[GitHub] [shardingsphere] Roronoa-Zoro commented on issue #6256: query all tables where sql contains a sharding column and non sharding column

[GitBox <gi...@apache.org>]

Roronoa-Zoro commented on issue #6256:
URL: https://github.com/apache/shardingsphere/issues/6256#issuecomment-654002460


   > show you complete config,please
   
   spring.shardingsphere.datasource.names=ds
   
   spring.shardingsphere.sharding.tables.t_demo.logicTable=t_demo
   spring.shardingsphere.sharding.tables.t_demo.actual-data-nodes=ds.t_demo$->{0..31}
   spring.shardingsphere.sharding.tables.t_demo.table-strategy.standard.sharding-column=demo_key
   spring.shardingsphere.sharding.tables.t_demo.table-strategy.standard.preciseAlgorithmClassName=xx.DemoTableShardingAlgorithm
   
   DemoTableShardingAlgorithm {
   private static final ConcurrentMap<String, List<String>> tables = Maps.newConcurrentMap();
       private static final String TABLE_NAME = "demo";
   
       @Override
       public String doSharding(Collection<String> availableTargetNames, PreciseShardingValue<String> shardingValue) {
           String shortKey = shardingValue.getValue();
           int hashCode = Math.abs(shortKey.hashCode());
           int mode = hashCode % availableTargetNames.size();
           List<String> tableList = tables.computeIfAbsent(TABLE_NAME, k -> Lists.newArrayList(availableTargetNames));
           return tableList.get(mode);
       }
   } 


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