1::229]) by malur.postgresql.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1wgmmO-001yQX-2p for pgsql-committers@lists.postgresql.org; Mon, 06 Jul 2026 17:06:48 +0000 Received: from mahout.postgresql.org ([2001:4800:3e1:1::227]) by makus.postgresql.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.98.2) (envelope-from ) id 1wgmmM-00000001sXS-3bMq for pgsql-committers@lists.postgresql.org; Mon, 06 Jul 2026 17:06:48 +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-00C1V5-17 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-001cNn-19 for pgsql-committers@lists.postgresql.org; Mon, 06 Jul 2026 17:06:45 +0000 Content-Type: multipart/mixed; boundary="===============4966925227387717053==" 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 --===============4966925227387717053== 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 LS0tLS0KUkVMXzE4X1NUQUJMRQoKRGV0YWlscwotLS0tLS0tCmh0dHBzOi8vZ2l0LnBvc3RncmVz cWwub3JnL3BnL2NvbW1pdGRpZmYvZDBiYjQ5ZTYxMTY4OTUzZjBmMDdjM2JlZWIyYjhmYjYzYTM1 MjFhMgoKTW9kaWZpZWQgRmlsZXMKLS0tLS0tLS0tLS0tLS0Kc3JjL2JhY2tlbmQvdXRpbHMvYWR0 L2xpa2Vfc3VwcG9ydC5jICAgICAgICAgICB8IDIwICsrKysrKysrKysrKysrKystLS0tCnNyYy90 ZXN0L3JlZ3Jlc3MvZXhwZWN0ZWQvY29sbGF0ZS5pY3UudXRmOC5vdXQgfCAyMyArKysrKysrKysr KysrKysrKysrKysrKwpzcmMvdGVzdC9yZWdyZXNzL2V4cGVjdGVkL2NvbGxhdGUub3V0ICAgICAg ICAgIHwgMjMgKysrKysrKysrKysrKysrKysrKysrKysKc3JjL3Rlc3QvcmVncmVzcy9zcWwvY29s bGF0ZS5pY3UudXRmOC5zcWwgICAgICB8IDEwICsrKysrKysrKysKc3JjL3Rlc3QvcmVncmVzcy9z cWwvY29sbGF0ZS5zcWwgICAgICAgICAgICAgICB8IDEwICsrKysrKysrKysKNSBmaWxlcyBjaGFu Z2VkLCA4MiBpbnNlcnRpb25zKCspLCA0IGRlbGV0aW9ucygtKQoK --===============4966925227387717053==--