. 46 Cipher column . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 Query assistant column . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 Plain column Result Merger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 360 7.4.6 Query Optimization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 360 7.4.7 Parse Engine not continuous and most of them end with even numbers? . . 458 8.3.7 Sharding How to allow range query with using inline sharding strategy (BE‐ TWEEN AND, >, <, >=, <=)? . . . . . . . . . . . . . . .

. 45 Cipher column . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 Query assistant column . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 Plain column Result Merger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 387 7.4.6 Query Optimization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 387 7.4.7 Parse Engine not continuous and most of them end with even numbers? . . 497 8.3.7 Sharding How to allow range query with using inline sharding strategy (BE‐ TWEEN AND, >, <, >=, <=)? . . . . . . . . . . . . . . .

插件（plugins） ） MyBatis 允许你在已映射语句执行过程中的某一点进行拦截调用。默认情况下，MyBatis 允许使用插件来拦截的方法调用包括： Executor (update, query, flushStatements, commit, rollback, getTransaction, close, isClosed) ParameterHandler (getParameterObject (handleResultSets, handleOutputParameters) StatementHandler (prepare, parameterize, batch, update, query) 这些类中方法的细节可以通过查看每个方法的签名来发现，或者直接查看 MyBatis 的发行包中的源代码。 假设你想做的不仅仅是监控 方法的调用，那么你应该很好的了解正在重写的方法的行为。 因为 （避免在误配置的情况下一直安静的失败），默认值：20000 毫秒（即 20 秒）。 poolPingQuery – 发送到数据库的侦测查询，用来检验连接是否处在正常工作秩序中并准备接受请求。默认是“NO PING QUERY SET”，这会导致多数数据库驱动失败时带有一个恰当的错误消息。 poolPingEnabled – 是否启用侦测查询。若开启，也必须使用一个可执行的 SQL 语句设置 poolPingQuery

. 62 Cipher Column . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62 Query Assistant Column . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62 Plain Column . Result Merger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235 7.1.6 Query Optimization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235 7.1.7 Parse Engine . . . . . . . . . . . . . . . . . . . . . . . . . 306 7.7.13 13. [Sharding] How to allow range query with using inline sharding strat‐ egy(BETWEEN AND, >, <, >=, <=)? . . . . . . . . . . . . . . .

. 59 Cipher Column . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 Query Assistant Column . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 Plain Column . Result Merger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245 7.2.6 Query Optimization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245 7.2.7 Parse Engine not continuous and most of them end with even numbers? . 349 7.8.14 [Sharding] How to allow range query with using inline sharding strat‐ egy(BETWEEN AND, >, <, >=, <=)? . . . . . . . . . . . . . . .

. 61 Cipher Column . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 Query Assistant Column . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 Plain Column . Result Merger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 256 7.2.6 Query Optimization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 256 7.2.7 Parse Engine not continuous and most of them end with even numbers? . 361 7.8.14 [Sharding] How to allow range query with using inline sharding strat‐ egy(BETWEEN AND, >, <, >=, <=)? . . . . . . . . . . . . . . .

business SDK, can work with Spring IOC • Admin Console – Job administration – Job event trace query – Registry center management 3 3 Environment Required 3.1 Java Java 8 or above required. 3 "shardingItem":0,"shardingParameter": "Beijing"} Use Java API Job configuration ElasticJob uses the builder mode to create job configuration objects. The code example is as follows: JobConfiguration jobConfig function, which can handle important events in the scheduling process through event subscription for query, statistics and monitor. Now, the event subscription based on relation database is provided to record

22 SQL Parsing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Query Optimization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 SQL Route . BASE transaction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67 3.3 Replica query . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67 3.3.1 Background metadata loading when service starts up? . . . . . . . . . . . . . . 300 7.19 How to allow range query with using inline sharding strategy(BETWEEN AND, >, <, >=, <=)? . . . . . . . . . . . . . . . .

xml"); //2.创建构建者对象 SqlSessionFactoryBuilder builder = new SqlSessionFactoryBuilder(); //3.创建 SqlSession 工厂对象 factory = builder.build(in); //4.创建 SqlSession 对象 session = xml"); //2.创建构建者对象 SqlSessionFactoryBuilder builder = new SqlSessionFactoryBuilder(); //3.创建 SqlSession 工厂对象 factory = builder.build(in); //4.创建 Dao 接口的实现类 userDao = new

读写分离逻辑数据源名称 dynamic-strategy: # 读写分离类型 auto-aware-data-source-name: # 数据库发现逻辑数据源名称 write-data-source-query-enabled: # 从库全部下线，主库是否承担读流量 loadBalancerName: # 负载均衡算法名称 # 负载均衡算法配置 loadBalancers: cipherColumn: username encryptorName: name-encryptor pwd: cipherColumn: pwd assistedQueryColumn: assisted_query_pwd encryptorName: pwd_encryptor encryptors: name-encryptor: type: AES props: aes-key-value: Configuration dataSourceConfig = new ReadwriteSplittingDataSourceRuleConfiguration( "demo_read_query_ds", new StaticReadwriteSplittingStrategyConfiguration("demo_write_ds", Arrays.asList("demo_read_ds_0"