Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Sqlitelogictest crash related to an undefined MAL function #6332

monetdb-team opened this issue Nov 30, 2020 · 0 comments

Sqlitelogictest crash related to an undefined MAL function #6332

monetdb-team opened this issue Nov 30, 2020 · 0 comments


Copy link

@monetdb-team monetdb-team commented Nov 30, 2020

Date: 2017-06-06 10:29:59 +0200
From: @PedroTadim
To: SQL devs <>
Version: -- development
CC: @njnes

Last updated: 2017-07-17 16:07:18 +0200

Comment 25372

Date: 2017-06-06 10:29:59 +0200
From: @PedroTadim

User-Agent: Mozilla/5.0 (X11; Fedora; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/59.0.3071.86 Safari/537.36
Build Identifier:

The mserver crashes after executing two SELECT queries consecutively. The first one throws a MAL exception. Then after executing the second one, the server crashes.

Reproducible: Always

Steps to Reproduce:

  1. CREATE TABLE tab0(col0 INTEGER, col1 INTEGER, col2 INTEGER);
  2. SELECT DISTINCT col1 * + + col1 + + col2 * 0 / + - CAST ( + - col0 AS INTEGER ) AS col1 FROM tab0 cor0;
  3. SELECT ALL + 93 + col0 FROM tab0 AS cor0;

Actual Results:

During the first query, the following error exception is thrown:
TypeException:user.main[19]:'bat.append' undefined in: bat.append(X_24937:bat[:lng],X_24943:bte);

During the second one, the server gets a SIGSEV.

Expected Results:

A empty result set for both SELECT queries.

While running the first SELECT query the following warning is thrown

WARNING To speedup calc./ a bulk operator implementation is needed
X_455:bat[:lng] := mal.multiplex("calc":str,"/":str,0:bte,X_454:bat[:int]);

The bt of the SIGSEV:

0 0x00007ffff4c0e92a in __memset_avx2_erms () from /lib64/
1 0x00007ffff75e8b87 in GDKfree (blk=0x7fffb010fa60) at gdk_utils.c:1745
2 0x00007ffff797c070 in freeInstruction (p=0x7fffb010fa60) at mal_instruction.c:482
3 0x00007ffff79a9946 in MSresetInstructions (mb=0x7fffb00cf2a0, start=1) at mal_session.c:372
4 0x00007fffe8c958c1 in SQLengineIntern (c=0x7fffea35b328, be=0x7fffb00c1b00) at sql_execute.c:717
5 0x00007fffe8c929ea in SQLengine (c=0x7fffea35b328) at sql_scenario.c:1192
6 0x00007ffff79a80b8 in runPhase (c=0x7fffea35b328, phase=4) at mal_scenario.c:517
7 0x00007ffff79a8291 in runScenarioBody (c=0x7fffea35b328) at mal_scenario.c:559
8 0x00007ffff79a839f in runScenario (c=0x7fffea35b328) at mal_scenario.c:579
9 0x00007ffff79a9dd6 in MSserveClient (dummy=0x7fffea35b328) at mal_session.c:448
10 0x00007ffff79a98db in MSscheduleClient (command=0x7fffb00008d0 "0", challenge=0x7fffc46cedf0 "VKaSG5wf", fin=0x7fffb0002980, fout=0x7fffbc002b60) at mal_session.c:339
11 0x00007ffff7a49d19 in doChallenge (data=0x7fffbc0008d0) at mal_mapi.c:188
12 0x00007ffff762d0f1 in thread_starter (arg=0x7fffbc004c50) at gdk_system.c:485
13 0x00007ffff4e8c6ca in start_thread () from /lib64/
14 0x00007ffff4bc6f7f in clone () from /lib64/

Comment 25391

Date: 2017-06-22 14:29:21 +0200
From: MonetDB Mercurial Repository <>

Changeset 3e038283a86f made by Martin van Dinther in the MonetDB repo, refers to this bug.

For complete details, see http//devmonetdborg/hg/MonetDB?cmd=changeset;node=3e038283a86f

Changeset description:

Add test for bug #6332

Comment 25395

Date: 2017-06-28 10:12:32 +0200
From: @njnes

fixed bug in optimizer

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
None yet
Linked pull requests

Successfully merging a pull request may close this issue.

None yet
1 participant