[jira] [Updated] (HIVE-7049) Unable to deserialize AVRO data when file schema and record schema are different and nullable

[Thejas M Nair (JIRA)]

 [ 
https://issues.apache.org/jira/browse/HIVE-7049?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Thejas M Nair updated HIVE-7049:

Fix Version/s: 1.2.0

> Unable to deserialize AVRO data when file schema and record schema are 
> different and nullable
> -
>
> Key: HIVE-7049
> URL: https://issues.apache.org/jira/browse/HIVE-7049
> Project: Hive
>  Issue Type: Bug
>Reporter: Mohammad Kamrul Islam
>Assignee: Daniel Dai
> Fix For: 1.2.0
>
> Attachments: HIVE-7049.1.patch, HIVE-7049.2.patch, Statistic, 
> Statistics10Min.avsc
>
>
> It mainly happens when 
> 1 )file schema and record schema are not same
> 2 ) Record schema is nullable  but file schema is not.
> The potential code location is at class AvroDeserialize
>  
> {noformat}
>  if(AvroSerdeUtils.isNullableType(recordSchema)) {
>   return deserializeNullableUnion(datum, fileSchema, recordSchema, 
> columnType);
> }
> {noformat}
> In the above code snippet, recordSchema is verified if it is nullable. But 
> the file schema is not checked.
> I tested with these values:
> {noformat}
> recordSchema= ["null","string"]
> fielSchema= "string"
> {noformat}
> And i got the following exception  mu debugged code version>.
> {noformat}
> org.apache.avro.AvroRuntimeException: Not a union: "string" 
> at org.apache.avro.Schema.getTypes(Schema.java:272)
> at 
> org.apache.hadoop.hive.serde2.avro.AvroDeserializer.deserializeNullableUnion(AvroDeserializer.java:275)
> at 
> org.apache.hadoop.hive.serde2.avro.AvroDeserializer.worker(AvroDeserializer.java:205)
> at 
> org.apache.hadoop.hive.serde2.avro.AvroDeserializer.workerBase(AvroDeserializer.java:188)
> at 
> org.apache.hadoop.hive.serde2.avro.AvroDeserializer.deserialize(AvroDeserializer.java:174)
> at 
> org.apache.hadoop.hive.serde2.avro.TestAvroDeserializer.verifyNullableType(TestAvroDeserializer.java:487)
> at 
> org.apache.hadoop.hive.serde2.avro.TestAvroDeserializer.canDeserializeNullableTypes(TestAvroDeserializer.java:407)
> {noformat}



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[jira] [Updated] (HIVE-7049) Unable to deserialize AVRO data when file schema and record schema are different and nullable

[Gunther Hagleitner (JIRA)]

 [ 
https://issues.apache.org/jira/browse/HIVE-7049?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Gunther Hagleitner updated HIVE-7049:
-
Assignee: Daniel Dai  (was: Mohammad Kamrul Islam)

 Unable to deserialize AVRO data when file schema and record schema are 
 different and nullable
 -

 Key: HIVE-7049
 URL: https://issues.apache.org/jira/browse/HIVE-7049
 Project: Hive
  Issue Type: Bug
Reporter: Mohammad Kamrul Islam
Assignee: Daniel Dai
 Attachments: HIVE-7049.1.patch, HIVE-7049.2.patch, Statistic, 
 Statistics10Min.avsc


 It mainly happens when 
 1 )file schema and record schema are not same
 2 ) Record schema is nullable  but file schema is not.
 The potential code location is at class AvroDeserialize
  
 {noformat}
  if(AvroSerdeUtils.isNullableType(recordSchema)) {
   return deserializeNullableUnion(datum, fileSchema, recordSchema, 
 columnType);
 }
 {noformat}
 In the above code snippet, recordSchema is verified if it is nullable. But 
 the file schema is not checked.
 I tested with these values:
 {noformat}
 recordSchema= [null,string]
 fielSchema= string
 {noformat}
 And i got the following exception line numbers might not be the same due to 
 mu debugged code version.
 {noformat}
 org.apache.avro.AvroRuntimeException: Not a union: string 
 at org.apache.avro.Schema.getTypes(Schema.java:272)
 at 
 org.apache.hadoop.hive.serde2.avro.AvroDeserializer.deserializeNullableUnion(AvroDeserializer.java:275)
 at 
 org.apache.hadoop.hive.serde2.avro.AvroDeserializer.worker(AvroDeserializer.java:205)
 at 
 org.apache.hadoop.hive.serde2.avro.AvroDeserializer.workerBase(AvroDeserializer.java:188)
 at 
 org.apache.hadoop.hive.serde2.avro.AvroDeserializer.deserialize(AvroDeserializer.java:174)
 at 
 org.apache.hadoop.hive.serde2.avro.TestAvroDeserializer.verifyNullableType(TestAvroDeserializer.java:487)
 at 
 org.apache.hadoop.hive.serde2.avro.TestAvroDeserializer.canDeserializeNullableTypes(TestAvroDeserializer.java:407)
 {noformat}



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