[
https://issues.apache.org/jira/browse/FLINK-8077?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
yuqi closed FLINK-8077.
-----------------------
Resolution: Not A Problem
> Can't distinguish overloaded user-defined functions that have Double and
> BigDecimal arguments
> ---------------------------------------------------------------------------------------------
>
> Key: FLINK-8077
> URL: https://issues.apache.org/jira/browse/FLINK-8077
> Project: Flink
> Issue Type: Bug
> Affects Versions: 1.3.2
> Reporter: yuqi
> Fix For: 1.4.0
>
>
> We define a udf function class have two function as follows
> {code:java}
> public double toDouble(Double var) {
> return var;
> }
>
> public double toDouble(Double var) {
> return var;
> }
> {code}
> when use it in sql like:
> {code:sql}
> select sum(price) from tb;
> {code}
> where price is a double value in tb, exception occurs:
> {code:java}
> java.lang.AssertionError: DECIMAL(19, 0)
> at
> org.apache.calcite.sql.type.SqlTypeExplicitPrecedenceList.compareTypePrecedence(SqlTypeExplicitPrecedenceList.java:154)
> at org.apache.calcite.sql.SqlUtil.bestMatch(SqlUtil.java:626)
> at
> org.apache.calcite.sql.SqlUtil.filterRoutinesByTypePrecedence(SqlUtil.java:592)
> at
> org.apache.calcite.sql.SqlUtil.lookupSubjectRoutines(SqlUtil.java:446)
> at org.apache.calcite.sql.SqlUtil.lookupRoutine(SqlUtil.java:371)
> at org.apache.calcite.sql.SqlFunction.deriveType(SqlFunction.java:245)
> at org.apache.calcite.sql.SqlFunction.deriveType(SqlFunction.java:223)
> at
> org.apache.calcite.sql.validate.SqlValidatorImpl$DeriveTypeVisitor.visit(SqlValidatorImpl.java:5371)
> at
> org.apache.calcite.sql.validate.SqlValidatorImpl$DeriveTypeVisitor.visit(SqlValidatorImpl.java:5358)
> at org.apache.calcite.sql.SqlCall.accept(SqlCall.java:138)
> at
> org.apache.calcite.sql.validate.SqlValidatorImpl.deriveTypeImpl(SqlValidatorImpl.java:1592)
> at
> org.apache.calcite.sql.validate.SqlValidatorImpl.deriveType(SqlValidatorImpl.java:1577)
> at org.apache.calcite.sql.SqlNode.validateExpr(SqlNode.java:236)
> at org.apache.calcite.sql.SqlOperator.validateCall(SqlOperator.java:407)
> at
> org.apache.calcite.sql.validate.SqlValidatorImpl.validateCall(SqlValidatorImpl.java:5081)
> at org.apache.calcite.sql.SqlCall.validate(SqlCall.java:115)
> at org.apache.calcite.sql.SqlNode.validateExpr(SqlNode.java:235)
> at org.apache.calcite.sql.SqlOperator.validateCall(SqlOperator.java:407)
> at
> org.apache.calcite.sql.validate.SqlValidatorImpl.validateCall(SqlValidatorImpl.java:5081)
> at org.apache.calcite.sql.SqlCall.validate(SqlCall.java:115)
> at
> org.apache.calcite.sql.validate.SqlValidatorImpl.validateScopedExpression(SqlValidatorImpl.java:901)
> at
> org.apache.calcite.sql.validate.SqlValidatorImpl.validate(SqlValidatorImpl.java:611)
> at
> org.apache.calcite.sql2rel.SqlToRelConverter.convertQuery(SqlToRelConverter.java:551)
> at org.apache.calcite.prepare.Prepare.prepareSql(Prepare.java:263)
> at org.apache.calcite.prepare.Prepare.prepareSql(Prepare.java:229)
> at
> org.apache.calcite.prepare.CalcitePrepareImpl.prepare2_(CalcitePrepareImpl.java:786)
> at
> org.apache.calcite.prepare.CalcitePrepareImpl.prepare_(CalcitePrepareImpl.java:640)
> at
> org.apache.calcite.prepare.CalcitePrepareImpl.prepareSql(CalcitePrepareImpl.java:610)
> at
> org.apache.calcite.jdbc.CalciteConnectionImpl.parseQuery(CalciteConnectionImpl.java:221)
> 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)
> at
> org.apache.calcite.avatica.AvaticaStatement.executeQuery(AvaticaStatement.java:218)
> at
> org.apache.calcite.test.CalciteAssert.assertQuery(CalciteAssert.java:564)
> at
> org.apache.calcite.test.CalciteAssert$AssertQuery.returns(CalciteAssert.java:1337)
> at
> org.apache.calcite.test.CalciteAssert$AssertQuery.returns(CalciteAssert.java:1320)
> at
> org.apache.calcite.test.CalciteAssert$AssertQuery.returns(CalciteAssert.java:1284)
> at
> org.apache.calcite.test.UdfTest.testDoubleAndDecimal(UdfTest.java:896)
> 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)
> {code}
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