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Wed, 19 Feb 2025 20:09:37 +0000 Content-Type: multipart/mixed; boundary="===============1081198243857472254==" MIME-Version: 1.0 From: Tomas Vondra To: pgsql-committers@lists.postgresql.org Subject: pgsql: Consider BufFiles when adjusting hashjoin parameters X-Auto-Response-Suppress: All Auto-Submitted: auto-generated Message-Id: Date: Wed, 19 Feb 2025 20:09:37 +0000 List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Archived-At: Precedence: bulk --===============1081198243857472254== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Q29uc2lkZXIgQnVmRmlsZXMgd2hlbiBhZGp1c3RpbmcgaGFzaGpvaW4gcGFyYW1ldGVycwoKVW50 aWwgbm93IEV4ZWNDaG9vc2VIYXNoVGFibGVTaXplKCkgY29uc2lkZXJlZCBvbmx5IHRoZSBzaXpl IG9mIHRoZQppbi1tZW1vcnkgaGFzaCB0YWJsZSwgYW5kIGlnbm9yZWQgdGhlIG1lbW9yeSBuZWVk ZWQgZm9yIHRoZSBiYXRjaCBmaWxlcy4KV2hpY2ggY2FuIGJlIGEgc2lnbmlmaWNhbnQgYW1vdW50 LCBiZWNhdXNlIGVhY2ggYmF0Y2ggbmVlZHMgdHdvIEJ1ZkZpbGVzCihlYWNoIHdpdGggYSBCTENL U1ogYnVmZmVyKS4gVGhlIHNhbWUgaXNzdWUgYXBwbGllcyB0byBpbmNyZWFzaW5nIHRoZQpudW1i ZXIgb2YgYmF0Y2hlcyBkdXJpbmcgZXhlY3V0aW9uLgoKSXQncyBhbHNvIHBvc3NpYmxlIHRvIHRy aWdnZXIgYSAiYmF0Y2ggZXhwbG9zaW9uIiwgZS5nLiBkdWUgdG8gZHVwbGljYXRlCnZhbHVlcyBv ciBza2V3LiBXZSd2ZSBzZWVuIHJlcG9ydHMgb2Ygam9pbnMgd2l0aCBodW5kcmVkcyBvZiB0aG91 c2FuZHMKKG9yIGV2ZW4gbWlsbGlvbnMpIG9mIGJhdGNoZXMsIGNvbnN1bWluZyBnaWdhYnl0ZXMg b2YgbWVtb3J5LCB0cmlnZ2VyaW5nCk9PTSBlcnJvcnMuIFRoZXNlIGNhc2VzIG1heSBiZSBmYWly bHkgcmFyZSwgYnV0IGl0J3MgY2xlYXJseSBwb3NzaWJsZSB0bwpoaXQgdGhlbS4KClRoZXNlIGlz c3VlcyBjYW4ndCBiZSBwcmV2ZW50ZWQgZHVyaW5nIHBsYW5uaW5nLiBFdmVuIGlmIHdlIGltcHJv dmUKdGhhdCwgaXQgZG9lcyBub3QgaGVscCB3aXRoIGV4ZWN1dGlvbi10aW1lIGJhdGNoIGV4cGxv c2lvbi4gV2UgY2FuCmhvd2V2ZXIgcmVkdWNlIHRoZSBpbXBhY3QgYW5kIHVzZSBhcyBsaXR0bGUg bWVtb3J5IGFzIHBvc3NpYmxlLgoKVGhpcyBwYXRjaCBpbXByb3ZlcyB0aGUgYmVoYXZpb3IgYnkg YWRqdXN0aW5nIGhvdyB0aGUgbWVtb3J5IGlzIGRpdmlkZWQKYmV0d2VlbiB0aGUgaGFzaCB0YWJs ZSBhbmQgYmF0Y2ggZmlsZXMuIEl0IG1heSBiZSBiZXR0ZXIgdG8gdXNlIGZld2VyCmJhdGNoIGZp bGVzLCBldmVuIGlmIGl0IG1lYW5zIHRoZSBoYXNoIHRhYmxlIHdpbGwgZXhjZWVkIHRoZSBsaW1p dC4KClRoZSBjYXBhY2l0eSBvZiB0aGUgaGFzaCBub2RlIG1heSBiZSBpbmNyZWFzZWQgZWl0aGVy IGJ5IGRvdWJsaW5nIGhlCm51bWJlciBvZiBiYXRjaGVzLCBvciBkb3VibGluZyB0aGUgc2l6ZSBv ZiB0aGUgaW4tbWVtb3J5IGhhc2ggdGFibGUuIFRoZQpvdXRjb21lIGlzIHRoZSBzYW1lLCBidXQg