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Posted to issues@drill.apache.org by "Paul Rogers (JIRA)" <ji...@apache.org> on 2018/10/28 04:15:00 UTC
[jira] [Commented] (DRILL-6809) msgpack test case fails same as
with json, problem with testing framework
[ https://issues.apache.org/jira/browse/DRILL-6809?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16666282#comment-16666282 ]
Paul Rogers commented on DRILL-6809:
------------------------------------
[~jccote], thanks for finding and reporting this. Turned out that this is indeed a bug. If you need a short-term fix, pick up the change in the {{SingleSchemaInference}} class from the pull request for this bug.
> msgpack test case fails same as with json, problem with testing framework
> -------------------------------------------------------------------------
>
> Key: DRILL-6809
> URL: https://issues.apache.org/jira/browse/DRILL-6809
> Project: Apache Drill
> Issue Type: Bug
> Reporter: jean-claude
> Priority: Minor
>
> 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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