Investigating Why Aurora MySQL Returns “Empty set†in Response to SELECT, Even Though Corresponding Records Exist
Investigating Why Aurora MySQL Returns “Empty set†in Response to SELECT, Even Though Corresponding Records Exist Hello, p2sk from the KINTO Technologies DBRE team here. In the DBRE (Database Reliability Engineering) team, our cross-functional efforts are dedicated to addressing challenges such as resolving database-related issues and developing platforms that effectively balance governance with a
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2023.01.11 Amazon Aurora MySQLã§ãƒ†ãƒ¼ãƒ–ルå†æ§‹ç¯‰ã‚’ä¼´ã†æ“作をã™ã‚‹ã¨ãƒ†ãƒ¼ãƒ–ルãŒè¦‹ãˆãªããªã‚‹ã£ã½ã„ 追記：ã“ã®è¨˜äº‹ã§ç´¹ä»‹ã—ã¦ã„ã‚‹ç¾è±¡ã¯ã€æ–°ã—ã„ãƒãƒ¼ã‚¸ãƒ§ãƒ³ã®Aurora MySQLã§ã¯ä¿®æ£ã•ã‚Œã¦ã„るよã†ã§ã™ã€‚本記事ã§ã¯3.02.2を対象ã«ã—ã¦ã„る点ã«ã”注æ„ãã ã•ã„。 Amazon Aurora MySQLã§ãƒ†ãƒ¼ãƒ–ルã®å†æ§‹ç¯‰ã‚’ä¼´ã†æ“作を行ã†ã¨ï¼ŒReaderインスタンスã§çž¬é–“çš„ã«å¯¾è±¡ã®ãƒ†ãƒ¼ãƒ–ルãŒè¦‹ãˆãªããªã‚‹å ´åˆãŒã‚ã‚‹ã®ã§ï¼Œã‚ªãƒšãƒ¬ãƒ¼ã‚·ãƒ§ãƒ³ã®å®Ÿè¡Œã‚¿ã‚¤ãƒŸãƒ³ã‚°ã«æ°—ã‚’ã‘ã¾ã—ょã†ï¼Œã¨ã„ã†ãŠè©±ã§ã™ã€‚å†æ§‹ç¯‰ã‚’ä¼´ã†æ“作ã«ã¯ï¼Œä¸€éƒ¨ã®ALTER TABLEã‚„OPTIMIZE TABLEãŒå«ã¾ã‚Œã¾ã™ã€‚ ã“ã‚“ã«ã¡ã¯ï¼ŒS.T.ã§ã™ã€‚Amazon Aurora MySQLã§å°‘ã—æ°—ã«ãªã‚‹ç¾è±¡ã‚’見ã‹ã‘ãŸã®ã§ç´¹ä»‹ã—ã¾ã™ã€‚ã“ã®ç¾è±¡ã‚’知ã£ã¦ã„ã‚Œã°å›žé¿ã§ãã‚‹ã®ã§ï¼Œã‚¯ãƒªãƒ†ã‚£ã‚«ãƒ«ãªå½±éŸ¿ãŒã‚ã‚‹ã¨ã„ã†ã“ã¨ã§ã¯ãªã„ã§ã™ãŒï¼Œ
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