johnny2002 opened a new issue #7471:
URL: https://github.com/apache/shardingsphere/issues/7471
Currently, shardingsphere configuration file need to repeat all tables'
config, event they are using same sharding rule.
e.g.
```properties
spring.shardingsphere.sharding.tables.table1.actual-data-nodes=ds$->{0..1}.tab_user$->{0..1}
spring.shardingsphere.sharding.tables.table1.table-strategy.inline.sharding-column=id
spring.shardingsphere.sharding.tables.table1.table-strategy.inline.algorithm-expression=tab_user$->{id
% 2}
spring.shardingsphere.sharding.tables.table2.actual-data-nodes=ds$->{0..1}.tab_user$->{0..1}
spring.shardingsphere.sharding.tables.table2.table-strategy.inline.sharding-column=id
spring.shardingsphere.sharding.tables.table2.table-strategy.inline.algorithm-expression=tab_user$->{id
% 2}
```
in the example, table1 and table2 have exactly same sharding rule, I suggest
to combine them into one group, like:
```properties
spring.shardingsphere.sharding.groups.group1.tables=table1,table2
spring.shardingsphere.sharding.groups.group1.actual-data-nodes=ds$->{0..1}.tab_user$->{0..1}
spring.shardingsphere.sharding.tables.group1.table-strategy.inline.sharding-column=id
spring.shardingsphere.sharding.tables.group1.table-strategy.inline.algorithm-expression=tab_user$->{id
% 2}
```
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