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From "Rahul Challapalli (JIRA)" <j...@apache.org>
Subject [jira] [Closed] (DRILL-1748) Using convert_from (JSON) on top of text files and selecting multiple columns results in a plan error
Date Fri, 24 Apr 2015 22:09:42 GMT

     [ https://issues.apache.org/jira/browse/DRILL-1748?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Rahul Challapalli closed DRILL-1748.
------------------------------------

Verified and re-organized the below testcases

Functional/Passing/json_kvgenflatten/convert/convert_json_text8.q
Functional/Passing/json_kvgenflatten/convert/convert_json_text4.q

> 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
>             Fix For: 0.7.0
>
>         Attachments: DRILL-1748.patch
>
>
> 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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