Index Condition Pushdown
That way, the value Handler_icp_attempts - Handler_icp_match shows the number records that the server did not have to read because of Index Condition Pushdown. Limitations Currently, virtual column indexes can't be used for index condition pushdown. Instead, a generated column can be made declared STORED. Then, index condition pushdown will be possible. Index Condition Pushdown can't be used with
MySQl 5.6æ–°æ©Ÿèƒ½è§£èª¬ï¼ ç¬¬ä¸€å›ž ä¸å›½åœ°æ–¹DB勉強会
1. MySQL 5.6MySQL 5.6 新機能解説新機能解説 奥野 幹也 @nippondanji mikiya (dot) okuno (at) gmail (dot) com ï¼ ç¬¬ä¸€å›žã€€ä¸å›½åœ°æ–¹ DB 勉強会 3. 自己紹介 â— MySQL サãƒãƒ¼ãƒˆã‚¨ãƒ³ã‚¸ãƒ‹ã‚¢ – 2000 å¹´ã«ã‚µãƒ³ãƒ»ãƒžã‚¤ã‚¯ãƒã‚·ã‚¹ãƒ†ãƒ ズ入社 ◠主ã«ãƒãƒ¼ãƒ‰ã‚¦ã‚§ã‚¢ã®ã‚µãƒãƒ¼ãƒˆã‚’担当 – 2007 å¹´ã« MySQL KK ã¸è»¢è· ◠気付ãã¨ã¾ãŸã‚µãƒ³ãƒ»ãƒžã‚¤ã‚¯ãƒã‚·ã‚¹ãƒ†ãƒ ズã«ãƒ»ãƒ»ãƒ» – ç¾åœ¨ã¯æ—¥æœ¬ã‚ªãƒ©ã‚¯ãƒ«ã«åœ¨å¸ã€‚ – サãƒãƒ¼ãƒˆä¸€ç‹ 13 å¹´ ◠日々ã®ã—ã”㨠– MySQL トラブルシューティング全般 – Q&A å›žç” ãªã©
MySQL5.6é–¢é€£æƒ…å ±ã¾ã¨ã‚
5. ãƒã‚°æƒ…å ±ãªã© ï‚— GTID有効ã§ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ãŒé€”切れるã¨ãƒ‡ãƒ¼ã‚¿æ¶ˆå¤±ã™ã‚‹ ï‚— InnoDBmemcacheAPIã®ãƒ¡ãƒ¢ãƒªãƒªãƒ¼ã‚¯ï¼ˆ #68530 ） ï‚— GRANT文発行時ã€æ§‹æ–‡ã«ç‰¹å®šã®è¨˜è¼‰ãƒŸã‚¹ãŒã‚ã‚‹ã¨ãƒ¬ãƒ—リ ケーションãŒåœæ¢ã™ã‚‹ï¼ˆ # 68892） ï‚— マッãƒã—ãªã„パーティションãŒãŸãã•ã‚“ã‚ã‚‹å ´åˆã€äºˆæƒ³ã‚¹ ã‚ャン件数をéŽå‰°ã«ä½Žã見ç©ã‚‚ã£ã¦ã—ã¾ã†ä¸å…·åˆ ※上記ã¯å‹‰å¼·ä¼šã§è¦‹ã‹ã‘ãŸæƒ…å ±ãªã©ã§ã™ 僕らã®MySQL5.6移行記(ä»®) http://www.slideshare.net/conmame/mysql56-27565355 7. é‹ç”¨æ–¹æ³•ã®å¤‰åŒ–ã«ã¤ã„㦠 GTIDãŒæœ‰åŠ¹ã ã¨Slaveã§ã‚¯ã‚¨ãƒªã‚’スã‚ップã§ããªããªã£ã¦ç¢ºèª ï‚— ï‚— ï‚— ï‚— ï‚— ï‚— ã—ã¦ç©ºã‚³ãƒŸãƒƒãƒˆã—ãªã„ã¨ã„ã‘ãªããªã£ãŸï¼ˆå‰²ã¨æ‰‹é–“） MySQL Utilityã¨ã„ã†pythonツールãŒä¾¿åˆ©ãㆠãƒãƒƒãƒ•ã‚¡ãƒ—ールã®ãƒ€ãƒ³ãƒ—ã¨ãƒªã‚¹ãƒˆ
MySQL :: Developer Zone
"The Documents contained within this site may include statements about Oracle's product development plans. Many factors can materially affect Oracle's product development plans and the nature and timing of future product releases. Accordingly, this Information is provided to you solely for information only, is not a commitment to deliver any material, code, or functionality, and should not be reli
Sysbench OLTP: MySQL-5.6 vs. MariaDB-10.0 - MariaDB.org
Oracle has now launched MySQL-5.6.10-GA, so it is time to come up with some new benchmark results. The test candidates in this benchmark run are MySQL-5.5.29 MySQL-5.6.10 MariaDB-5.5.28a MariaDB-10.0.1 The 5.5 versions are in because I wanted to check for any regressions. In the past we have often seen performance regressions in newer versions which were caused by new features. This time the bench
Is MySQL 5.6 slower than MySQL 5.5?
There have been a number reports/benchmarks showing MySQL 5.6 to be slower than MySQL 5.5 on variety of workloads. There are many possible reasons and I believe we will learn about many of them in the next few weeks and months as MySQL 5.6 is starting to get production battle-tested and there is inflow of real world production performance data hitting MySQL Support Team at Oracle. For a number of
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MySQL 5.6æ£å¼ç‰ˆãŒå…¬é–‹ã€‚オプティマイザやInnoDBã®å‘上ã§ã•ã‚‰ã«é«˜é€Ÿã€‚クラッシュセーフãªãƒ¬ãƒ—リケーションãªã© 米オラクルã¯ã€MySQL 5.6ã®æ£å¼ç‰ˆãŒå…¬é–‹ã•ã‚ŒãŸã“ã¨ã‚’発表ã—ã¾ã—ãŸã€‚MySQLã¯ã‚ªãƒ¼ãƒ—ンソースã®ãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹ã§ã€ç„¡æ–™ã§åˆ©ç”¨å¯èƒ½ãªMySQL Community Server 5.6.10も公開ã•ã‚Œã¦ã„ã¾ã™ã€‚ MySQL 5.6ã®ãŠã‚‚ãªæ–°æ©Ÿèƒ½ã¯ãƒ—レスリリースやドã‚ュメント「What's New in MySQL 5.6ã€ã§ç´¹ä»‹ã•ã‚Œã¦ã„ã¾ã™ã€‚本記事ã§ã¯ã“れらã¨ã€ã‚ªãƒ¼ãƒ—ンソースカンファレンス 2012 Tokyoã§å…¬é–‹ã•ã‚ŒãŸæ—¥æœ¬ã‚ªãƒ©ã‚¯ãƒ« å±±å´Žç”±ç« æ°ã®è³‡æ–™ã€Œåœ§å€’çš„ãªé€²åŒ–を続ã‘ã‚‹MySQLã®æœ€æ–°æ©Ÿèƒ½ã€ï¼ˆPDF）ã®ä¸€éƒ¨ã‚’引用ã—ã¤ã¤ä¸»ãªæ©Ÿèƒ½ã‚’紹介ã—ã¾ã™ã€‚ オプティマイザã€InnoDBã€ãƒ¬ãƒ—リケーション MySQL 5.6ã§ã¯ã€SQLを解æžã—ã¦å®Ÿè¡Œã™ã‚‹ã‚ªãƒ—ティマイザã®æ”¹å–„ã¨ã€ãƒ‡ãƒ¼ã‚¿ãƒ™
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