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【DM版本】:dm8
【操作系统】：windows10-x64
【CPU】:i5
【问题描述】*：在做层次查询时阿里连接池报错：

not supported.pos 197, line 4, column 43, token IDENTIFIER START

sql语句是直接从咱们社区建议中拷贝的原文如下：

在idea里start显示的是白色的，而其他关键词select、from、with、connect by prior 都是黄色的字，这就意味着start并没有被识别出事SQL关键字，只有在start前面加了where才会变黄色，但网上很多标准写法也都没有加where ，我对此很是疑惑。网上查了很多都没有结果，搞不懂这个报错是阿里连接池不支持start with 语句还是达梦数据库不支持阿里连接池，请有知道的帮忙解答下，谢谢。

下面是异常日志信息：

2023-04-05 23:34:08.996 DEBUG 14776 --- [nio-8080-exec-8] c.d.s.m.S.selectChildSysRoleById         : ==>  Preparing: SELECT role_id,role_name,parent_id,role_code,summary,data_scope,status,sort_code,create_by,create_time,update_by,update_time,user_group_id FROM sys_role where status = '1' START WITH role_id = ? CONNECT BY PRIOR role_id = parent_id
2023-04-05 23:34:09.005 ERROR 14776 --- [nio-8080-exec-8] c.alibaba.druid.filter.stat.StatFilter   : merge sql error, dbType dm, druid-1.2.16, sql : SELECT  
    role_id,role_name,parent_id,role_code,summary,data_scope,status,sort_code,create_by,create_time,update_by,update_time,user_group_id
     
        FROM sys_role where status = '1' START WITH role_id = ?
        CONNECT BY PRIOR role_id = parent_id

com.alibaba.druid.sql.parser.ParserException: not supported.pos 197, line 4, column 43, token IDENTIFIER START
	at com.alibaba.druid.sql.parser.SQLStatementParser.parseStatementList(SQLStatementParser.java:615)
	at com.alibaba.druid.sql.parser.SQLStatementParser.parseStatementList(SQLStatementParser.java:101)
	at com.alibaba.druid.sql.visitor.ParameterizedOutputVisitorUtils.parameterize(ParameterizedOutputVisitorUtils.java:163)
	at com.alibaba.druid.sql.visitor.ParameterizedOutputVisitorUtils.parameterize(ParameterizedOutputVisitorUtils.java:134)
	at com.alibaba.druid.filter.stat.StatFilter.mergeSql(StatFilter.java:148)
	at com.alibaba.druid.filter.stat.StatFilter.createSqlStat(StatFilter.java:672)
	at com.alibaba.druid.filter.stat.StatFilter.statementPrepareAfter(StatFilter.java:325)
	at com.alibaba.druid.filter.FilterEventAdapter.connection_prepareStatement(FilterEventAdapter.java:118)
	at com.alibaba.druid.filter.FilterChainImpl.connection_prepareStatement(FilterChainImpl.java:531)
	at com.alibaba.druid.proxy.jdbc.ConnectionProxyImpl.prepareStatement(ConnectionProxyImpl.java:326)
	at com.alibaba.druid.pool.DruidPooledConnection.prepareStatement(DruidPooledConnection.java:362)
	at sun.reflect.GeneratedMethodAccessor125.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.apache.ibatis.logging.jdbc.ConnectionLogger.invoke(ConnectionLogger.java:55)
	at com.sun.proxy.$Proxy137.prepareStatement(Unknown Source)
	at org.apache.ibatis.executor.statement.PreparedStatementHandler.instantiateStatement(PreparedStatementHandler.java:86)
	at org.apache.ibatis.executor.statement.BaseStatementHandler.prepare(BaseStatementHandler.java:88)
	at org.apache.ibatis.executor.statement.RoutingStatementHandler.prepare(RoutingStatementHandler.java:59)
	at org.apache.ibatis.executor.SimpleExecutor.prepareStatement(SimpleExecutor.java:87)
	at org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:62)
	at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:325)
	at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:156)
	at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:109)
	at com.github.pagehelper.PageInterceptor.intercept(PageInterceptor.java:143)
	at org.apache.ibatis.plugin.Plugin.invoke(Plugin.java:62)
	at com.sun.proxy.$Proxy136.query(Unknown Source)
	at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:151)
	at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:145)
	at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:140)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:433)
	at com.sun.proxy.$Proxy75.selectList(Unknown Source)
	at org.mybatis.spring.SqlSessionTemplate.selectList(SqlSessionTemplate.java:230)
	at org.apache.ibatis.binding.MapperMethod.executeForMany(MapperMethod.java:147)
	at org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:80)
	at org.apache.ibatis.binding.MapperProxy$PlainMethodInvoker.invoke(MapperProxy.java:145)
	at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:86)
	at com.sun.proxy.$Proxy79.selectChildSysRoleById(Unknown Source)