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From "Khurram Faraaz (JIRA)" <j...@apache.org>
Subject [jira] [Created] (DRILL-3183) Query that uses window functions returns NPE
Date Tue, 26 May 2015 19:14:18 GMT
Khurram Faraaz created DRILL-3183:
-------------------------------------

             Summary: Query that uses window functions returns NPE
                 Key: DRILL-3183
                 URL: https://issues.apache.org/jira/browse/DRILL-3183
             Project: Apache Drill
          Issue Type: Bug
          Components: Query Planning & Optimization
    Affects Versions: 1.0.0
         Environment: faec150598840c40827e6493992d81209aa936da
            Reporter: Khurram Faraaz
            Assignee: Jinfeng Ni


Test was run on 4 node cluster on CentOS. We see NPE for a query that uses window functions.
Data was from CSV file (headers were ignored).
To enable window functions, 
alter session set `window.enable`=true;

These two queries work 

{code}
SELECT count(salary) OVER w, count(salary) OVER w FROM cp.`employee.json` t WINDOW w AS (PARTITION
BY store_id ORDER BY position_id DESC);

SELECT count(columns[0]) OVER(PARTITION BY columns[1] ORDER BY columns[0] DESC), count(columns[0])
OVER(PARTITION BY columns[1] ORDER BY columns[0] DESC) FROM `airports.csv`;
{code}

These two queries do not work and in the second query we see a NPE

{code}
0: jdbc:drill:schema=dfs.tmp> SELECT count(*) OVER w, count(*) OVER w FROM `airports.csv`
WINDOW w AS (PARTITION BY columns[1] ORDER BY columns[0] DESC);
Error: PARSE ERROR: From line 1, column 87 to line 1, column 93: Table 'columns' not found


[Error Id: 51d080bc-580f-44cc-a9be-d29ae60900c3 on centos-03.qa.lab:31010] (state=,code=0)
{code}

Query that returns NPE.
{code}
0: jdbc:drill:schema=dfs.tmp> SELECT count(*) OVER w, count(*) OVER w FROM `airports.csv`
t WINDOW w AS (PARTITION BY t.columns[1] ORDER BY t.columns[0] DESC);
Error: PARSE ERROR: java.lang.NullPointerException


[Error Id: 27e933bf-1382-4aae-bfef-36444a69acc9 on centos-03.qa.lab:31010] (state=,code=0)
{code}

Stack trace from drillbit.log

{code}
2015-05-26 19:07:33,104 [2a9b3b8a-4d0b-ba7b-f0ff-f8038f9f9dbd:foreman] INFO  o.a.drill.exec.work.foreman.Foreman
- State change requested.  PENDING --> FAILED
org.apache.drill.exec.work.foreman.ForemanException: Unexpected exception during fragment
initialization: PARSE ERROR: java.lang.NullPointerException


[Error Id: 16e17855-32f7-4687-9502-5b4880bb11a4 ]
        at org.apache.drill.exec.work.foreman.Foreman.run(Foreman.java:251) [drill-java-exec-1.0.0-mapr-r1-rebuffed.jar:1.0.0-mapr-r1]
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
[na:1.7.0_45]
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
[na:1.7.0_45]
        at java.lang.Thread.run(Thread.java:744) [na:1.7.0_45]
Caused by: org.apache.drill.common.exceptions.UserException: PARSE ERROR: java.lang.NullPointerException


