[DRILL-4346] NumberFormatException when casting empty string to int in hbase/maprdb

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.2.0
• Component/s: Functions - Drill
• Assignee: Vitalii Diravka
• Reporter: Vitalii Diravka
• Created: 03/Feb/16 12:37
• Updated: 26/Feb/16 21:36
• Resolved: 26/Feb/16 21:36

Description

Queries to null values in HBase with no data when casting to Integer results in NumberFormatException:

Data 

row1,1,2 
row2,,4 
row3,5,6 
row4,7,8 

Create Table 

$ maprcli table create -path /user/cmatta/projects/cmatta_test 
$ maprcli table cf create -path /user/cmatta/projects/cmatta_test -cfname a 

Load into Hbase table: 

hbase org.apache.hadoop.hbase.mapreduce.ImportTsv -Dimporttsv.separator=',' -Dimporttsv.columns=HBASE_ROW_KEY,a:c1,a:c2 /user/cmatta/projects/cmatta_test maprfs:///user/cmatta/projects/testdata_hbase_null 

0: jdbc:drill:> select cast(x.`row_key` as varchar(128)) as `row_key`, CAST(x.`a`.`c1` as INTEGER) from maprfs.cmatta.`cmatta_test` x; 
Error: SYSTEM ERROR: NumberFormatException: 

Fragment 0:0 

[Error Id: 05a0e5ed-d830-4926-a442-569c9d70d0b4 on se-node11.se.lab:31010] (state=,code=0)