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Tue, 05 May 2026 01:35:22 +0000 Content-Type: multipart/mixed; boundary="===============6416994432326189460==" MIME-Version: 1.0 From: Richard Guo To: pgsql-committers@lists.postgresql.org Subject: pgsql: Consider collation when proving uniqueness from unique indexes X-Auto-Response-Suppress: All Auto-Submitted: auto-generated Message-Id: Date: Tue, 05 May 2026 01:35:22 +0000 List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Archived-At: Precedence: bulk --===============6416994432326189460== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Q29uc2lkZXIgY29sbGF0aW9uIHdoZW4gcHJvdmluZyB1bmlxdWVuZXNzIGZyb20gdW5pcXVlIGlu ZGV4ZXMKCnJlbGF0aW9uX2hhc191bmlxdWVfaW5kZXhfZm9yKCkgaGFzIGxvbmcgaGFkIGFuIFhY WCBub3RpbmcgdGhhdCBpdApkb2Vzbid0IGNoZWNrIGNvbGxhdGlvbnMgd2hlbiBtYXRjaGluZyBh IHVuaXF1ZSBpbmRleCdzIGNvbHVtbnMKYWdhaW5zdCBlcXVhbGl0eSBjbGF1c2VzLiAgVGhpcyB3 YXMgYmVuaWduIGFzIGxvbmcgYXMgYWxsIGNvbGxhdGlvbnMKaW4gcGxheSByZWR1Y2VkIHRvIHRo ZSBzYW1lIG5vdGlvbiBvZiBlcXVhbGl0eSwgYnV0IGhhcyBiZWVuIGluY29ycmVjdApzaW5jZSBu b25kZXRlcm1pbmlzdGljIGNvbGxhdGlvbnMgd2VyZSBpbnRyb2R1Y2VkIGluIFBHIDEyOiBhIHVu aXF1ZQppbmRleCB1bmRlciBhIGRldGVybWluaXN0aWMgY29sbGF0aW9uIGRvZXMgbm90IHByb3Zl IHVuaXF1ZW5lc3MgdW5kZXIKYSBub25kZXRlcm1pbmlzdGljIGNvbGxhdGlvbiwgbm9yIHZpY2Ug dmVyc2EuCgpUaGUgY29uc2VxdWVuY2UgaXMgd3JvbmcgcXVlcnkgcmVzdWx0cyBmb3IgYW55IHBs YW5uZXIgb3B0aW1pemF0aW9uCnRoYXQgY29uc3VtZXMgdGhlIGZhdWx0eSBwcm9vZiwgaW5jbHVk aW5nIGlubmVyLXVuaXF1ZSBqb2luIGV4ZWN1dGlvbgood2hpY2ggc3RvcHMgdGhlIGlubmVyIHNl YXJjaCBhZnRlciB0aGUgZmlyc3QgbWF0Y2ggcGVyIG91dGVyIHJvdyksCnVzZWxlc3MtbGVmdC1q b2luIHJlbW92YWwsIHNlbWlqb2luLXRvLWlubmVyam9pbiByZWR1Y3Rpb24sIGFuZApzZWxmLWpv aW4gZWxpbWluYXRpb24uCgpGaXggYnkgcmVxdWlyaW5nIHRoZSBpbmRleCdzIGNvbGxhdGlvbiB0 byBhZ3JlZSBvbiBlcXVhbGl0eSB3aXRoIHRoZQpjbGF1c2UncyBpbnB1dCBjb2xsYXRpb24uICBU