[Error Id: 16e17855-32f7-4687-9502-5b4880bb11a4 ]
        at org.apache.drill.common.exceptions.UserException$Builder.build(UserException.java:522)
~[drill-common-1.0.0-mapr-r1-rebuffed.jar:1.0.0-mapr-r1]
        at org.apache.drill.exec.planner.sql.DrillSqlWorker.getPlan(DrillSqlWorker.java:180)
~[drill-java-exec-1.0.0-mapr-r1-rebuffed.jar:1.0.0-mapr-r1]
        at org.apache.drill.exec.work.foreman.Foreman.runSQL(Foreman.java:902) [drill-java-exec-1.0.0-mapr-r1-rebuffed.jar:1.0.0-mapr-r1]
        at org.apache.drill.exec.work.foreman.Foreman.run(Foreman.java:240) [drill-java-exec-1.0.0-mapr-r1-rebuffed.jar:1.0.0-mapr-r1]
        ... 3 common frames omitted
Caused by: org.apache.calcite.tools.ValidationException: java.lang.NullPointerException
        at org.apache.calcite.prepare.PlannerImpl.validate(PlannerImpl.java:176) ~[calcite-core-1.1.0-drill-r7.jar:1.1.0-drill-r7]
        at org.apache.calcite.prepare.PlannerImpl.validateAndGetType(PlannerImpl.java:185)
~[calcite-core-1.1.0-drill-r7.jar:1.1.0-drill-r7]
        at org.apache.drill.exec.planner.sql.handlers.DefaultSqlHandler.validateNode(DefaultSqlHandler.java:226)
~[drill-java-exec-1.0.0-mapr-r1-rebuffed.jar:1.0.0-mapr-r1]
        at org.apache.drill.exec.planner.sql.handlers.DefaultSqlHandler.getPlan(DefaultSqlHandler.java:178)
~[drill-java-exec-1.0.0-mapr-r1-rebuffed.jar:1.0.0-mapr-r1]
        at org.apache.drill.exec.planner.sql.DrillSqlWorker.getPlan(DrillSqlWorker.java:177)
~[drill-java-exec-1.0.0-mapr-r1-rebuffed.jar:1.0.0-mapr-r1]
        ... 5 common frames omitted
Caused by: java.lang.NullPointerException: null
        at org.apache.calcite.rel.type.RelDataTypeImpl.getField(RelDataTypeImpl.java:82) ~[calcite-core-1.1.0-drill-r7.jar:1.1.0-drill-r7]
        at org.apache.calcite.sql.validate.SqlValidatorUtil.lookupField(SqlValidatorUtil.java:116)
~[calcite-core-1.1.0-drill-r7.jar:1.1.0-drill-r7]
        at org.apache.calcite.prepare.CalciteCatalogReader.field(CalciteCatalogReader.java:205)
~[calcite-core-1.1.0-drill-r7.jar:1.1.0-drill-r7]
        at org.apache.calcite.sql.validate.DelegatingScope.fullyQualify(DelegatingScope.java:205)
~[calcite-core-1.1.0-drill-r7.jar:1.1.0-drill-r7]
        at org.apache.calcite.sql.validate.SqlValidatorImpl.validateIdentifier(SqlValidatorImpl.java:2580)
~[calcite-core-1.1.0-drill-r7.jar:1.1.0-drill-r7]
        at org.apache.calcite.sql.SqlIdentifier.validateExpr(SqlIdentifier.java:251) ~[calcite-core-1.1.0-drill-r7.jar:1.1.0-drill-r7]
        at org.apache.calcite.sql.SqlWindow.validate(SqlWindow.java:550) ~[calcite-core-1.1.0-drill-r7.jar:1.1.0-drill-r7]
        at org.apache.calcite.sql.SqlNodeList.validate(SqlNodeList.java:147) ~[calcite-core-1.1.0-drill-r7.jar:1.1.0-drill-r7]
        at org.apache.calcite.sql.validate.SqlValidatorImpl.validateWindowClause(SqlValidatorImpl.java:3010)
~[calcite-core-1.1.0-drill-r7.jar:1.1.0-drill-r7]
        at org.apache.calcite.sql.validate.SqlValidatorImpl.validateSelect(SqlValidatorImpl.java:2957)
~[calcite-core-1.1.0-drill-r7.jar:1.1.0-drill-r7]
        at org.apache.calcite.sql.validate.SelectNamespace.validateImpl(SelectNamespace.java:60)
~[calcite-core-1.1.0-drill-r7.jar:1.1.0-drill-r7]
        at org.apache.calcite.sql.validate.AbstractNamespace.validate(AbstractNamespace.java:86)
~[calcite-core-1.1.0-drill-r7.jar:1.1.0-drill-r7]
        at org.apache.calcite.sql.validate.SqlValidatorImpl.validateNamespace(SqlValidatorImpl.java:874)
~[calcite-core-1.1.0-drill-r7.jar:1.1.0-drill-r7]
        at org.apache.calcite.sql.validate.SqlValidatorImpl.validateQuery(SqlValidatorImpl.java:863)
~[calcite-core-1.1.0-drill-r7.jar:1.1.0-drill-r7]
        at org.apache.calcite.sql.SqlSelect.validate(SqlSelect.java:210) ~[calcite-core-1.1.0-drill-r7.jar:1.1.0-drill-r7]
        at org.apache.calcite.sql.validate.SqlValidatorImpl.validateScopedExpression(SqlValidatorImpl.java:837)
~[calcite-core-1.1.0-drill-r7.jar:1.1.0-drill-r7]
        at org.apache.calcite.sql.validate.SqlValidatorImpl.validate(SqlValidatorImpl.java:552)
~[calcite-core-1.1.0-drill-r7.jar:1.1.0-drill-r7]
        at org.apache.calcite.prepare.PlannerImpl.validate(PlannerImpl.java:174) ~[calcite-core-1.1.0-drill-r7.jar:1.1.0-drill-r7]
        ... 9 common frames omitted

{code}



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