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algebra.project(0@0,bat) fails at propcheck #3045

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

algebra.project(0@0,bat) fails at propcheck #3045

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

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

Date: 2012-02-28 12:41:39 +0100
From: @grobian
To: MonetDB5 devs <>
Version: 11.7.5 (Dec2011) [obsolete]
CC: @yzchang

Last updated: 2012-11-27 13:59:02 +0100

Comment 17020

Date: 2012-02-28 12:41:39 +0100
From: @grobian

The following piece of code produces a failure when run with --debug=10 (propcheck):

b := bat.new(:oid, :bte);
b := bat.append(b, 100:bte);
b := bat.append(b, 105:bte);
b := bat.append(b, 100:bte);
b := bat.append(b, 105:bte);
b := bat.append(b, 115:bte);
io.print(b);
c := algebra.project(0@0,b);
io.print(c);

It results in:

h t name
void bte type

[ 0@0, 100 ]
[ 1@0, 105 ]
[ 2@0, 100 ]
[ 3@0, 105 ]
[ 4@0, 115 ]
!GDKerror:!ERROR: BATpropcheck: BAT tmpr_1136(-606)[bte,oid] with 5 tuples was incorrectly marked sorted!
!ERROR: BATpropcheck: BAT tmpr_1136(-606)[bte,oid] with 5 tuples remains marked radix-clustered on 32 bits; not checked!

Comment 17021

Date: 2012-02-28 13:25:55 +0100
From: @sjoerdmullender

Changeset e06f9ca778bc made by Sjoerd Mullender sjoerd@acm.org in the MonetDB repo, refers to this bug.

For complete details, see http//devmonetdborg/hg/MonetDB?cmd=changeset;node=e06f9ca778bc

Changeset description:

Reuse implementation in GDK for algebra.project + add test for bug #3045.
algebra.project does basically what BATconst does, so use that to do
the work.
Thid also fixes bug #3045.

Comment 17022

Date: 2012-02-28 13:29:03 +0100
From: @sjoerdmullender

Fixed.

Comment 17100

Date: 2012-03-16 14:56:54 +0100
From: @grobian

Released in Dec2011-SP2

Comment 18063

Date: 2012-11-27 13:59:02 +0100
From: @yzchang

Test already added in monetdb5/tests/BugTracker/Tests/algebra_project.Bug-3045

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