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https://issues.apache.org/jira/browse/DRILL-1796?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Chun Chang closed DRILL-1796.
-----------------------------
Assignee: Chun Chang (was: Hanifi Gunes)
already verified.
> display a map as value caused ExecutionSetupException
> -----------------------------------------------------
>
> Key: DRILL-1796
> URL: https://issues.apache.org/jira/browse/DRILL-1796
> Project: Apache Drill
> Issue Type: Bug
> Components: Execution - Data Types
> Reporter: Chun Chang
> Assignee: Chun Chang
> Fix For: 0.8.0
>
>
> #Mon Dec 01 11:15:02 PST 2014
> git.commit.id.abbrev=a60e1db
> Have a parquet data contains the following:
> 0: jdbc:drill:schema=dfs.drillTestDir> select t.fields.map[0] from
> `data.parquet` as t limit 2;
> +------------+
> | EXPR$0 |
> +------------+
> | {"key":"ho_wf2gp","value":{"member2":0}} |
> | {"key":"ho_wf2gp","value":{"member2":0}} |
> +------------+
> The following query displaying 'key' works:
> 0: jdbc:drill:schema=dfs.drillTestDir> select t.fields.map[0].`key` from
> `data.parquet` as t limit 2;
> +------------+
> | EXPR$0 |
> +------------+
> | ho_wf2gp |
> | ho_wf2gp |
> +------------+
> But if the field to display is a map, then I get the exception:
> 0: jdbc:drill:schema=dfs.drillTestDir> select t.fields.map[0].`value` from
> `data.parquet` as t limit 2;
> Query failed: Query failed: Failure while running fragment., You tried to
> write a VarChar type when you are using a ValueWriter of type
> NullableVarCharWriterImpl. [ 5494307b-7c11-421e-be49-d0bf043a4ee1 on
> qa-node120.qa.lab:31010 ]
> [ 5494307b-7c11-421e-be49-d0bf043a4ee1 on qa-node120.qa.lab:31010 ]
> Error: exception while executing query: Failure while executing query.
> (state=,code=0)
> Here is the stack:
> 12:23:09.249 [2b8331d1-db0c-1150-f58e-7884c00ea314:frag:0:0] WARN
> o.a.d.e.w.fragment.FragmentExecutor - Error while initializing or executing
> fragment
> org.apache.drill.common.exceptions.ExecutionSetupException:
> java.lang.IllegalArgumentException: You tried to write a VarChar type when
> you are using a ValueWriter of type NullableVarCharWriterImpl.
> at
> org.apache.drill.exec.store.parquet2.DrillParquetReader.setup(DrillParquetReader.java:252)
>
> ~[drill-java-exec-0.7.0-incubating-SNAPSHOT-rebuffed.jar:0.7.0-incubating-SNAPSHOT]
> at
> org.apache.drill.exec.physical.impl.ScanBatch.<init>(ScanBatch.java:97)
> ~[drill-java-exec-0.7.0-incubating-SNAPSHOT-rebuffed.jar:0.7.0-incubating-SNAPSHOT]
> at
> org.apache.drill.exec.store.parquet.ParquetScanBatchCreator.getBatch(ParquetScanBatchCreator.java:147)
>
> ~[drill-java-exec-0.7.0-incubating-SNAPSHOT-rebuffed.jar:0.7.0-incubating-SNAPSHOT]
> at
> org.apache.drill.exec.store.parquet.ParquetScanBatchCreator.getBatch(ParquetScanBatchCreator.java:53)
>
> ~[drill-java-exec-0.7.0-incubating-SNAPSHOT-rebuffed.jar:0.7.0-incubating-SNAPSHOT]
> at
> org.apache.drill.exec.physical.impl.ImplCreator.visitOp(ImplCreator.java:62)
> ~[drill-java-exec-0.7.0-incubating-SNAPSHOT-rebuffed.jar:0.7.0-incubating-SNAPSHOT]
> at
> org.apache.drill.exec.physical.impl.ImplCreator.visitOp(ImplCreator.java:39)
> ~[drill-java-exec-0.7.0-incubating-SNAPSHOT-rebuffed.jar:0.7.0-incubating-SNAPSHOT]
> at
> org.apache.drill.exec.physical.base.AbstractPhysicalVisitor.visitSubScan(AbstractPhysicalVisitor.java:125)
>
> ~[drill-java-exec-0.7.0-incubating-SNAPSHOT-rebuffed.jar:0.7.0-incubating-SNAPSHOT]
> at
> org.apache.drill.exec.store.parquet.ParquetRowGroupScan.accept(ParquetRowGroupScan.java:107)
>
> ~[drill-java-exec-0.7.0-incubating-SNAPSHOT-rebuffed.jar:0.7.0-incubating-SNAPSHOT]
> at
> org.apache.drill.exec.physical.impl.ImplCreator.getChildren(ImplCreator.java:74)
>
> ~[drill-java-exec-0.7.0-incubating-SNAPSHOT-rebuffed.jar:0.7.0-incubating-SNAPSHOT]
> at
> org.apache.drill.exec.physical.impl.ImplCreator.visitOp(ImplCreator.java:62)
> ~[drill-java-exec-0.7.0-incubating-SNAPSHOT-rebuffed.jar:0.7.0-incubating-SNAPSHOT]
> at
> org.apache.drill.exec.physical.impl.ImplCreator.visitOp(ImplCreator.java:39)
> ~[drill-java-exec-0.7.0-incubating-SNAPSHOT-rebuffed.jar:0.7.0-incubating-SNAPSHOT]
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