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https://issues.apache.org/jira/browse/DRILL-6809?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Arina Ielchiieva updated DRILL-6809:
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Summary: Handle repeated map in schema inference (was: msgpack test case
fails same as with json, problem with testing framework)
> Handle repeated map in schema inference
> ---------------------------------------
>
> Key: DRILL-6809
> URL: https://issues.apache.org/jira/browse/DRILL-6809
> Project: Apache Drill
> Issue Type: Bug
> Affects Versions: 1.14.0
> Reporter: jean-claude
> Assignee: Paul Rogers
> Priority: Minor
> Labels: ready-to-commit
> Fix For: 1.15.0
>
>
> I'm trying to write a test case for a repeated map scenario. However testing
> framework is unable to infer the schema of the resultset? I'm using the API
> correctly?
>
> Thanks
> jc
>
> // create a test file
> try (OutputStreamWriter w = new OutputStreamWriter(new
> FileOutputStream(new File(testDir, "test.json")))) {
> w.write("\{\"arrayOfMap\":[{\"type\": 3, \"data\": 44}]}\n");
> }
>
> // read the test file
> String sql = "select * from `dfs.data`.`test.json`";
> RowSet actual = client.queryBuilder().sql(sql).rowSet();
>
> // error outputted
> java.lang.NullPointerException: null
> at
> org.apache.drill.exec.physical.rowSet.model.single.SingleSchemaInference.inferVector(SingleSchemaInference.java:70)
> ~[drill-java-exec-1.15.0-SNAPSHOT.jar:1.15.0-SNAPSHOT]
> at
> org.apache.drill.exec.physical.rowSet.model.single.SingleSchemaInference.inferMapSchema(SingleSchemaInference.java:91)
> ~[drill-java-exec-1.15.0-SNAPSHOT.jar:1.15.0-SNAPSHOT]
> at
> org.apache.drill.exec.physical.rowSet.model.single.SingleSchemaInference.inferVector(SingleSchemaInference.java:73)
> ~[drill-java-exec-1.15.0-SNAPSHOT.jar:1.15.0-SNAPSHOT]
> at
> org.apache.drill.exec.physical.rowSet.model.single.SingleSchemaInference.infer(SingleSchemaInference.java:64)
> ~[drill-java-exec-1.15.0-SNAPSHOT.jar:1.15.0-SNAPSHOT]
> at
> org.apache.drill.test.rowSet.DirectRowSet.fromContainer(DirectRowSet.java:77)
> ~[drill-java-exec-1.15.0-SNAPSHOT-tests.jar:1.15.0-SNAPSHOT]
> at org.apache.drill.test.QueryBuilder.rowSet(QueryBuilder.java:363)
> ~[drill-java-exec-1.15.0-SNAPSHOT-tests.jar:1.15.0-SNAPSHOT]
> at
> org.apache.drill.exec.store.msgpack.TestMsgpackRecordReader.testSchemaRepeatedMapWithFieldWithDifferentTypes(TestMsgpackRecordReader.java:245)
> ~[test-classes/:na]
> at java.lang.Thread.run(Thread.java:748) ~[na:1.8.0_181]
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