[jira] [Created] (DRILL-4425) Handle blank column names in Hbase in CONVERT_FROM

["Saurabh Nigam (JIRA)" <ji...@apache.org>]

Saurabh Nigam created DRILL-4425:
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             Summary: Handle blank column names in Hbase in CONVERT_FROM
                 Key: DRILL-4425
                 URL: https://issues.apache.org/jira/browse/DRILL-4425
             Project: Apache Drill
          Issue Type: New Feature
          Components: Storage - HBase
    Affects Versions: 1.3.0
         Environment: Apache Drill 1.3 on HortonWorks HDP VM 2.1
            Reporter: Saurabh Nigam
            Priority: Critical


Hbase table may contain blank column names & blank column family names. Drill needs to handle such situation.

I faced the issue when I had a column with blank column name in my Hbase Table. To reproduce it :
-Create a column without any name in Hbase
-Try to access it via Drill console
-Try to use CONVERT_FROM function to convert that data from Base64 encoding to make it readable. You wont be able to convert blank column because you cannot use blank in your query after a dot.

Something like  this
SELECT CONVERT_FROM(students. , 'UTF8') AS zipcode 
 FROM students;
Where column name is blank



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