Igor Guzenko created DRILL-6944:
-----------------------------------
Summary: UnsupportedOperationException thrown for view over
MapR-DB binary table
Key: DRILL-6944
URL: https://issues.apache.org/jira/browse/DRILL-6944
Project: Apache Drill
Issue Type: Bug
Components: Execution - Data Types, Storage - MapRDB
Affects Versions: 1.15.0
Reporter: Igor Guzenko
Assignee: Igor Guzenko
Fix For: 1.16.0
1. Create MapR-DB binary table and put some data using HBase shell:
{code:none}
hbase shell
create '/tmp/bintable','name','address'
put '/tmp/bintable','100','name:first_name','john'
put '/tmp/bintable','100','name:last_name','doe'
put '/tmp/bintable','100','address:city','Newark'
put '/tmp/bintable','100','address:state','nj'
scan '/tmp/bintable'
{code}
2. Drill config: ensure that dfs storage plugin has "connection": "maprfs:///"
and contains format:
{code:java}
"maprdb": {
"type": "maprdb",
"allTextMode": true,
"enablePushdown": false,
"disableCountOptimization": true
}
{code}
3. Check that table can be selected from Drill :
{code:java}
select * from dfs.`/tmp/bintable`;
{code}
4. Create Drill view
{code:java}
create view dfs.tmp.`testview` as select * from dfs.`/tmp/bintable`;
{code}
5. Query the view results into exception:
{code:java}
0: jdbc:drill:> select * from dfs.tmp.`testview`;
Error: SYSTEM ERROR: UnsupportedOperationException: Unable to convert cast
expression CastExpression [input=`address`, type=minor_type: MAP
mode: REQUIRED
] into string.
Please, refer to logs for more information.
[Error Id: 109acd00-7456-4a74-8a17-485f8999000f on node1.cluster.com:31010]
(state=,code=0)
{code}
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