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Why InnoDb dont support auto_increment in clustered primary key

原文 2016-05-29 05:14:43 9 1 mysql/ database

why innodb, doesn't support this option, and what to do instead. if i have a invoice and want sorted invoice detail entry number, how to get it without clustered primary key autoincrement.

1 answers

Because it would require communication between nodes every time when you are inserting a new record, and that is expensive. You can use random values as IDs instead. Eg: https://en.wikipedia.org/wiki/Universally_unique_identifier#Version_4_.28random.29 + http://dev.mysql.com/doc/refman/5.7/en/miscellaneous-functions.html#function_uuid

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Why InnoDb dont support auto_increment in clustered primary key

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1 answers

solution1 0 2016-05-29 06:19:21

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0 2016-05-29 06:19:21