Neeraja created DRILL-487:
-----------------------------
Summary: Joining across different data sources throw 'schema
change' exception
Key: DRILL-487
URL: https://issues.apache.org/jira/browse/DRILL-487
Project: Apache Drill
Issue Type: Bug
Reporter: Neeraja
Priority: Critical
Cross data source queries are throwing exception. Examples include between a
file and Hive table, a hive table and HBase table, 2 files of different formats.
Here is a simple example. I will add more detailed log.
select c.c_custkey from
dfs.`/home/mapr/tpch/sf-0.1_tpc-h_DataParquet/customer.parquet` c,
dfs.`/home/mapr/sample-data/userprofilejson/user1.json` u
where c.c_custkey = u.id;
user1.json is below.
{
"id":8362,
"account":
{
"name":"Alice",
"email":"[email protected]"
},
"address":
{
"street":"123 Ballmer Av",
"zipcode":"12345",
"state":"CA"
}
}
Exception:
message: "Screen received stop request sent. < SchemaChangeException:[
org.apache.drill.exec.exception.ClassTransformationException: Failure
generating transformation classes for value: \n \npackage
org.apache.drill.exec.test.generated;\n\nimport
org.apache.drill.exec.exception.SchemaChangeException;\nimport
org.apache.drill.exec.ops.FragmentContext;\nimport
org.apache.drill.exec.physical.impl.join.JoinStatus;\nimport
org.apache.drill.exec.record.RecordBatch;\nimport
org.apache.drill.exec.record.VectorContainer;\nimport
org.apache.drill.exec.vector.BigIntVector;\nimport
org.apache.drill.exec.vector.Float8Vector;\nimport
org.apache.drill.exec.vector.NullableBigIntVector;\nimport
org.apache.drill.exec.vector.NullableIntVector;\nimport
org.apache.drill.exec.vector.NullableVarCharVector;\nimport
org.apache.drill.exec.vector.VarBinaryVector;\n\npublic class JoinWorkerGen141
{\n\n JoinStatus status;\n VectorContainer outgoing;\n
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