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Wed, 16 Sep 2026 10:10:44 +0000 Content-Type: multipart/mixed; boundary="===============6323241571681141520==" MIME-Version: 1.0 From: Alexander Korotkov To: pgsql-committers@lists.postgresql.org Subject: pgsql: Use the join collation when unique-ifying a semijoin's RHS X-Auto-Response-Suppress: All Auto-Submitted: auto-generated Message-Id: Date: Wed, 16 Sep 2026 10:10:44 +0000 List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Archived-At: Precedence: bulk --===============6323241571681141520== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 VXNlIHRoZSBqb2luIGNvbGxhdGlvbiB3aGVuIHVuaXF1ZS1pZnlpbmcgYSBzZW1pam9pbidzIFJI UwoKQSBzZW1pam9pbiB3aG9zZSBSSFMgaXMgdW5pcXVlLWlmaWVkIGdyb3VwcyB0aGUgUkhTIG9u IHRoZSBleHByZXNzaW9ucyBpbgpTcGVjaWFsSm9pbkluZm8uc2VtaV9yaHNfZXhwcnMuICBUaG9z ZSB3ZXJlIHJlY29yZGVkIHdpdGggd2hhdGV2ZXIgY29sbGF0aW9uCnRoZSBSSFMgZXhwcmVzc2lv biBpdHNlbGYgZXhwb3Nlcywgd2hpY2ggbmVlZCBub3QgYmUgdGhlIGNvbGxhdGlvbiB0aGUgam9p bgpjb21wYXJlcyB3aXRoLiAgTmVpdGhlciBTb3J0R3JvdXBDbGF1c2Ugbm9yIHRoZSBwYXRoa2V5 IG1hY2hpbmVyeSBjYXJyaWVzIGEKY29sbGF0aW9uIG9mIGl0cyBvd24sIHNvIGJvdGggVW5pcXVl LW92ZXItU29ydCBhbmQgSGFzaEFnZ3JlZ2F0ZSB0aGVuIGdyb3VwZWQKYnkgdGhlIHdyb25nIGVx dWFsaXR5OiB2YWx1ZXMgdGhlIGpvaW4gY29uc2lkZXJzIGVxdWFsIHN1cnZpdmVkLCBhbmQgdGhl CmZvbGxvd2luZyBpbm5lciBqb2luIGVtaXR0ZWQgdGhlIG91dGVyIHJvdyBvbmNlIHBlciBzdXJ2 aXZvci4KCldpdGggYSBub24tZGV0ZXJtaW5pc3RpYyBjb2xsYXRpb24gb24gb25lIHNpZGUsICJT RUxFQ1QgY291bnQoKikgRlJPTSB0IFdIRVJFCmMgSU4gKFNFTEVDVCBjMCBGUk9NIHQyKSIgdGhl cmVmb3JlIGNvdW50ZWQgbW9yZSByb3dzIHRoYW4gdGhlIHNhbWUgcHJlZGljYXRlCnJlcG9ydHMg Zm9yIHRoZSByb3dzIG9mIHQuCgpMYWJlbCBlYWNoIFJIUyBleHByZXNzaW9uIHdpdGggdGhlIG9w ZXJhdG9yJ3MgaW5wdXQgY29sbGF0aW9uLCB0aGUgc2FtZQp0cmVhdG1lbnQgcHJvY2Vzc19lcXVp dmFsZW5jZSgpIGdpdmVzIHRvIGVxdWl2YWxlbmNlIGNsYXNzIG1lbWJlcnMuICBFdmVyeQpjb25z dW1lciBvZiBzZW1pX3Joc19leHBycyByZWFkcyB0aGUgY29sbGF0aW9uIG9mZiB0aGUgZXhwcmVz c2lvbiwgc28gdGhpcwpmaXhlcyB0aGUgc29ydC1iYXNlZCBhbmQgaGFzaC1iYXNlZCBwYXRocyB0 b2dldGhlcjsgaW4gdGhlIGJyYW5jaGVzIHdoZXJlCmNyZWF0ZV91bmlxdWVfcGF0aCgpIGFsc28g cGFzc2VzIHRoZXNlIGV4cHJlc3Npb25zIHRvCnJlbGF0aW9uX2hhc191bmlxdWVfaW5kZXhfZm9y KCksIGl0IGxpa2V3aXNlIHN0b3BzIGEgdW5pcXVlIGluZGV4IGJ1aWx0IHdpdGggYQpkaWZmZXJl bnQgY29sbGF0aW9uIGZyb20gYmVpbmcgdGFrZW4gYXMgcHJvb2YgdGhhdCB1bmlxdWUtaWZpY2F0 aW9uIGNhbiBiZQpza2lwcGVkLiAgVGhlIHNhbWUgZ29lcyBmb3IgYSBzdWJxdWVyeSdzIERJU1RJ TkNUIGNvbXB1dGVkIHVuZGVyIGEgZGlmZmVyZW50CmNvbGxhdGlvbiwgc2luY2UgdHJhbnNsYXRl X3N1Yl90bGlzdCgpIHB1bnRzIG9uIHRoZSByZWxhYmVsZWQgZXhwcmVzc2lvbnMuCgpSZXBvcnRl ZC1ieTogU3V5YW5nIFpob25nIDxzeXpob25nMTZAZ21haWwuY29tPgpBdXRob3I6IEFuZHJleSBS YWNoaXRza2l5IDxwbDBoMHlwMUBnbWFpbC5jb20+ClJldmlld2VkLWJ5OiBUZW5kZXIgV2FuZyA8 dG5kcndhbmdAZ21haWwuY29tPgpSZXZpZXdlZC1ieTogUmljaGFyZCBHdW8gPGd1b2ZlbmdsaW51 eEBnbWFpbC5jb20+ClJldmlld2VkLWJ5OiBBbGV4YW5kZXIgS29yb3Rrb3YgPGFla29yb3Rrb3ZA Z21haWwuY29tPgpEaXNjdXNzaW9uOiBodHRwczovL3Bvc3Rnci5lcy9tLzE5NjMzLTY0N2NkNGM3 M2E4NGIwODUlNDBwb3N0Z3Jlc3FsLm9yZwpCYWNrcGF0Y2gtdGhyb3VnaDogMTQKCkJyYW5jaAot LS0tLS0KUkVMXzE0X1NUQUJMRQoKRGV0YWlscwotLS0tLS0tCmh0dHBzOi8vZ2l0LnBvc3RncmVz cWwub3JnL3BnL2NvbW1pdGRpZmYvYjhlMGI0NWFiYjYxZWM0MmRlOWNiNzAyMDQxOTAyZDY5MDYy OWY2ZAoKTW9kaWZpZWQgRmlsZXMKLS0tLS0tLS0tLS0tLS0Kc3JjL2JhY2tlbmQvb3B0aW1pemVy L3BsYW4vaW5pdHNwbGFuLmMgICAgICAgICB8IDExICsrKysrLQpzcmMvdGVzdC9yZWdyZXNzL2V4 cGVjdGVkL2NvbGxhdGUuaWN1LnV0Zjgub3V0IHwgNTQgKysrKysrKysrKysrKysrKysrKysrKysr KysKc3JjL3Rlc3QvcmVncmVzcy9zcWwvY29sbGF0ZS5pY3UudXRmOC5zcWwgICAgICB8IDI3ICsr KysrKysrKysrKysKMyBmaWxlcyBjaGFuZ2VkLCA5MSBpbnNlcnRpb25zKCspLCAxIGRlbGV0aW9u KC0pCgo= --===============6323241571681141520==--