Date: 2013-12-10 10:34:03 +0100
From: @arjenderijke
To: SQL devs <>
Version: -- development
CC: @njnes

Last updated: 2014-02-20 15:03:08 +0100

Comment 19404

Date: 2013-12-10 10:34:03 +0100
From: @arjenderijke

User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.16) Gecko/20121207 Iceweasel/3.5.16 (like Firefox/3.5.16)
Build Identifier:

A query that has a number of nested concat statements causes mserver to crash.

Reproducible: Always

Steps to Reproduce:

1. select concat(concat(concat(...... , ), ...) from table

Actual Results:

Connection terminated
In merovingian.log you see:
2013-12-10 10:27:51 MSG merovingian[17187]: database 'demo' (17208) was killed by signal SIGSEGV

Comment 19406

Date: 2013-12-10 13:01:53 +0100
From: MonetDB Mercurial Repository <>

Changeset 067195f12153 made by Arjen de Rijke arjen.de.rijke@cwi.nl in the MonetDB repo, refers to this bug.

For complete details, see http//devmonetdborg/hg/MonetDB?cmd=changeset;node=067195f12153

Changeset description:

add test for bug #3408

Comment 19410

Date: 2013-12-11 12:12:07 +0100
From: @njnes

Fixed by initializing the stacked variables

Comment 19623

Date: 2014-02-20 15:03:08 +0100
From: @sjoerdmullender

Jan2014 has been released.