[DERBY-6565] ROW_NUMBER function throws NullPointerException in UPDATE statement

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 10.10.2.0
• Fix Version/s: 10.10.2.1, 10.11.1.1, 10.12.1.1
• Component/s: SQL
• Assignee: Dag H. Wanvik
• Reporter: Knut Anders Hatlen
• Created: 06/May/14 11:27
• Updated: 09/Sep/16 09:52
• Resolved: 10/Oct/14 18:22

Description

A NullPointerException is raised with this (possibly illegal?) UPDATE statement:

ij version 10.10
ij> connect 'jdbc:derby:memory:db;create=true';
ij> create table t(x int);
0 rows inserted/updated/deleted
ij> insert into t values 1;
1 row inserted/updated/deleted
ij> update t set x = row_number() over ();
ERROR XJ001: Java exception: ': java.lang.NullPointerException'.

Issue Links

• is related to: DERBY-6689 Assert failure/NPE when using ROW_NUMBER in MERGE ... INSERT
• relates to: DERBY-6759 Derby 10.10 backport issue (fall 2014)