1.x | 2.0 |
|
举例:两个人同时提交相同用户名的注册请求,确认not exist 后,同时提交注册请求。这种情况因为是相同的rowkey(用户名),所以cassandra会将后后提交的人信息会覆盖前者。cassandra通过paxos解决该问题。 |
BEGIN BATCH UPDATE .... INSERT ... APPLY BATCH; |
# 轻量级事务通过IF子句实现 INSERT INTO USERS (login, email, name, login_count) |
>> 详细 | >> 详细 |
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