[PHOENIX-3013] TO_CHAR fails to handle indexed null value

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 4.8.0
• Assignee: Junegunn Choi
• Reporter: Junegunn Choi
• Created: 21/Jun/16 04:15
• Updated: 11/Aug/16 08:28
• Resolved: 22/Jun/16 01:37

Description

Steps to reproduce

create table t (id integer primary key, ts1 timestamp, ts2 timestamp);
create index t_ts2_idx on t (ts2);
upsert into t values (1, null, null);

-- OK
select to_char(ts1) from t;

-- java.lang.IllegalArgumentException: Unknown class: <null>
select to_char(ts2) from t;