[
https://issues.apache.org/jira/browse/TAJO-386?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Jae Young Lee updated TAJO-386:
-------------------------------
Attachment: TAJO-386.patch
I've attach patch file for this issue.
But when I tested "testLog()",
I got following error in "select log(col1,col2), log(col2,col3), log(col3,co1)
from table1".
Please check this problem.
------ Error Log ---------
java.lang.IllegalStateException: Some targets cannot be evaluated in the query
block "@ROOT"
at
com.google.common.base.Preconditions.checkState(Preconditions.java:176)
at
org.apache.tajo.engine.planner.LogicalPlanner.visitProjection(LogicalPlanner.java:669)
at
org.apache.tajo.engine.planner.LogicalPlanner.visitProjection(LogicalPlanner.java:73)
at
org.apache.tajo.engine.planner.BaseAlgebraVisitor.visitChild(BaseAlgebraVisitor.java:53)
at
org.apache.tajo.engine.planner.LogicalPlanner.createPlan(LogicalPlanner.java:106)
at
org.apache.tajo.engine.eval.ExprTestBase.getRawTargets(ExprTestBase.java:79)
at
org.apache.tajo.engine.eval.ExprTestBase.testEval(ExprTestBase.java:123)
at
org.apache.tajo.engine.function.TestMathFunctions.testLog(TestMathFunctions.java:475)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at
org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:45)
at
org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
at
org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:42)
at
org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:263)
at
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:68)
at
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:47)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222)
at
org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
at
org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:30)
at org.junit.runners.ParentRunner.run(ParentRunner.java:300)
at org.junit.runner.JUnitCore.run(JUnitCore.java:157)
at
com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:77)
at
com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:195)
at
com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:63)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:120)
> Implement logarithm
> --------------------
>
> Key: TAJO-386
> URL: https://issues.apache.org/jira/browse/TAJO-386
> Project: Tajo
> Issue Type: Sub-task
> Components: function/udf
> Reporter: Jae Young Lee
> Assignee: Jae Young Lee
> Priority: Minor
> Attachments: TAJO-386.patch
>
>
> - Implement 4 logarithm functions below:
> ln( x ) - Returns the natural logarithm of x
> log([b], x ) - Returns the logarithm of x with base b
> log10( x ) - Returns the logarithm of x with base 10
> log2( x ) - Returns the logarithm of x with base 2
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