dGhlIG1lbW9yeSB1c2FnZSBtYXkgYmUgdmVyeSBkaWZmZXJlbnQuIEZvciBsb3cKbmJhdGNoIHZh bHVlcyBpdCdzIGJldHRlciB0byBhZGQgYmF0Y2hlcywgZm9yIGhpZ2ggbmJhdGNoIHZhbHVlcyBp dCdzCmJldHRlciB0byBhbGxvdyBhIGxhcmdlciBoYXNoIHRhYmxlLgoKVGhlIHBhdGNoIGNvbnNp ZGVycyBib3RoIG9wdGlvbnMsIGJvdGggZHVyaW5nIHRoZSBpbml0aWFsIHNpemluZyBhbmQKdGhl biBkdXJpbmcgZXhlY3V0aW9uLCB0byBtaW5pbWl6ZSBob3cgbXVjaCB0aGUgbGltaXQgZ2V0cyBl eGNlZWRlZC4KCkl0IG1pZ2h0IHNlZW0gdGhpcyBwYXRjaCBpcyByZWxheGluZyB0aGUgbWVtb3J5 IGxpbWl0IC0gYWxsb3dpbmcgaXQgdG8KYmUgZXhjZWVkZWQuIEJ1dCB0aGF0J3Mgbm90IHJlYWxs eSB0aGUgY2FzZS4gSXQgaGFzIGFsd2F5cyBiZWVuIGxpa2UKdGhhdCwgZXhjZXB0IHRoZSBtZW1v cnkgdXNlZCBieSBiYXRjaGVzIHdhcyBpZ25vcmVkLgoKQWxsb3dpbmcgdGhlIGhhc2ggdGFibGUg dG8gZ3JvdyBtYXkgYWxzbyBwcmV2ZW50IHRoZSBiYXRjaCBleHBsb3Npb24uCklmIHRoZXJlJ3Mg YSBsYXJnZSBiYXRjaCB0aGF0IGNhbid0IGJlIHNwbGl0IChkdWUgdG8gaGFzaCBjb2xsaXNpb25z IG9yCmR1cGxpY2F0ZSB2YWx1ZXMpLCBhdCBzb21lIHBvaW50IHRoZSBtZW1vcnkgbGltaXQgd2ls bCBpbmNyZWFzZSBlbm91Z2gKZm9yIHRoZSBiYXRjaCB0byBmaXQgaW50byB0aGUgaGFzaCB0YWJs ZS4KClRoaXMgcGF0Y2ggd2FzIGluIHRoZSB3b3JrcyBmb3IgYSBsb25nIHRpbWUuIFRoZSBlYXJs eSB2ZXJzaW9ucyB3ZXJlCnBvc3RlZCBpbiAyMDE5LCBhbmQgcmV2aXZlZCBldmVyeSB5ZWFyIG9y IHR3byB3aGVuIHdlIGhhcHBlbmVkIHRvIGdldAp0aGUgbmV4dCByZXBvcnQgb2YgT09NIGR1ZSB0 byBhIGhhc2hqb2luIGJhdGNoIGV4cGxvc2lvbi4gRWFjaCBvZiB0aG9zZQpwYXRjaCB2ZXJzaW9u cyB3ZXJlIHJldmlld2VkIGJ5IGEgY291cGxlIHBlb3BsZS4gSSdtIG1lbnRpb25pbmcgb25seQpN ZWxhbmllIFBsYWdlbWFuIGFuZCBSb2JlcnQgSGFhcywgYmVjYXVzZSB0aGV5IHJldmlld2VkIHRo ZSBsYXN0CnZlcnNpb24sIGFuZCB0aGUgb2xkZXIgcGF0Y2hlcyBhcmUgdmVyeSBkaWZmZXJlbnQu CgpSZXZpZXdlZC1ieTogTWVsYW5pZSBQbGFnZW1hbiwgUm9iZXJ0IEhhYXMKRGlzY3Vzc2lvbjog aHR0cHM6Ly9wb3N0Z3IuZXMvbS83YmVkNmMwOC03MmEwLTRhYjktYTc5Yy1lMDFmY2RkMDk0MGZA dm9uZHJhLm1lCkRpc2N1c3Npb246IGh0dHBzOi8vcG9zdGdyLmVzL20vMjAxOTA1MDQwMDM0MTQu YnVsY2JuZ2Uzcmh3aGNzaCU0MGRldmVsb3BtZW50CkRpc2N1c3Npb246IGh0dHBzOi8vcG9zdGdy LmVzL20vMjAxOTA0MjgxNDE5MDEuNWRzYmdlMmthM3J4bXBrNiU0MGRldmVsb3BtZW50CgpCcmFu Y2gKLS0tLS0tCm1hc3RlcgoKRGV0YWlscwotLS0tLS0tCmh0dHBzOi8vZ2l0LnBvc3RncmVzcWwu b3JnL3BnL2NvbW1pdGRpZmYvYTFiNGYyODliZWVjMTk1MzRlNWUzNGUxYTk2MmM1ODI4YjMwNmNl MgoKTW9kaWZpZWQgRmlsZXMKLS0tLS0tLS0tLS0tLS0Kc3JjL2JhY2tlbmQvZXhlY3V0b3Ivbm9k ZUhhc2guYyB8IDEyOSArKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrCjEg ZmlsZSBjaGFuZ2VkLCAxMjkgaW5zZXJ0aW9ucygrKQoK --===============1081198243857472254==--