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Posted to dev@hive.apache.org by "Arkadiusz Gasior (JIRA)" <ji...@apache.org> on 2014/08/13 17:28:12 UTC
[jira] [Updated] (HIVE-7657) Nullable map of union of 3 or more
types cannot be joined
[ https://issues.apache.org/jira/browse/HIVE-7657?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Arkadiusz Gasior updated HIVE-7657:
-----------------------------------
Description:
Handling nullable map of union of 3 types or more is causing serialization issues.
Given tables:
ag_map_of_uniontype:
# col_name data_type comment
hash string None
custom_fields map<string,uniontype<bigint,double,string,boolean,int,array<uniontype<bigint,double,string,boolean,int>>,map<string,uniontype<bigint,double,string,boolean,int>>>> None
ag_simple_join_table:
# col_name data_type comment
hash string None
size int None
Query will throw java.lang.RuntimeException:
{code}
select
i.hash,
i.custom_fields,
b.size
from ag_map_of_uniontype i LEFT OUTER JOIN
ag_simple_join_table b ON (i.hash = b.hash);
{code}
{code}
org.apache.hadoop.hive.ql.exec.MapJoinOperator: Unxpected exception: java.util.ArrayList cannot be cast to org.apache.hadoop.hive.serde2.objectinspector.UnionObject
java.lang.ClassCastException: java.util.ArrayList cannot be cast to org.apache.hadoop.hive.serde2.objectinspector.UnionObject
at org.apache.hadoop.hive.serde2.objectinspector.StandardUnionObjectInspector.getTag(StandardUnionObjectInspector.java:91)
at org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe.serialize(LazySimpleSerDe.java:559)
at org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe.serialize(LazySimpleSerDe.java:529)
at org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe.serializeField(LazySimpleSerDe.java:439)
at org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe.serialize(LazySimpleSerDe.java:423)
at org.apache.hadoop.hive.ql.exec.FileSinkOperator.processOp(FileSinkOperator.java:618)
at org.apache.hadoop.hive.ql.exec.Operator.process(Operator.java:504)
at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:847)
at org.apache.hadoop.hive.ql.exec.SelectOperator.processOp(SelectOperator.java:87)
at org.apache.hadoop.hive.ql.exec.Operator.process(Operator.java:504)
at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:847)
at org.apache.hadoop.hive.ql.exec.CommonJoinOperator.genAllOneUniqueJoinObject(CommonJoinOperator.java:671)
at org.apache.hadoop.hive.ql.exec.CommonJoinOperator.checkAndGenObject(CommonJoinOperator.java:754)
at org.apache.hadoop.hive.ql.exec.MapJoinOperator.processOp(MapJoinOperator.java:222)
at org.apache.hadoop.hive.ql.exec.Operator.process(Operator.java:504)
at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:847)
at org.apache.hadoop.hive.ql.exec.TableScanOperator.processOp(TableScanOperator.java:91)
at org.apache.hadoop.hive.ql.exec.Operator.process(Operator.java:504)
at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:847)
at org.apache.hadoop.hive.ql.exec.MapOperator.process(MapOperator.java:519)
at org.apache.hadoop.hive.ql.exec.mr.ExecMapper.map(ExecMapper.java:157)
at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:50)
at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:417)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:332)
at org.apache.hadoop.mapred.Child$4.run(Child.java:268)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:415)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1554)
at org.apache.hadoop.mapred.Child.main(Child.java:262)
org.apache.hadoop.hive.ql.metadata.HiveException: Hive Runtime Error while processing row {"hash":"nzM2VsRBJReFrv4fGeSX","custom_fields":{"listOfIntegers":{5:[{4:10},{4:28},{4:42},{4:51},{4:63},{4:92},{4:113},{4:126},{4:128},{4:130},{4:144},{4:145},{4:146},{4:179},{4:182},{4:198},{4:225},{4:260},{4:232},{4:233},{4:237},{4:238},{4:255}]}}}
{code}
was:
Handling nullable union of 3 types or more is causing serialization issues, as ["null","long","string"] is not recognized nullable. Potential code causing issues might be AvroSerdeUtils.java:
{code}
public static boolean isNullableType(Schema schema) {
return schema.getType().equals(Schema.Type.UNION) &&
schema.getTypes().size() == 2 &&
(schema.getTypes().get(0).getType().equals(Schema.Type.NULL) ||
schema.getTypes().get(1).getType().equals(Schema.Type.NULL));
// [null, null] not allowed, so this check is ok.
