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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