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From Julian Hyde <jh...@apache.org>
Subject Re: Unexpected NullPointerException occurred in parsing
Date Mon, 06 Feb 2017 07:54:38 GMT
It sounds like a bug. Can you log a JIRA case, please? Is it on the Druid adapter? Can you
provide a java test case?

Julian

> On Feb 5, 2017, at 5:05 PM, Albert <zinking3@gmail.com> wrote:
> 
>> SELECT "t0"."countryName" AS "d0", SUM(1) AS "m0"
>> FROM "wikiticker" "t0"
>> GROUP BY "t0"."countryName
> 
> On Sun, Feb 5, 2017 at 2:57 PM, Jiarong Wei <vcamx3@gmail.com> wrote:
> 
>> I recently got an unexpected NullPointerException when parsing SQL (listed
>> below) using Calcite:
>> 
>> 
>>> SELECT "t0"."countryName" "d0", SUM(1) "m0"
>>> FROM "wikiticker" "t0"
>>> GROUP BY "t0"."countryName
>> 
>> 
>> Exception in thread "main" java.sql.SQLException: Error while executing SQL
>>> "SELECT "t0"."countryName" "d0",
>>>  SUM(1) "m0"
>>> FROM "wikiticker" "t0"
>>> GROUP BY "t0"."countryName"
>>> ": null
>>> 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:147)
>>> at
>>> org.apache.calcite.avatica.AvaticaStatement.executeQuery(
>> AvaticaStatement.java:208)
>>> at Main.main(Main.java:99)
>>> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>>> at
>>> sun.reflect.NativeMethodAccessorImpl.invoke(
>> NativeMethodAccessorImpl.java:57)
>>> at
>>> sun.reflect.DelegatingMethodAccessorImpl.invoke(
>> DelegatingMethodAccessorImpl.java:43)
>>> at java.lang.reflect.Method.invoke(Method.java:606)
>>> at com.intellij.rt.execution.application.AppMain.main(AppMain.java:147)
>>> Caused by: java.lang.NullPointerException
>>> at
>>> org.apache.calcite.interpreter.AggregateNode.
>> getAccumulator(AggregateNode.java:134)
>>> at
>>> org.apache.calcite.interpreter.AggregateNode.<
>> init>(AggregateNode.java:86)
>>> at org.apache.calcite.interpreter.Nodes$CoreCompiler.visit(Nodes.java:
>> 47)
>>> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>>> at
>>> sun.reflect.NativeMethodAccessorImpl.invoke(
>> NativeMethodAccessorImpl.java:57)
>>> at
>>> sun.reflect.DelegatingMethodAccessorImpl.invoke(
>> DelegatingMethodAccessorImpl.java:43)
>>> at java.lang.reflect.Method.invoke(Method.java:606)
>>> at
>>> org.apache.calcite.util.ReflectUtil.invokeVisitorInternal(
>> ReflectUtil.java:257)
>>> at org.apache.calcite.util.ReflectUtil.invokeVisitor(
>> ReflectUtil.java:214)
>>> at
>>> org.apache.calcite.util.ReflectUtil$1.invokeVisitor(
>> ReflectUtil.java:471)
>>> at
>>> org.apache.calcite.interpreter.Interpreter$Compiler.visit(Interpreter.
>> java:476)
>>> at
>>> org.apache.calcite.interpreter.Interpreter$Compiler.visitRoot(
>> Interpreter.java:433)
>>> at org.apache.calcite.interpreter.Interpreter.<init>
>> (Interpreter.java:75)
>>> at Baz.bind(Unknown Source)
>>> at
>>> org.apache.calcite.jdbc.CalcitePrepare$CalciteSignature.enumerable(
>> CalcitePrepare.java:327)
>>> at
>>> org.apache.calcite.jdbc.CalciteConnectionImpl.enumerable(
>> CalciteConnectionImpl.java:289)
>>> at
>>> org.apache.calcite.jdbc.CalciteMetaImpl._createIterable(
>> CalciteMetaImpl.java:553)
>>> at
>>> org.apache.calcite.jdbc.CalciteMetaImpl.createIterable(
>> CalciteMetaImpl.java:544)
>>> at
>>> org.apache.calcite.avatica.AvaticaResultSet.execute(
>> AvaticaResultSet.java:187)
>>> at
>>> org.apache.calcite.jdbc.CalciteResultSet.execute(
>> CalciteResultSet.java:77)
>>> at
>>> org.apache.calcite.jdbc.CalciteResultSet.execute(
>> CalciteResultSet.java:49)
>>> at
>>> org.apache.calcite.avatica.AvaticaConnection$1.execute(
>> AvaticaConnection.java:605)
>>> at
>>> org.apache.calcite.jdbc.CalciteMetaImpl.prepareAndExecute(
>> CalciteMetaImpl.java:599)
>>> at
>>> org.apache.calcite.avatica.AvaticaConnection.prepareAndExecuteInternal(
>> AvaticaConnection.java:613)
>>> at
>>> org.apache.calcite.avatica.AvaticaStatement.executeInternal(
>> AvaticaStatement.java:139)
>>> ... 7 more
>>> Process finished with exit code 1
>> 
>> 
>> It seemed as a bug of Calcite? I'd appreciate if someone could give me a
>> hand?
>> 
> 
> 
> 
> -- 
> ~~~~~~~~~~~~~~~
> no mistakes
> ~~~~~~~~~~~~~~~~~~


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