Major Description
i define a udf with variable paramater in Smalls.java like
public static String variableParameterFunction(String... strings) {
String result = "";
if (strings == null) {
return result;
}
for (String s : strings) {
result += s;
}
return result;
}
then i use it in UdfTest.java
with.query("select \"adhoc\".\"variableParameterFunction\"('test', 'test')").returns("EXPR$0=testtest\n");
will get the following error ava.lang.RuntimeException: exception while executing [select "adhoc"."variableParameterFunction"('test', 'test')] at org.apache.calcite.test.CalciteAssert$AssertQuery.returns(CalciteAssert.java:1270) at org.apache.calcite.test.CalciteAssert$AssertQuery.returns(CalciteAssert.java:1249) at org.apache.calcite.test.CalciteAssert$AssertQuery.returns(CalciteAssert.java:1213) at org.apache.calcite.test.UdfTest.testDateAndTimestamp(UdfTest.java:831) 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:497) at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47) at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17) at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57) at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290) at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58) at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268) at org.junit.runners.ParentRunner.run(ParentRunner.java:363) at org.junit.runner.JUnitCore.run(JUnitCore.java:137) at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:117) at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:42) at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:262) at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:84) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:497) at com.intellij.rt.execution.application.AppMain.main(AppMain.java:147) Caused by: java.lang.RuntimeException: With materializationsEnabled=false, limit=0 at org.apache.calcite.test.CalciteAssert.assertQuery(CalciteAssert.java:549) at org.apache.calcite.test.CalciteAssert$AssertQuery.returns(CalciteAssert.java:1266) ... 30 more Caused by: java.sql.SQLException: Error while executing SQL "select "adhoc"."variableParameterFunction"('test', 'test')": From line 1, column 16 to line 1, column 58: No match found for function signature variableParameterFunction(<CHARACTER>, <CHARACTER>) at org.apache.calcite.avatica.Helper.createException(Helper.java:56) at org.apache.calcite.avatica.Helper.createException(Helper.java:41) at org.apache.calcite.avatica.AvaticaStatement.executeInternal(AvaticaStatement.java:156) at org.apache.calcite.avatica.AvaticaStatement.executeQuery(AvaticaStatement.java:218) at org.apache.calcite.test.CalciteAssert.assertQuery(CalciteAssert.java:517) ... 31 more Caused by: org.apache.calcite.runtime.CalciteContextException: From line 1, column 16 to line 1, column 58: No match found for function signature variableParameterFunction(<CHARACTER>, <CHARACTER>) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:422) at org.apache.calcite.runtime.Resources$ExInstWithCause.ex(Resources.java:463) at org.apache.calcite.sql.SqlUtil.newContextException(SqlUtil.java:804) at org.apache.calcite.sql.SqlUtil.newContextException(SqlUtil.java:789) at org.apache.calcite.sql.validate.SqlValidatorImpl.newValidationError(SqlValidatorImpl.java:4393) at org.apache.calcite.sql.validate.SqlValidatorImpl.handleUnresolvedFunction(SqlValidatorImpl.java:1672) at org.apache.calcite.sql.SqlFunction.deriveType(SqlFunction.java:278) at org.apache.calcite.sql.SqlFunction.deriveType(SqlFunction.java:223) at org.apache.calcite.sql.validate.SqlValidatorImpl$DeriveTypeVisitor.visit(SqlValidatorImpl.java:5039) at org.apache.calcite.sql.validate.SqlValidatorImpl$DeriveTypeVisitor.visit(SqlValidatorImpl.java:5026) at org.apache.calcite.sql.SqlCall.accept(SqlCall.java:137) at org.apache.calcite.sql.validate.SqlValidatorImpl.deriveTypeImpl(SqlValidatorImpl.java:1588) at org.apache.calcite.sql.validate.SqlValidatorImpl.deriveType(SqlValidatorImpl.java:1573) at org.apache.calcite.sql.validate.SqlValidatorImpl.expandSelectItem(SqlValidatorImpl.java:455) at org.apache.calcite.sql.validate.SqlValidatorImpl.validateSelectList(SqlValidatorImpl.java:3696) at org.apache.calcite.sql.validate.SqlValidatorImpl.validateSelect(SqlValidatorImpl.java:3193) at org.apache.calcite.sql.validate.SelectNamespace.validateImpl(SelectNamespace.java:60) at org.apache.calcite.sql.validate.AbstractNamespace.validate(AbstractNamespace.java:84) at org.apache.calcite.sql.validate.SqlValidatorImpl.validateNamespace(SqlValidatorImpl.java:939) at org.apache.calcite.sql.validate.SqlValidatorImpl.validateQuery(SqlValidatorImpl.java:920) at org.apache.calcite.sql.SqlSelect.validate(SqlSelect.java:220) at org.apache.calcite.sql.validate.SqlValidatorImpl.validateScopedExpression(SqlValidatorImpl.java:895) at org.apache.calcite.sql.validate.SqlValidatorImpl.validate(SqlValidatorImpl.java:605) at org.apache.calcite.sql2rel.SqlToRelConverter.convertQuery(SqlToRelConverter.java:551) at org.apache.calcite.prepare.Prepare.prepareSql(Prepare.java:264) at org.apache.calcite.prepare.Prepare.prepareSql(Prepare.java:228) at org.apache.calcite.prepare.CalcitePrepareImpl.prepare2_(CalcitePrepareImpl.java:784) at org.apache.calcite.prepare.CalcitePrepareImpl.prepare_(CalcitePrepareImpl.java:639) at org.apache.calcite.prepare.CalcitePrepareImpl.prepareSql(CalcitePrepareImpl.java:609) at org.apache.calcite.jdbc.CalciteConnectionImpl.parseQuery(CalciteConnectionImpl.java:214) at org.apache.calcite.jdbc.CalciteMetaImpl.prepareAndExecute(CalciteMetaImpl.java:603) at org.apache.calcite.avatica.AvaticaConnection.prepareAndExecuteInternal(AvaticaConnection.java:638) at org.apache.calcite.avatica.AvaticaStatement.executeInternal(AvaticaStatement.java:149) ... 33 more Caused by: org.apache.calcite.sql.validate.SqlValidatorException: No match found for function signature variableParameterFunction(<CHARACTER>, <CHARACTER>) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:422) at org.apache.calcite.runtime.Resources$ExInstWithCause.ex(Resources.java:463) at org.apache.calcite.runtime.Resources$ExInst.ex(Resources.java:572) ... 64 more