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Posted to issues@drill.apache.org by "Volodymyr Vysotskyi (JIRA)" <ji...@apache.org> on 2019/04/01 14:52:00 UTC
[jira] [Commented] (DRILL-7076) NPE is logged when querying
postgres tables
[ https://issues.apache.org/jira/browse/DRILL-7076?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16806867#comment-16806867 ]
Volodymyr Vysotskyi commented on DRILL-7076:
--------------------------------------------
[~gparai], to reproduce this issue, bring up Postgres, create any table, connect to it from Drill, select this table and check log file for this exception.
> NPE is logged when querying postgres tables
> -------------------------------------------
>
> Key: DRILL-7076
> URL: https://issues.apache.org/jira/browse/DRILL-7076
> Project: Apache Drill
> Issue Type: Bug
> Affects Versions: 1.16.0
> Reporter: Volodymyr Vysotskyi
> Assignee: Gautam Parai
> Priority: Blocker
> Fix For: 1.16.0
>
>
> NPE is seen in logs when querying Postgres table:
> {code:sql}
> select 1 from postgres.public.tdt
> {code}
> Stack trace from {{sqlline.log}}:
> {noformat}
> 2019-03-05 13:49:19,395 [23819dc0-abf8-24f3-ea81-6ced1b6e11af:foreman] WARN o.a.d.e.p.common.DrillStatsTable - Failed to materialize the stats. Continuing without stats.
> java.lang.NullPointerException: null
> at org.apache.drill.exec.planner.common.DrillStatsTable$StatsMaterializationVisitor.visit(DrillStatsTable.java:189) [drill-java-exec-1.16.0-SNAPSHOT.jar:1.16.0-SNAPSHOT]
> at org.apache.calcite.rel.SingleRel.childrenAccept(SingleRel.java:72) [calcite-core-1.18.0-drill-r0.jar:1.18.0-drill-r0]
> at org.apache.calcite.rel.RelVisitor.visit(RelVisitor.java:44) [calcite-core-1.18.0-drill-r0.jar:1.18.0-drill-r0]
> at org.apache.drill.exec.planner.common.DrillStatsTable$StatsMaterializationVisitor.visit(DrillStatsTable.java:202) [drill-java-exec-1.16.0-SNAPSHOT.jar:1.16.0-SNAPSHOT]
> at org.apache.calcite.rel.RelVisitor.go(RelVisitor.java:61) [calcite-core-1.18.0-drill-r0.jar:1.18.0-drill-r0]
> at org.apache.drill.exec.planner.common.DrillStatsTable$StatsMaterializationVisitor.materialize(DrillStatsTable.java:177) [drill-java-exec-1.16.0-SNAPSHOT.jar:1.16.0-SNAPSHOT]
> at org.apache.drill.exec.planner.sql.handlers.DefaultSqlHandler.convertToRawDrel(DefaultSqlHandler.java:235) [drill-java-exec-1.16.0-SNAPSHOT.jar:1.16.0-SNAPSHOT]
> at org.apache.drill.exec.planner.sql.handlers.DefaultSqlHandler.convertToDrel(DefaultSqlHandler.java:331) [drill-java-exec-1.16.0-SNAPSHOT.jar:1.16.0-SNAPSHOT]
> at org.apache.drill.exec.planner.sql.handlers.DefaultSqlHandler.getPlan(DefaultSqlHandler.java:178) [drill-java-exec-1.16.0-SNAPSHOT.jar:1.16.0-SNAPSHOT]
> at org.apache.drill.exec.planner.sql.DrillSqlWorker.getQueryPlan(DrillSqlWorker.java:204) [drill-java-exec-1.16.0-SNAPSHOT.jar:1.16.0-SNAPSHOT]
> at org.apache.drill.exec.planner.sql.DrillSqlWorker.convertPlan(DrillSqlWorker.java:114) [drill-java-exec-1.16.0-SNAPSHOT.jar:1.16.0-SNAPSHOT]
> at org.apache.drill.exec.planner.sql.DrillSqlWorker.getPlan(DrillSqlWorker.java:80) [drill-java-exec-1.16.0-SNAPSHOT.jar:1.16.0-SNAPSHOT]
> at org.apache.drill.exec.work.foreman.Foreman.runSQL(Foreman.java:584) [drill-java-exec-1.16.0-SNAPSHOT.jar:1.16.0-SNAPSHOT]
> at org.apache.drill.exec.work.foreman.Foreman.run(Foreman.java:272) [drill-java-exec-1.16.0-SNAPSHOT.jar:1.16.0-SNAPSHOT]
> at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_191]
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_191]
> at java.lang.Thread.run(Thread.java:748) [na:1.8.0_191]
> {noformat}
> But query runs and returns the correct result.
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