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Posted to notifications@shardingsphere.apache.org by "zhouyao1994 (via GitHub)" <gi...@apache.org> on 2023/03/24 12:08:59 UTC
[GitHub] [shardingsphere] zhouyao1994 opened a new issue, #24814: how to config actualDataNodes to express db1.tb1, db2.tb2 ,db3.tb3, db4.tb4 db5.tb5 db6.tb6
zhouyao1994 opened a new issue, #24814:
URL: https://github.com/apache/shardingsphere/issues/24814
## Question
i want config a list wiht [db0.db0 db1.tb1, db2.tb2] but when i set actualDataNodes to
`db${0,2}.tb${0,2}`
it genarate a list with
[ "db0.tb0", "db0.tb1", "db0.tb2", "db1.tb0", "db1.tb1", "db1.tb2", "db2.tb0", "db2.tb1", "db2.tb2"]
how can i genarate to db1.tb1, db2.tb2 ,db3.tb3, db4.tb4 db5.tb5 db6.tb6?
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[GitHub] [shardingsphere] zhouyao1994 commented on issue #24814: how to config actualDataNodes to express db1.tb1, db2.tb2 ,db3.tb3, db4.tb4 db5.tb5 db6.tb6
Posted by "zhouyao1994 (via GitHub)" <gi...@apache.org>.
zhouyao1994 commented on issue #24814:
URL: https://github.com/apache/shardingsphere/issues/24814#issuecomment-1543403025
>
ok,thx~
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[GitHub] [shardingsphere] RaigorJiang commented on issue #24814: how to config actualDataNodes to express db1.tb1, db2.tb2 ,db3.tb3, db4.tb4 db5.tb5 db6.tb6
Posted by "RaigorJiang (via GitHub)" <gi...@apache.org>.
RaigorJiang commented on issue #24814:
URL: https://github.com/apache/shardingsphere/issues/24814#issuecomment-1483833043
I think this needs to be enumerated, or you can check the syntax documentation of groovy
(Expressions are parsed by groovy)
Ref: https://shardingsphere.apache.org/document/current/en/features/sharding/concept/#row-value-expressions
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[GitHub] [shardingsphere] zhouyao1994 closed issue #24814: how to config actualDataNodes to express db1.tb1, db2.tb2 ,db3.tb3, db4.tb4 db5.tb5 db6.tb6
Posted by "zhouyao1994 (via GitHub)" <gi...@apache.org>.
zhouyao1994 closed issue #24814: how to config actualDataNodes to express db1.tb1, db2.tb2 ,db3.tb3, db4.tb4 db5.tb5 db6.tb6
URL: https://github.com/apache/shardingsphere/issues/24814
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[GitHub] [shardingsphere] RaigorJiang commented on issue #24814: how to config actualDataNodes to express db1.tb1, db2.tb2 ,db3.tb3, db4.tb4 db5.tb5 db6.tb6
Posted by "RaigorJiang (via GitHub)" <gi...@apache.org>.
RaigorJiang commented on issue #24814:
URL: https://github.com/apache/shardingsphere/issues/24814#issuecomment-1507867816
That's true, if you don't want to enumerate, can you use the same table name in each data source?
`db${0..6}.tb`
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[GitHub] [shardingsphere] zhouyao1994 commented on issue #24814: how to config actualDataNodes to express db1.tb1, db2.tb2 ,db3.tb3, db4.tb4 db5.tb5 db6.tb6
Posted by "zhouyao1994 (via GitHub)" <gi...@apache.org>.
zhouyao1994 commented on issue #24814:
URL: https://github.com/apache/shardingsphere/issues/24814#issuecomment-1506269720
> I think this needs to be enumerated, or you can check the syntax documentation of groovy (Expressions are parsed by groovy)
>
> Ref: https://shardingsphere.apache.org/document/current/en/features/sharding/concept/#row-value-expressions
i searched the groovy documentation，but not get more elegent expression
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[GitHub] [shardingsphere] zhouyao1994 commented on issue #24814: how to config actualDataNodes to express db1.tb1, db2.tb2 ,db3.tb3, db4.tb4 db5.tb5 db6.tb6
Posted by "zhouyao1994 (via GitHub)" <gi...@apache.org>.
zhouyao1994 commented on issue #24814:
URL: https://github.com/apache/shardingsphere/issues/24814#issuecomment-1508916848
> That's true, if you don't want to enumerate, can you use the same table name in each data source? `db${0..6}.tb`
actually ，In some scenarios, I would like the programmers to explicitly specify the table name to avoid any mistakes in writing the database.
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[GitHub] [shardingsphere] RaigorJiang commented on issue #24814: how to config actualDataNodes to express db1.tb1, db2.tb2 ,db3.tb3, db4.tb4 db5.tb5 db6.tb6
Posted by "RaigorJiang (via GitHub)" <gi...@apache.org>.
RaigorJiang commented on issue #24814:
URL: https://github.com/apache/shardingsphere/issues/24814#issuecomment-1509859085
I understand, but it's a pity that there is no better way at present.
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