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Posted to issues@drill.apache.org by "Rahul Challapalli (JIRA)" <ji...@apache.org> on 2014/11/19 19:25:34 UTC
[jira] [Created] (DRILL-1748) Using convert_from (JSON) on top of
text files and selecting multiple columns results in a plan error
Rahul Challapalli created DRILL-1748:
----------------------------------------
Summary: Using convert_from (JSON) on top of text files and selecting multiple columns results in a plan error
Key: DRILL-1748
URL: https://issues.apache.org/jira/browse/DRILL-1748
Project: Apache Drill
Issue Type: Bug
Components: Functions - Drill, Query Planning & Optimization, Storage - JSON
Reporter: Rahul Challapalli
Assignee: Mehant Baid
git.commit.id.abbrev=108d29f
Dataset :
{code}
1|{"a":"b"}
{code}
The below query runs fine and returns the expected results
{code}
select columns[0], columns[1] from `convert.tbl`;
+------------+------------+
| EXPR$0 | EXPR$1 |
+------------+------------+
| 1 | {"a":"b"} |
+------------+------------+
select convert_from(columns[1], 'JSON') from `convert.tbl`;
+------------+
| EXPR$0 |
+------------+
| {"a":"b"} |
+------------+
select columns[0] from `convert.tbl`;
+------------+
| EXPR$0 |
+------------+
| 1 |
+------------+
{code}
However the below query fails with a planning issue
{code}
select columns[0] , convert_from(columns[1], 'JSON') from `convert.tbl`;
{code}
Error from the logs :
{code}
java.lang.AssertionError: RexInputRef index 1 out of range 0..0
at org.eigenbase.rex.RexChecker.visitInputRef(RexChecker.java:113) ~[optiq-core-0.9-drill-r8.jar:na]
at org.eigenbase.rex.RexChecker.visitInputRef(RexChecker.java:55) ~[optiq-core-0.9-drill-r8.jar:na]
at org.eigenbase.rex.RexInputRef.accept(RexInputRef.java:103) ~[optiq-core-0.9-drill-r8.jar:na]
at org.eigenbase.rel.ProjectRelBase.isValid(ProjectRelBase.java:156) ~[optiq-core-0.9-drill-r8.jar:na]
at org.eigenbase.rel.ProjectRelBase.<init>(ProjectRelBase.java:82) ~[optiq-core-0.9-drill-r8.jar:na]
at org.apache.drill.exec.planner.common.DrillProjectRelBase.<init>(DrillProjectRelBase.java:53) ~[drill-java-exec-0.7.0-incubating-SNAPSHOT-rebuffed.jar:0.7.0-incubating-SNAPSHOT]
at org.apache.drill.exec.planner.physical.ProjectPrel.<init>(ProjectPrel.java:43) ~[drill-java-exec-0.7.0-incubating-SNAPSHOT-rebuffed.jar:0.7.0-incubating-SNAPSHOT]
at org.apache.drill.exec.planner.physical.visitor.SplitUpComplexExpressions.visitProject(SplitUpComplexExpressions.java:135) ~[drill-java-exec-0.7.0-incubating-SNAPSHOT-rebuffed.jar:0.7.0-incubating-SNAPSHOT]
at org.apache.drill.exec.planner.physical.visitor.SplitUpComplexExpressions.visitProject(SplitUpComplexExpressions.java:58) ~[drill-java-exec-0.7.0-incubating-SNAPSHOT-rebuffed.jar:0.7.0-incubating-SNAPSHOT]
at org.apache.drill.exec.planner.physical.ProjectPrel.accept(ProjectPrel.java:69) ~[drill-java-exec-0.7.0-incubating-SNAPSHOT-rebuffed.jar:0.7.0-incubating-SNAPSHOT]
at org.apache.drill.exec.planner.physical.visitor.SplitUpComplexExpressions.visitPrel(SplitUpComplexExpressions.java:75) ~[drill-java-exec-0.7.0-incubating-SNAPSHOT-rebuffed.jar:0.7.0-incubating-SNAPSHOT]
at org.apache.drill.exec.planner.physical.visitor.SplitUpComplexExpressions.visitPrel(SplitUpComplexExpressions.java:58) ~[drill-java-exec-0.7.0-incubating-SNAPSHOT-rebuffed.jar:0.7.0-incubating-SNAPSHOT]
at org.apache.drill.exec.planner.physical.visitor.BasePrelVisitor.visitScreen(BasePrelVisitor.java:53) ~[drill-java-exec-0.7.0-incubating-SNAPSHOT-rebuffed.jar:0.7.0-incubating-SNAPSHOT]
at org.apache.drill.exec.planner.physical.ScreenPrel.accept(ScreenPrel.java:64) ~[drill-java-exec-0.7.0-incubating-SNAPSHOT-rebuffed.jar:0.7.0-incubating-SNAPSHOT]
at org.apache.drill.exec.planner.sql.handlers.DefaultSqlHandler.convertToPrel(DefaultSqlHandler.java:203) ~[drill-java-exec-0.7.0-incubating-SNAPSHOT-rebuffed.jar:0.7.0-incubating-SNAPSHOT]
at org.apache.drill.exec.planner.sql.handlers.DefaultSqlHandler.getPlan(DefaultSqlHandler.java:136) ~[drill-java-exec-0.7.0-incubating-SNAPSHOT-rebuffed.jar:0.7.0-incubating-SNAPSHOT]
at org.apache.drill.exec.planner.sql.DrillSqlWorker.getPlan(DrillSqlWorker.java:132) ~[drill-java-exec-0.7.0-incubating-SNAPSHOT-rebuffed.jar:0.7.0-incubating-SNAPSHOT]
at org.apache.drill.exec.work.foreman.Foreman.runSQL(Foreman.java:385) ~[drill-java-exec-0.7.0-incubating-SNAPSHOT-rebuffed.jar:0.7.0-incubating-SNAPSHOT]
at org.apache.drill.exec.work.foreman.Foreman.run(Foreman.java:204) ~[drill-java-exec-0.7.0-incubating-SNAPSHOT-rebuffed.jar:0.7.0-incubating-SNAPSHOT]
at org.apache.drill.exec.work.WorkManager$RunnableWrapper.run(WorkManager.java:249) [drill-java-exec-0.7.0-incubating-SNAPSHOT-rebuffed.jar:0.7.0-incubating-SNAPSHOT]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [na:1.7.0_51]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [na:1.7.0_51]
at java.lang.Thread.run(Thread.java:744) [na:1.7.0_51]
{code}
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