From: Konstantin Osipov <kostja@tarantool.org>
To: Kirill Shcherbatov <kshcherbatov@tarantool.org>
Cc: tarantool-patches@freelists.org, korablev@tarantool.org
Subject: [tarantool-patches] Re: [PATCH v2 02/12] sql: get rid of LIKELY, UNLIKELY and LIKEHOOD
Date: Wed, 10 Jul 2019 22:02:22 +0300 [thread overview]
Message-ID: <20190710190222.GD5619@atlas> (raw)
In-Reply-To: <3f721bb190812977a76a740da4a178436f24df99.1562756438.git.kshcherbatov@tarantool.org>
* Kirill Shcherbatov <kshcherbatov@tarantool.org> [19/07/10 14:02]:
> Got rid of LIKELY, UNLIKELY and LIKEHOOD builtins because they
> are not a part of the Standard and make source code more
> complicated.
Ugh, I don't mind removing them, but for a non-reason?
There exist for a reason, especially in absence of statistics,
they allow the optimizer to guess the amount of rows a WHERE
clause returns.
Why did you get angry at them?
--
Konstantin Osipov, Moscow, Russia
next prev parent reply other threads:[~2019-07-10 19:02 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-10 11:00 [tarantool-patches] [PATCH v2 00/12] sql: uniform SQL and Lua functions subsystem Kirill Shcherbatov
2019-07-10 11:00 ` [tarantool-patches] [PATCH v2 01/12] sql: get rid of SOUNDEX, MATCH Kirill Shcherbatov
2019-07-10 18:45 ` [tarantool-patches] " Konstantin Osipov
2019-07-12 8:44 ` Kirill Yukhin
2019-07-10 11:00 ` [tarantool-patches] [PATCH v2 10/12] sql: refactor builtins signatures with port Kirill Shcherbatov
2019-07-10 18:47 ` [tarantool-patches] " Konstantin Osipov
2019-07-11 7:33 ` Kirill Shcherbatov
2019-07-10 11:00 ` [tarantool-patches] [PATCH v2 11/12] box: use own vtab per each function object Kirill Shcherbatov
2019-07-10 11:01 ` [tarantool-patches] [PATCH v2 12/12] sql: use schema's func hash instead of FuncDef hash Kirill Shcherbatov
2019-07-10 20:22 ` [tarantool-patches] " Konstantin Osipov
2019-07-10 11:01 ` [tarantool-patches] [PATCH v2 02/12] sql: get rid of LIKELY, UNLIKELY and LIKEHOOD Kirill Shcherbatov
2019-07-10 19:02 ` Konstantin Osipov [this message]
2019-07-11 7:38 ` [tarantool-patches] " Kirill Shcherbatov
2019-07-10 11:01 ` [tarantool-patches] [PATCH v2 03/12] sql: put analyze helpers to FuncDef cache Kirill Shcherbatov
2019-07-10 19:04 ` [tarantool-patches] " Konstantin Osipov
2019-07-12 8:47 ` Kirill Yukhin
2019-07-10 11:01 ` [tarantool-patches] [PATCH v2 04/12] sql: rework LIKE case-insensitive mode Kirill Shcherbatov
2019-07-10 19:09 ` [tarantool-patches] " Konstantin Osipov
2019-07-10 11:01 ` [tarantool-patches] [PATCH v2 05/12] sql: replace bool is_derived_coll marker with flag Kirill Shcherbatov
2019-07-10 19:10 ` [tarantool-patches] " Konstantin Osipov
2019-07-12 8:48 ` Kirill Yukhin
2019-07-10 11:01 ` [tarantool-patches] [PATCH v2 06/12] sql: remove SQL_PreferBuiltin flag Kirill Shcherbatov
2019-07-10 19:11 ` [tarantool-patches] " Konstantin Osipov
2019-07-10 11:01 ` [tarantool-patches] [PATCH v2 07/12] sql: move LIKE UConverter object to collation library Kirill Shcherbatov
2019-07-12 8:49 ` [tarantool-patches] " Kirill Yukhin
2019-07-10 11:01 ` [tarantool-patches] [PATCH v2 08/12] sql: rfc for SQL and Lua functions Kirill Shcherbatov
2019-07-10 19:17 ` [tarantool-patches] " Konstantin Osipov
2019-07-10 19:18 ` Konstantin Osipov
2019-07-11 7:40 ` Kirill Shcherbatov
2019-07-11 13:59 ` Kirill Yukhin
2019-07-10 11:01 ` [tarantool-patches] [PATCH v2 09/12] box: introduce Lua persistent functions Kirill Shcherbatov
2019-07-10 19:26 ` [tarantool-patches] " Konstantin Osipov
2019-07-12 21:49 ` Konstantin Osipov
2019-07-13 13:55 ` Kirill Yukhin
2019-07-13 14:17 ` Kirill Yukhin
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