ORA-7445 [KKMUPD()+nnnn] when running a Merge command which uses an Outer Join (Doc ID 1154884.1)

Last updated on NOVEMBER 28, 2016

Applies to:

Oracle Database - Enterprise Edition - Version 10.2.0.1 to 10.2.0.5 [Release 10.2]
Information in this document applies to any platform.

Symptoms

eg.
ksedmp: internal or fatal error
ORA-07445: exception encountered: core dump [kkmupd()+2288] [SIGSEGV]

The following test case will illustrated this:
TEST CASE:
----------
-- Create tables
create table a (x int, y int);
create table b (x int);
create table c (x int, y int);

-- Execute Merge command which terminates due to ORA-7445
merge into c
using (
with foo as(
select x,y from a
)
select foo.y
from foo full outer join b
on foo.x = b.x
) data
on (c.x = data.y)
when matched then
update set c.y = 0
/

TRACE FILE

ksedmp: internal or fatal error
ORA-07445: exception encountered: core dump [kkmupd()+2288] [SIGSEGV]

STACK TRACE:
------------
kkmupd kkmups opiprsdml opiSem opiDeferredSem opitca kksFullTypeCheck ...



Cause

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