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Mysql Hint 学习

Index Hint 官网说明 语法说明 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 tbl_name [[AS] alias] [index_hint_list] index_hint_list: index_hint [index_hint] ... index_hint: USE { INDEX|KEY} [FOR { JOIN|ORDER BY|GROUP BY}] ([index_list]) | IGNORE { INDEX|KEY} [FOR { JOIN|ORDER BY|GROUP BY}] (index_list) | FORCE { INDEX|KEY} [FOR { JOIN|ORDER BY|GROUP BY}] (index_list) index_list:
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