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Segfault in rel_optimizer (sqlsmith) #6217

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

Segfault in rel_optimizer (sqlsmith) #6217

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

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

Date: 2017-02-16 17:47:12 +0100
From: @mlkersten
To: SQL devs <>
Version: 11.17.13 (Jan2014-SP1)
CC: @njnes

Last updated: 2017-03-03 10:24:08 +0100

Comment 25030

Date: 2017-02-16 17:47:12 +0100
From: @mlkersten

User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:51.0) Gecko/20100101 Firefox/51.0
Build Identifier:

Found by sqlsmith

0x00007f688a1b51ce in rewrite (sql=0x7f685c12bb70,
rel=0x7f685c2b57b0,
rewriter=0x7f688a1a5281 <rel_reduce_groupby_exps>,
has_changes=0x7f6870aca8e8)
at /export/scratch1/home/mk/default//package/sql/server/rel_optimizer.c:8600
2 0x00007f688a1b50f8 in rewrite (sql=0x7f685c12bb70,
rel=0x7f685c2b8c80,
rewriter=0x7f688a1a5281 <rel_reduce_groupby_exps>,
has_changes=0x7f6870aca8e8)
at /export/scratch1/home/mk/default//package/sql/server/rel_optimizer.c:8586
3 0x00007f688a1b50f8 in rewrite (sql=0x7f685c12bb70,

Reproducible: Always

Steps to Reproduce:

select
ref_2.name as c0,
ref_2.name as c1,
ref_2.condition as c2,
90 as c3,
ref_2.condition as c4,
ref_2.id as c5
from
sys.triggers as ref_2
where 24 is NULL;

Comment 25033

Date: 2017-02-19 14:00:34 +0100
From: @njnes

fixed by creating the missing list first.

Comment 25036

Date: 2017-02-19 14:05:27 +0100
From: MonetDB Mercurial Repository <>

Changeset 53b86a794d0c made by Niels Nes niels@cwi.nl in the MonetDB repo, refers to this bug.

For complete details, see http//devmonetdborg/hg/MonetDB?cmd=changeset;node=53b86a794d0c

Changeset description:

add tests for bugs 6216 and 6217

Comment 25106

Date: 2017-03-03 10:24:08 +0100
From: @sjoerdmullender

Dec2016-SP2 has been released, incorporating the fix.

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