strongduanmu opened a new issue, #28800:
URL: https://github.com/apache/shardingsphere/issues/28800

   ## Bug Report
   
   ### Which version of ShardingSphere did you use?
   
   
[299fecc](https://github.com/apache/shardingsphere/commit/299fecc718ada7737f77b98d58caf5c3f70eb0f7)
   
   ### Which project did you use? ShardingSphere-JDBC or ShardingSphere-Proxy?
   
   ShardingSphere-Proxy
   
   ### Expected behavior
   
   execute `select 1 + 1 from dual` with sql federation successfully.
   
   ### Actual behavior
   
   ```
   org.apache.calcite.runtime.CalciteContextException: At line 0, column 0: 
Object 'dual' not found
        at 
java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native
 Method)
        at 
java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
        at 
java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at 
java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:490)
        at 
org.apache.calcite.runtime.Resources$ExInstWithCause.ex(Resources.java:505)
        at org.apache.calcite.sql.SqlUtil.newContextException(SqlUtil.java:948)
        at org.apache.calcite.sql.SqlUtil.newContextException(SqlUtil.java:933)
        at 
org.apache.calcite.sql.validate.SqlValidatorImpl.newValidationError(SqlValidatorImpl.java:5469)
        at 
org.apache.calcite.sql.validate.IdentifierNamespace.resolveImpl(IdentifierNamespace.java:183)
        at 
org.apache.calcite.sql.validate.IdentifierNamespace.validateImpl(IdentifierNamespace.java:188)
        at 
org.apache.calcite.sql.validate.AbstractNamespace.validate(AbstractNamespace.java:88)
        at 
org.apache.calcite.sql.validate.SqlValidatorImpl.validateNamespace(SqlValidatorImpl.java:1144)
        at 
org.apache.calcite.sql.validate.SqlValidatorImpl.validateQuery(SqlValidatorImpl.java:1115)
        at 
org.apache.calcite.sql.validate.SqlValidatorImpl.validateFrom(SqlValidatorImpl.java:3456)
        at 
org.apache.calcite.sql.validate.SqlValidatorImpl.validateFrom(SqlValidatorImpl.java:3435)
        at 
org.apache.calcite.sql.validate.SqlValidatorImpl.validateSelect(SqlValidatorImpl.java:3792)
        at 
org.apache.calcite.sql.validate.SelectNamespace.validateImpl(SelectNamespace.java:61)
        at 
org.apache.calcite.sql.validate.AbstractNamespace.validate(AbstractNamespace.java:88)
        at 
org.apache.calcite.sql.validate.SqlValidatorImpl.validateNamespace(SqlValidatorImpl.java:1144)
        at 
org.apache.calcite.sql.validate.SqlValidatorImpl.validateQuery(SqlValidatorImpl.java:1115)
        at org.apache.calcite.sql.SqlSelect.validate(SqlSelect.java:282)
        at 
org.apache.calcite.sql.validate.SqlValidatorImpl.validateScopedExpression(SqlValidatorImpl.java:1090)
        at 
org.apache.calcite.sql.validate.SqlValidatorImpl.validate(SqlValidatorImpl.java:796)
        at 
org.apache.calcite.sql2rel.SqlToRelConverter.convertQuery(SqlToRelConverter.java:598)
        at 
com.sphereex.dbplusengine.sqltranslator.calcite.CalciteSQLTranslator.translate(CalciteSQLTranslator.java:71)
        at 
org.apache.shardingsphere.sqltranslator.rule.SQLTranslatorRule.translate(SQLTranslatorRule.java:66)
        at 
org.apache.shardingsphere.infra.rewrite.engine.RouteSQLRewriteEngine.translate(RouteSQLRewriteEngine.java:163)
        at 
org.apache.shardingsphere.infra.rewrite.engine.RouteSQLRewriteEngine.rewrite(RouteSQLRewriteEngine.java:77)
        at 
org.apache.shardingsphere.infra.rewrite.SQLRewriteEntry.rewrite(SQLRewriteEntry.java:79)
        at 
org.apache.shardingsphere.infra.connection.kernel.KernelProcessor.rewrite(KernelProcessor.java:66)
        at 
org.apache.shardingsphere.infra.connection.kernel.KernelProcessor.generateExecutionContext(KernelProcessor.java:52)
        at 
org.apache.shardingsphere.driver.jdbc.core.statement.ShardingSphereStatement.createExecutionContext(ShardingSphereStatement.java:585)
        at 
org.apache.shardingsphere.driver.jdbc.core.statement.ShardingSphereStatement.executeQuery(ShardingSphereStatement.java:217)
        at 
org.apache.shardingsphere.driver.ShardingSphereDriverTest.assertDualWrite(ShardingSphereDriverTest.java:104)
        at 
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at 
java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.base/java.lang.reflect.Method.invoke(Method.java:566)
        at 
org.junit.platform.commons.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:728)
        at 
org.junit.jupiter.engine.execution.MethodInvocation.proceed(MethodInvocation.java:60)
        at 
org.junit.jupiter.engine.execution.InvocationInterceptorChain$ValidatingInvocation.proceed(InvocationInterceptorChain.java:131)
        at 
org.junit.jupiter.engine.extension.TimeoutExtension.intercept(TimeoutExtension.java:156)
        at 
org.junit.jupiter.engine.extension.TimeoutExtension.interceptTestableMethod(TimeoutExtension.java:147)
        at 
org.junit.jupiter.engine.extension.TimeoutExtension.interceptTestMethod(TimeoutExtension.java:86)
        at 
org.junit.jupiter.engine.execution.InterceptingExecutableInvoker$ReflectiveInterceptorCall.lambda$ofVoidMethod$0(InterceptingExecutableInvoker.java:103)
        at 
org.junit.jupiter.engine.execution.InterceptingExecutableInvoker.lambda$invoke$0(InterceptingExecutableInvoker.java:93)
        at 
org.junit.jupiter.engine.execution.InvocationInterceptorChain$InterceptedInvocation.proceed(InvocationInterceptorChain.java:106)
        at 
org.junit.jupiter.engine.execution.InvocationInterceptorChain.proceed(InvocationInterceptorChain.java:64)
        at 
