Krystal created DRILL-862:
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Summary: Select against hbase tables with empty number values
fails
Key: DRILL-862
URL: https://issues.apache.org/jira/browse/DRILL-862
Project: Apache Drill
Issue Type: Bug
Components: Storage - HBase
Reporter: Krystal
git.commit.id.abbrev=01bf849
I have a hbase table that contains empty values for some columns/rows. This
was due to importing data from a file into hbase. For example a get of a row
containing empty age value in hbase:
hbase(main):003:0> get 'voterspaces', '17'
COLUMN CELL
fourcf:create_date timestamp=1401380832939, value=2014-06-04 06:49:06
onecf:name timestamp=1401380832939, value=alice garcia
threecf:contributions timestamp=1401380832939, value=468.51
threecf:voterzone timestamp=1401380832939, value=18555
twocf:age timestamp=1401380832939, value=
twocf:registration timestamp=1401380832939, value=republican
The following query from drill fails due to empty values instead of null:
select cast(row_key as integer) voter_id, convert_from(onecf['name'], 'UTF8')
name, cast(twocf['age'] as integer) age, cast(twocf['registration'] as
varchar(20)) registration, cast(threecf['contributions'] as decimal(6,2))
contributions, cast(threecf['voterzone'] as integer)
voterzone,cast(fourcf['create_date'] as timestamp) create_date from voterspaces
where row_key < 20;
message: "Failure while running fragment. < NumberFormatException:[ ]"
>From hive, running the same query against a hive table that is mapped to the
>same hbase table succeeded. If this how it expected to work in drill, then
>we should to document it.
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