[IMPALA-1938] JDBC driver rewrites result of query with NULLs

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Invalid
• Affects Version/s: Impala 2.1.1, Impala 2.3.0
• Component/s: Clients
• Labels: correctness downgraded jdbc
• Target Version: Impala 2.10.0
• Assignee: Syed A. Hashmi
• Reporter: Denys Lamanov
• Created: 06/Apr/15 11:35
• Updated: 23/Aug/17 19:34
• Resolved: 23/Aug/17 19:34

Description

select distinct year(regtime) from dwh.DimUser

JDBC driver > 2.5.5:

expr_0
(null)
(null)
(null)
(null)
(null)
(null)

JDBC driver 2.5.5 or ( > 2.5.5 and ?UseNativeQuery=1):

year(regtime)
2013
2011
2012
(null)
2015
2014