d28gY29sbGF0aW9ucyBhZ3JlZSBvbiBlcXVhbGl0eSBpZiBlaXRoZXIKaXMgSW52YWxpZE9pZCAo ZGVub3RpbmcgYSBub24tY29sbGF0aW9uLXNlbnNpdGl2ZSBvcGVyYXRpb24sIHdoaWNoCmNhbm5v dCBjb25mbGljdCB3aXRoIHRoZSBvdGhlciBzaWRlKSwgaWYgdGhleSBoYXZlIHRoZSBzYW1lIE9J RCwgb3IgaWYKYm90aCBhcmUgZGV0ZXJtaW5pc3RpYzogYnkgZGVmaW5pdGlvbiBhIGRldGVybWlu aXN0aWMgY29sbGF0aW9uIHRyZWF0cwp0d28gc3RyaW5ncyBhcyBlcXVhbCBpZmYgdGhleSBhcmUg Ynl0ZS13aXNlIGVxdWFsIChzZWUgQ1JFQVRFCkNPTExBVElPTiksIHNvIGFueSB0d28gZGV0ZXJt aW5pc3RpYyBjb2xsYXRpb25zIHNoYXJlIHRoZSBzYW1lCmVxdWFsaXR5IHJlbGF0aW9uIGFuZCB0 aGUgdW5pcXVlbmVzcyBwcm9vZiBjYXJyaWVzIG92ZXIuICBBbnkgbWlzbWF0Y2gKaW52b2x2aW5n IGEgbm9uZGV0ZXJtaW5pc3RpYyBjb2xsYXRpb24gaXMgcmVqZWN0ZWQuCgpCYWNrLXBhdGNoIHRv IGFsbCBzdXBwb3J0ZWQgYnJhbmNoZXM7IHRoZSBidWcgaGFzIGV4aXN0ZWQgc2luY2UKbm9uZGV0 ZXJtaW5pc3RpYyBjb2xsYXRpb25zIHdlcmUgaW50cm9kdWNlZCBpbiBQRyAxMi4KCkF1dGhvcjog UmljaGFyZCBHdW8gPGd1b2ZlbmdsaW51eEBnbWFpbC5jb20+ClJldmlld2VkLWJ5OiBUb20gTGFu ZSA8dGdsQHNzcy5wZ2gucGEudXM+CkRpc2N1c3Npb246IGh0dHBzOi8vcG9zdGdyLmVzL20vQ0FN YldzNF9YVVVTVHl6Q2FSalVlZWFoV05xaT04Wk9BNVE0Y29pOHpVVkVEU0JrTTZBQG1haWwuZ21h aWwuY29tCkJhY2twYXRjaC10aHJvdWdoOiAxNAoKQnJhbmNoCi0tLS0tLQpSRUxfMTVfU1RBQkxF CgpEZXRhaWxzCi0tLS0tLS0KaHR0cHM6Ly9naXQucG9zdGdyZXNxbC5vcmcvcGcvY29tbWl0ZGlm Zi84NzJjOWZhZTc4YmM0YTk4ZDQ0Nzk0MGRiMDFhNWNhODNjNDYxODA0CgpNb2RpZmllZCBGaWxl cwotLS0tLS0tLS0tLS0tLQpzcmMvYmFja2VuZC9vcHRpbWl6ZXIvcGF0aC9pbmR4cGF0aC5jICAg ICAgICAgIHwgIDIwICsrLS0Kc3JjL2JhY2tlbmQvdXRpbHMvY2FjaGUvbHN5c2NhY2hlLmMgICAg ICAgICAgICB8ICAzOCArKysrKysrKwpzcmMvaW5jbHVkZS91dGlscy9sc3lzY2FjaGUuaCAgICAg ICAgICAgICAgICAgIHwgICAxICsKc3JjL3Rlc3QvcmVncmVzcy9leHBlY3RlZC9jb2xsYXRlLmlj dS51dGY4Lm91dCB8IDEyMyArKysrKysrKysrKysrKysrKysrKysrKysrCnNyYy90ZXN0L3JlZ3Jl c3Mvc3FsL2NvbGxhdGUuaWN1LnV0Zjguc3FsICAgICAgfCAgNDUgKysrKysrKysrCjUgZmlsZXMg Y2hhbmdlZCwgMjIwIGluc2VydGlvbnMoKyksIDcgZGVsZXRpb25zKC0pCgo= --===============6416994432326189460==--