chenshao6311 opened a new issue #1763: The correct result cannot be found when the binding table is associated with the query URL: https://github.com/apache/incubator-shardingsphere/issues/1763 ## Bug Report **For English only**, other languages will not accept. Before report a bug, make sure you have: - Searched open and closed [GitHub issues](https://github.com/sharding-sphere/sharding-sphere/issues). - Read documentation: [ShardingSphere Doc](http://shardingsphere.io/document/current/en/overview/). Please pay attention on issues you submitted, because we maybe need more details. If no response **more than 7 days** and we cannot reproduce it on current information, we will **close it**. Please answer these questions before submitting your issue. Thanks! ### Which version of ShardingSphere did you use? 3.1.0 ### Which project did you use? Sharding-JDBC or Sharding-Proxy? Sharding-JDBC ### Expected behavior String sql = "SELECT i.* FROM t_order o, t_order_item i WHERE o.order_id = i.order_id and o.order_id = 292325090350071808"; ### Actual behavior can find result,but no result return ### Reason analyze (If you can) When the queries are associated with two bound tables, I don't understand why the corresponding dataNode can be found through the main table, then the index can be found through the dataNode, and finally the dataNode of another table can be determined by the index. As long as the order of dataNodes I configure is different, the results of the association query are incorrect. ### Steps to reproduce the behavior, such as: SQL to execute, sharding rule configuration, when exception occur etc. private static TableRuleConfiguration getOrderItemTableRuleConfiguration() { TableRuleConfiguration result = new TableRuleConfiguration(); result.setLogicTable("t_order_item"); result.setActualDataNodes("demo_ds_0.t_order_item_1,demo_ds_0.t_order_item_0,demo_ds_1.t_order_item_1,demo_ds_1.t_order_item_0"); //result.setActualDataNodes("demo_ds_${0..1}.t_order_item_${[0, 1]}"); return result; } private static TableRuleConfiguration getOrderTableRuleConfiguration() { TableRuleConfiguration result = new TableRuleConfiguration(); result.setLogicTable("t_order"); result.setActualDataNodes("demo_ds_${0..1}.t_order_${[0, 1]}"); result.setKeyGeneratorColumnName("order_id"); return result; } shardingRuleConfig.getBindingTableGroups().add("t_order, t_order_item"); shardingRuleConfig.setDefaultDatabaseShardingStrategyConfig(new InlineShardingStrategyConfiguration("user_id", "demo_ds_${user_id % 2}")); shardingRuleConfig.setDefaultTableShardingStrategyConfig(new StandardShardingStrategyConfiguration("order_id", new PreciseModuloShardingTableAlgorithm())); ### Example codes for reproduce this issue (such as a github link). ###PS When the queries are associated with two bound tables, I don't understand why the corresponding dataNode can be found through the main table, then the index can be found through the dataNode, and finally the dataNode of another table can be determined by the index. As long as the order of dataNodes I configure is different, the results of the association query are incorrect. For example: My configuration: private static TableRuleConfiguration getOrderItemTableRuleConfiguration() { TableRuleConfiguration result = new TableRuleConfiguration(); result.setLogicTable("t_order_item"); result.setActualDataNodes("demo_ds_0.t_order_item_1,demo_ds_0.t_order_item_0,demo_ds_1.t_order_item_1,demo_ds_1.t_order_item_0"); //result.setActualDataNodes("demo_ds_${0..1}.t_order_item_${[0, 1]}"); return result; } private static TableRuleConfiguration getOrderTableRuleConfiguration() { TableRuleConfiguration result = new TableRuleConfiguration(); result.setLogicTable("t_order"); result.setActualDataNodes("demo_ds_${0..1}.t_order_${[0, 1]}"); result.setKeyGeneratorColumnName("order_id"); return result; } shardingRuleConfig.getBindingTableGroups().add("t_order, t_order_item"); shardingRuleConfig.setDefaultDatabaseShardingStrategyConfig(new InlineShardingStrategyConfiguration("user_id", "demo_ds_${user_id % 2}")); shardingRuleConfig.setDefaultTableShardingStrategyConfig(new StandardShardingStrategyConfiguration("order_id", new PreciseModuloShardingTableAlgorithm())); If the data is inserted first and then the order_id is used as the query condition for the association query, the correct result will not be obtained. By Finding Statements : String sql = "SELECT i.* FROM t_order o, t_order_item i WHERE o.order_id = i.order_id and o.order_id = 292325090350071808"; The routing result is ： "SELECT i.* FROM t_order_0 o, t_order_item_0 i WHERE o.order_id = i.order_id and o.order_id = 292325090350071808";
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