Bugs item #2607045, was opened at 2009-02-16 22:54
Message generated for change (Comment added) made by stmane
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Category: SQL/Core
Group: SQL "stable"
>Status: Closed
Resolution: Fixed
Priority: 6
Private: No
Submitted By: Romulo Goncalves (romulog)
Assigned to: Romulo Goncalves (romulog)
Summary: SQL: set history and drop table
Initial Comment:
The following SQL code crashes M5-SQL
set history='true';
select id from tables where id > 0;
create table t1 (id int);
drop table t1;
mserver debug info:
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fffe0f05950 (LWP 5796)]
0x00000038308830b3 in memset () from /lib64/libc.so.6
(gdb) up
#1 0x00007ffff771eea1 in GDKfree (blk=0x7fffe5600ca4)
at /ufs/goncalve/MonetDB/stable/MonetDB/src/gdk/gdk_utils.mx:1135
1135 DEADBEEFCHK memset(s, 0xDB, size - (8 + (size & 1)));
/* 0xDeadBeef */
(gdb) p size
$1 = 28549272340070512
(gdb) p s
$2 = (ssize_t *) 0x7fffe5600ca4
(gdb) p 0xDB
$3 = 219
(gdb) up
#2 0x0000000000c8ace4 in clearVariable (mb=0x7fffe0664fa8, varid=98)
at /ufs/goncalve/MonetDB/stable/MonetDB5/src/mal/mal_instruction.mx:1557
1557 GDKfree(v->name);
(gdb) p v->name
$4 = 0x7fffe5600ca4 "ctime"
(gdb)
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>Comment By: Stefan Manegold (stmane)
Date: 2009-08-17 14:18
Message:
new output has been approved by Niels.
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Comment By: Stefan Manegold (stmane)
Date: 2009-08-14 13:55
Message:
tagged subject
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Comment By: Stefan Manegold (stmane)
Date: 2009-08-13 19:20
Message:
re-opened since the test produces different output since checkins on
2009/07/25 and/or 2009/07/26 on the CVS HEAD;
cf.,
http://monetdb.cwi.nl/testing/projects/monetdb/Stable/sql/.mTests103/GNU.64.64.d.1-Fedora10/src_test_BugTracker-2009/set_history_and_drop_table.SF-2607045.out.00.html
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Comment By: Niels Nes (nielsnes)
Date: 2009-02-20 23:38
Message:
works now. was a bug in m5 opt_history. variable names need to be allocated
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Comment By: Romulo Goncalves (romulog)
Date: 2009-02-16 23:38
Message:
test added to
sql/src/tests/BugTracker-2009/Tests/set_history_and_drop_table.SF-2607045.SQL.py
with additional files:
sql/src/tests/BugTracker-2009/set_history_and_drop_table.SF-2607045.sql
sql/src/tests/BugTracker-2009/drop_history.sql
----------------------------------------------------------------------
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