}
{code}
Labels: serde (was: avro)
Summary: Nullable map of union of 3 or more types cannot be joined (was: Nullable union of 3 or more types is not recognized nullable)
Have to redefine issue.
> Nullable map of union of 3 or more types cannot be joined
> ---------------------------------------------------------
>
> Key: HIVE-7657
> URL: https://issues.apache.org/jira/browse/HIVE-7657
> Project: Hive
> Issue Type: Bug
> Components: Serializers/Deserializers
> Reporter: Arkadiusz Gasior
> Assignee: Ashish Kumar Singh
> Labels: serde
>
> Handling nullable map of union of 3 types or more is causing serialization issues.
> Given tables:
> ag_map_of_uniontype:
> # col_name data_type comment
> hash string None
> custom_fields map<string,uniontype<bigint,double,string,boolean,int,array<uniontype<bigint,double,string,boolean,int>>,map<string,uniontype<bigint,double,string,boolean,int>>>> None
> ag_simple_join_table:
> # col_name data_type comment
> hash string None
> size int None
> Query will throw java.lang.RuntimeException:
> {code}
> select
> i.hash,
> i.custom_fields,
> b.size
> from ag_map_of_uniontype i LEFT OUTER JOIN
> ag_simple_join_table b ON (i.hash = b.hash);
> {code}
> {code}
> org.apache.hadoop.hive.ql.exec.MapJoinOperator: Unxpected exception: java.util.ArrayList cannot be cast to org.apache.hadoop.hive.serde2.objectinspector.UnionObject
> java.lang.ClassCastException: java.util.ArrayList cannot be cast to org.apache.hadoop.hive.serde2.objectinspector.UnionObject
> at org.apache.hadoop.hive.serde2.objectinspector.StandardUnionObjectInspector.getTag(StandardUnionObjectInspector.java:91)
> at org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe.serialize(LazySimpleSerDe.java:559)
> at org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe.serialize(LazySimpleSerDe.java:529)
> at org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe.serializeField(LazySimpleSerDe.java:439)
> at org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe.serialize(LazySimpleSerDe.java:423)
> at org.apache.hadoop.hive.ql.exec.FileSinkOperator.processOp(FileSinkOperator.java:618)
> at org.apache.hadoop.hive.ql.exec.Operator.process(Operator.java:504)
> at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:847)
> at org.apache.hadoop.hive.ql.exec.SelectOperator.processOp(SelectOperator.java:87)
> at org.apache.hadoop.hive.ql.exec.Operator.process(Operator.java:504)
> at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:847)
> at org.apache.hadoop.hive.ql.exec.CommonJoinOperator.genAllOneUniqueJoinObject(CommonJoinOperator.java:671)
> at org.apache.hadoop.hive.ql.exec.CommonJoinOperator.checkAndGenObject(CommonJoinOperator.java:754)
> at org.apache.hadoop.hive.ql.exec.MapJoinOperator.processOp(MapJoinOperator.java:222)
> at org.apache.hadoop.hive.ql.exec.Operator.process(Operator.java:504)
> at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:847)
> at org.apache.hadoop.hive.ql.exec.TableScanOperator.processOp(TableScanOperator.java:91)
> at org.apache.hadoop.hive.ql.exec.Operator.process(Operator.java:504)
> at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:847)
> at org.apache.hadoop.hive.ql.exec.MapOperator.process(MapOperator.java:519)
> at org.apache.hadoop.hive.ql.exec.mr.ExecMapper.map(ExecMapper.java:157)
> at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:50)
> at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:417)
> at org.apache.hadoop.mapred.MapTask.run(MapTask.java:332)
> at org.apache.hadoop.mapred.Child$4.run(Child.java:268)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:415)
> at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1554)
> at org.apache.hadoop.mapred.Child.main(Child.java:262)
> org.apache.hadoop.hive.ql.metadata.HiveException: Hive Runtime Error while processing row {"hash":"nzM2VsRBJReFrv4fGeSX","custom_fields":{"listOfIntegers":{5:[{4:10},{4:28},{4:42},{4:51},{4:63},{4:92},{4:113},{4:126},{4:128},{4:130},{4:144},{4:145},{4:146},{4:179},{4:182},{4:198},{4:225},{4:260},{4:232},{4:233},{4:237},{4:238},{4:255}]}}}
> {code}
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