Sachin Goyal created HIVE-7653:
----------------------------------
Summary: Hive AvroSerDe does not support circular references in
Schema
Key: HIVE-7653
URL: https://issues.apache.org/jira/browse/HIVE-7653
Project: Hive
Issue Type: Bug
Reporter: Sachin Goyal
Avro allows nullable circular references but Hive AvroSerDe does not.
Example of circular references (passing in Avro but failing in AvroSerDe):
{code}
class AvroCycleParent {
AvroCycleChild child;
public AvroCycleChild getChild () {return child;}
public void setChild (AvroCycleChild child) {this.child = child;}
}
class AvroCycleChild {
AvroCycleParent parent;
public AvroCycleParent getParent () {return parent;}
public void setParent (AvroCycleParent parent) {this.parent = parent;}
}
{code}
Due to this discrepancy, Hive is unable to read Avro records having
circular-references. For some third-party code with such references, it becomes
very hard to directly serialize it with Avro and use in Hive.
I have a patch for this with a unit-test and I will submit it shortly.
--
This message was sent by Atlassian JIRA
(v6.2#6252)
