[DRILL-3183] Query that uses window functions returns NPE

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.0.0
• Fix Version/s: 1.1.0
• Component/s: Query Planning & Optimization
• Labels: window_function

Environment

faec150598840c40827e6493992d81209aa936da

• Assignee: Sean Hsuan-Yi Chu
• Reporter: Khurram Faraaz
• Created: 26/May/15 19:13
• Updated: 10/Dec/15 18:40
• Resolved: 26/Jun/15 18:47

Description

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

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`;

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

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)

Query that returns NPE.

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)

Stack trace from drillbit.log

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