jmbkeyes commented on issue #1782: how to config the datasource if I just need 
shard one table in one database?
URL: 
https://github.com/apache/incubator-shardingsphere/issues/1782#issuecomment-455952181
 
 
   if there's only one same datasouce for both shard and not-shard, all sql 
will execute in the shard connection.  
   And non-shard table sql will also show sharding log as 
below[group_booking_instance is non-shard table].
   2019-01-21 13:20:00 INFO  ShardingSphere-SQL:71 - Rule Type: sharding
   2019-01-21 13:20:00 INFO  ShardingSphere-SQL:71 - Logic SQL: select gs.* 
from group_booking_instance gs where gs.endDate in(?, ?) and gs.status = 1 and 
gs.endTs<now() limit ?
   2019-01-21 13:20:00 INFO  ShardingSphere-SQL:71 - SQLStatement: 
SelectStatement(super=DQLStatement(super=io.shardingsphere.core.parsing.parser.sql.dql.select.SelectStatement@36aca72e),
 containStar=true, firstSelectItemStartPosition=7, selectListLastPosition=12, 
groupByLastPosition=0, items=[StarSelectItem(owner=Optional.of(gs))], 
groupByItems=[], orderByItems=[], limit=Limit(offset=null, 
rowCount=LimitValue(value=100, index=2, boundOpened=false)), 
subQueryStatement=null, subQueryStatements=[], subQueryConditions=[])
   2019-01-21 13:20:00 INFO  ShardingSphere-SQL:71 - Actual SQL: ds0 ::: select 
gs.* from group_booking_instance gs where gs.endDate in(?, ?) and gs.status = 1 
and gs.endTs<now() limit ? ::: [[20190120, 20190121, 100]]
   

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