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SQL query kills the mserver5 (Segmentation fault) #3490

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

SQL query kills the mserver5 (Segmentation fault) #3490

monetdb-team opened this issue Nov 30, 2020 · 0 comments
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bug Something isn't working major SQL

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@monetdb-team
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Date: 2014-06-06 17:33:30 +0200
From: Martin van Dinther <<martin.van.dinther>>
To: SQL devs <>
Version: 11.17.17 (Jan2014-SP2)
CC: @njnes

Last updated: 2014-10-31 14:13:59 +0100

Comment 19832

Date: 2014-06-06 17:33:30 +0200
From: Martin van Dinther <<martin.van.dinther>>

User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:29.0) Gecko/20100101 Firefox/29.0
Build Identifier:

Executing SQL query:
select * from "dependencies_tables_on_views"
kills the mserver5 (Segmentation fault)

Reproducible: Always

Steps to Reproduce:

  1. start mserver5
  2. start SQL Frontend (I tested via SQuirreL and mclient), connect to running mserver5
  3. Execute SQL query:
    select * from "dependencies_tables_on_views"

Actual Results:

bash-4.2$ /ufs/dinther/MonetDB201405/bin/mserver5 -d10
builtin opt gdk_dbpath = /ufs/dinther/MonetDB201405/var/monetdb5/dbfarm/demo
builtin opt gdk_debug = 0
builtin opt gdk_vmtrim = no
builtin opt monet_prompt = >
builtin opt monet_daemon = no
builtin opt mapi_port = 50000
builtin opt mapi_open = false
builtin opt mapi_autosense = false
builtin opt sql_optimizer = default_pipe
builtin opt sql_debug = 0
MonetDB 5 server v11.17.15 "Jan2014-SP2"
Serving database 'demo', using 8 threads
Compiled for x86_64-unknown-linux-gnu/64bit with 64bit OIDs dynamically linked
Found 15.356 GiB available main-memory.
Copyright (c) 1993-July 2008 CWI.
Copyright (c) August 2008-2014 MonetDB B.V., all rights reserved
Visit http://www.monetdb.org/ for further information
Listening for connection requests on mapi:monetdb://127.0.0.1:50000/
MonetDB/GIS module loaded
MonetDB/JAQL module loaded
MonetDB/SQL module loaded

Bulk operator required for str.stringleft
Bulk operator required for str.stringleft
Segmentation fault
bash-4.2$

Expected Results:

no crashed server
and
a result of the query

The table "dependencies_tables_on_views" is listed as one of the (internal) system tables:

Execute:
select * from "_tables" where name = 'dependencies_tables_on_views'
this returns 1 row

Execute:
select * from "_columns" where table_id in (select id from "_tables" where name = 'dependencies_tables_on_views')
this returns 3 rows

Comment 19889

Date: 2014-07-09 13:20:54 +0200
From: @njnes

these tables do not longer exist in the default branch. This type of tables existed for handling table return type, which isn't stored in the _tables table
anymore. So fixed for the to be created feature release branch

Comment 20348

Date: 2014-10-31 14:13:59 +0100
From: @sjoerdmullender

Oct2014 has been released.

@monetdb-team monetdb-team added bug Something isn't working major SQL labels Nov 30, 2020
@sjoerdmullender sjoerdmullender added this to the Ancient Release milestone Feb 7, 2022
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