用下列语句，插入数据时报错，请问该如何写这条语句：

dao.insert("MD_FRGDR", Chain.make("ITDF", new Json()).adaptor(new PsqlJsonAdaptor()).add("DRGID", 90001000).add("ITNM", "FR001") );

出错日志：
org.nutz.dao.DaoException: !Nutz SQL Error: 'INSERT INTO MD_FRGDR(ITDF,DRGID,ITNM) VALUES('{}',90001000,'FR001') '
PreparedStatement:
'INSERT INTO MD_FRGDR(ITDF,DRGID,ITNM) VALUES(?,?,?) '
CaseMessage=ERROR: column "itdf" is of type jsonb but expression is of type character varying
建议：You will need to rewrite or cast the expression.
位置：46
at org.nutz.dao.impl.sql.run.NutDaoExecutor.exec(NutDaoExecutor.java:104)
at org.nutz.dao.DaoInterceptorChain.doChain(DaoInterceptorChain.java:66)
at org.nutz.dao.impl.interceptor.DaoLogInterceptor.filter(DaoLogInterceptor.java:22)
at org.nutz.dao.DaoInterceptorChain.doChain(DaoInterceptorChain.java:64)
at org.nutz.dao.DaoInterceptorChain.invoke(DaoInterceptorChain.java:139)
at org.nutz.dao.impl.sql.run.NutDaoRunner.runCallback(NutDaoRunner.java:158)
at org.nutz.dao.impl.sql.run.NutDaoRunner._runWithTransaction(NutDaoRunner.java:104)
at org.nutz.dao.impl.sql.run.NutDaoRunner._run(NutDaoRunner.java:88)
at org.nutz.dao.impl.sql.run.NutDaoRunner$1.run(NutDaoRunner.java:74)
at org.nutz.trans.Trans.exec(Trans.java:174)
at org.nutz.dao.impl.sql.run.NutDaoRunner.run(NutDaoRunner.java:72)
at org.nutz.dao.impl.DaoSupport.run(DaoSupport.java:240)
at org.nutz.dao.impl.DaoSupport._exec(DaoSupport.java:252)
at org.nutz.dao.impl.EntityOperator.exec(EntityOperator.java:55)
at org.nutz.dao.impl.NutDao.insert(NutDao.java:172)
at com.fine.app.bg.etl.JobRuleTest.beforeClass(JobRuleTest.java:50)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:108)
at org.testng.internal.Invoker.invokeConfigurationMethod(Invoker.java:523)
at org.testng.internal.Invoker.invokeConfigurations(Invoker.java:224)
at org.testng.internal.Invoker.invokeConfigurations(Invoker.java:146)
at org.testng.internal.TestMethodWorker.invokeBeforeClassMethods(TestMethodWorker.java:166)
at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:105)
at org.testng.TestRunner.privateRun(TestRunner.java:744)
at org.testng.TestRunner.run(TestRunner.java:602)
at org.testng.SuiteRunner.runTest(SuiteRunner.java:380)
at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:375)
at org.testng.SuiteRunner.privateRun(SuiteRunner.java:340)
at org.testng.SuiteRunner.run(SuiteRunner.java:289)
at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52)
at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:86)
at org.testng.TestNG.runSuitesSequentially(TestNG.java:1301)
at org.testng.TestNG.runSuitesLocally(TestNG.java:1226)
at org.testng.TestNG.runSuites(TestNG.java:1144)
at org.testng.TestNG.run(TestNG.java:1115)
at org.testng.remote.AbstractRemoteTestNG.run(AbstractRemoteTestNG.java:114)
at org.testng.remote.RemoteTestNG.initAndRun(RemoteTestNG.java:251)
at org.testng.remote.RemoteTestNG.main(RemoteTestNG.java:77)
Caused by: org.postgresql.util.PSQLException: ERROR: column "itdf" is of type jsonb but expression is of type character varying
建议：You will need to rewrite or cast the expression.
位置：46
at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2477)
at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:2190)
at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:300)
at org.postgresql.jdbc.PgStatement.executeInternal(PgStatement.java:428)
at org.postgresql.jdbc.PgStatement.execute(PgStatement.java:354)
at org.postgresql.jdbc.PgPreparedStatement.executeWithFlags(PgPreparedStatement.java:169)
at org.postgresql.jdbc.PgPreparedStatement.execute(PgPreparedStatement.java:158)
at com.mchange.v2.c3p0.impl.NewProxyPreparedStatement.execute(NewProxyPreparedStatement.java:67)
at org.nutz.dao.impl.sql.run.NutDaoExecutor._runPreparedStatement(NutDaoExecutor.java:308)
at org.nutz.dao.impl.sql.run.NutDaoExecutor.exec(NutDaoExecutor.java:90)
... 40 more