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Nested SELECT with EXISTS causes the server to crash #2959

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

Nested SELECT with EXISTS causes the server to crash #2959

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

Date: 2011-12-27 20:32:20 +0100
From: Alfred Nordman <<alfred.nordman>>
To: SQL devs <>
Version: 11.5.9 (Aug2011-SP3) [obsolete]
CC: @njnes

Last updated: 2012-01-26 15:32:01 +0100

Comment 16701

Date: 2011-12-27 20:32:20 +0100
From: Alfred Nordman <<alfred.nordman>>

The following query crashes the server:

SELECT 123 AS dummy1 FROM tables n WHERE EXISTS ( SELECT 456 AS dummy2 FROM (SELECT * FROM columns) nnn WHERE n.id > 0 );

Comment 16726

Date: 2012-01-04 12:42:19 +0100
From: @njnes

fixed in Dec2011 (test added to exists-select.Bug-2933.sql)

Comment 16727

Date: 2012-01-04 12:51:41 +0100
From: @njnes

Changeset f6bfa6df48ad 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=f6bfa6df48ad

Changeset description:

added test for Bug #2959

Comment 16824

Date: 2012-01-26 15:32:01 +0100
From: @sjoerdmullender

The Dec2011 version has been release, so declaring this bug as FIXED.

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