hi:

UTF-8 coding has met most of the requirements. 


I think you should consider why it leads to: index column size too large




Instead of focusing on changing the encoding of the database


Normally, the database index should not be large






--------------------------------------
BoYi ZhangE-mail : [email protected]
On 09/29/2020 20:02,CalvinKirs<[email protected]> wrote:


I think we don’t need utf8-mb4
Best  wishes!
CalvinKirs


On 09/29/2020 16:09,[email protected]<[email protected]> wrote:
Hi folks,
Welcome to discuss.I introduce the background and what should we discuss 
first,If here is something didn't described clearly,please feel free to tell me.
Backgound
Thougth dolphinscheduler uses the postgresql,but provided the mysql construct 
sql to make it easier to use mysql.
The table of quartz used the charset `utf8mb4` and the other tables used the 
charset `utf8`.
Here is a pr[1] suggest to use utf8.For the reason [2] below.

What should we discuss?
What should we discussed is that `Which charset should we choose in mysql`?
Welcome everyone discuss,of course you can give other resolve method.

1.https://github.com/apache/incubator-dolphinscheduler/pull/3689
2.When executing MySQL table creation statement, it will report that the index 
length is not enough.
this will happen: Index column size too large. The maximum column size is 767 
bytes.




Thanks,
Gang Li

DolphinScheduler(Incubator) PPMC
Gang Li 李岗

[email protected]

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