[GitHub] [incubator-shardingsphere] zhuyaoming edited a comment on issue #3644: shardingvalue cannot Null ?

2019-12-05 Thread GitBox 
zhuyaoming edited a comment on issue #3644: shardingvalue cannot Null ?
URL: 
https://github.com/apache/incubator-shardingsphere/issues/3644#issuecomment-562053413
 
 
   > Maybe we do not need talk about business logic here, we just make sure if 
we permit `null` for sharding value, which data node should the data inserted 
into?
   
   other sharding column(tenant_id,customer_id) can known data node.


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[GitHub] [incubator-shardingsphere] zhuyaoming edited a comment on issue #3644: shardingvalue cannot Null ?

2019-12-04 Thread GitBox 
zhuyaoming edited a comment on issue #3644: shardingvalue cannot Null ?
URL: 
https://github.com/apache/incubator-shardingsphere/issues/3644#issuecomment-561604376
 
 
   > Which data node should the data inserted into?
   
   i use ComplexShardingStrategy   , tenant_id and consumer_id can known data,  
   and  tenant_id + consumer_id correspond only id_number.  i save Map when 
insert have id_number.
   
   so i use tenant_id,consumer_id,id_number as sharding column, 
   if  where tenant_id=1 and consumer_id=*   sharding is ok
   
   if where id_number=*  
   
   first : find by map get tenant_id and consumer_id  second: cal databases
   
   that my questions.


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