org.junit.jupiter.engine.execution.InvocationInterceptorChain.chainAndInvoke(InvocationInterceptorChain.java:45)
        at 
org.junit.jupiter.engine.execution.InvocationInterceptorChain.invoke(InvocationInterceptorChain.java:37)
        at 
org.junit.jupiter.engine.execution.InterceptingExecutableInvoker.invoke(InterceptingExecutableInvoker.java:92)
        at 
org.junit.jupiter.engine.execution.InterceptingExecutableInvoker.invoke(InterceptingExecutableInvoker.java:86)
        at 
org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$invokeTestMethod$7(TestMethodTestDescriptor.java:218)
        at 
org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
        at 
org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.invokeTestMethod(TestMethodTestDescriptor.java:214)
        at 
org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:139)
        at 
org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:69)
        at 
org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:151)
        at 
org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
        at 
org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141)
        at 
org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)
        at 
org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139)
        at 
org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
        at 
org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138)
        at 
org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95)
        at java.base/java.util.ArrayList.forEach(ArrayList.java:1541)
        at 
org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41)
        at 
org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155)
        at 
org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
        at 
org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141)
        at 
org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)
        at 
org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139)
        at 
org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
        at 
org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138)
        at 
org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95)
        at java.base/java.util.ArrayList.forEach(ArrayList.java:1541)
        at 
org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41)
        at 
org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155)
        at 
org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
        at 
org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141)
        at 
org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)
        at 
org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139)
        at 
org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
        at 
org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138)
        at 
org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95)
        at 
org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.submit(SameThreadHierarchicalTestExecutorService.java:35)
        at 
org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:57)
        at 
org.junit.platform.engine.support.hierarchical.HierarchicalTestEngine.execute(HierarchicalTestEngine.java:54)
        at 
org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:198)
        at 
org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:169)
        at 
org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:93)
        at 
org.junit.platform.launcher.core.EngineExecutionOrchestrator.lambda$execute$0(EngineExecutionOrchestrator.java:58)
        at 
org.junit.platform.launcher.core.EngineExecutionOrchestrator.withInterceptedStreams(EngineExecutionOrchestrator.java:141)
        at 
org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:57)
        at 
org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:103)
        at 
org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:85)
        at 
org.junit.platform.launcher.core.DelegatingLauncher.execute(DelegatingLauncher.java:47)
        at 
org.junit.platform.launcher.core.SessionPerRequestLauncher.execute(SessionPerRequestLauncher.java:63)
        at 
com.intellij.junit5.JUnit5IdeaTestRunner.startRunnerWithArgs(JUnit5IdeaTestRunner.java:57)
        at 
com.intellij.rt.junit.IdeaTestRunner$Repeater$1.execute(IdeaTestRunner.java:38)
        at 
com.intellij.rt.execution.junit.TestsRepeater.repeat(TestsRepeater.java:11)
        at 
com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:35)
        at 
com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:232)
        at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:55)
   Caused by: org.apache.calcite.sql.validate.SqlValidatorException: Object 
'dual' not found
        at 
java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native
 Method)
        at 
java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
        at 
java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at 
java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:490)
        at 
org.apache.calcite.runtime.Resources$ExInstWithCause.ex(Resources.java:505)
        at org.apache.calcite.runtime.Resources$ExInst.ex(Resources.java:599)
        ... 99 more
   ```
   
   ### Reason analyze (If you can)
   
   ### Steps to reproduce the behavior, such as: SQL to execute, sharding rule 
configuration, when exception occur etc.
   
   ### Example codes for reproduce this issue (such as a github link).
   


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