Bugs item #2757104, was opened at 2009-04-13 02:01
Message generated for change (Comment added) made by tsheyar
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Category: PF/compiler
Group: Pathfinder CVS Head
Status: Open
Resolution: Postponed
Priority: 5
Private: No
Submitted By: Peter Boncz (boncz)
>Assigned to: Stefan Manegold (stmane)
Summary: xiraf and other test queries fail  (Y option)

Initial Comment:
XIRAF test queries 5 and 8 fail now

http://wiki.pathfinder-xquery.org/wiki/index.php/XIRAF_testdata

this can be circumvented by disabling a compile option (Y) in compile.c and 
recompiling, but should be fixed.

bug report just as a reminder (can't we at least switch off Y by default 
though??)


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>Comment By: Jan Rittinger (tsheyar)
Date: 2009-09-07 23:39

Message:
Stefan,

do the tests work now?

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Comment By: Stefan Manegold (stmane)
Date: 2009-04-13 11:35

Message:
FYI:

7 of the Xiraf test fail wit the CVS development trunk due to a BAT
propcheck error:
ID: 2668437 "PF runtime: parent step produces not/wrongly sorted result"
(https://sourceforge.net/tracker/?func=detail&aid=2668437&group_id=56967&atid=482468)
(cf.,
http://monetdb.cwi.nl/testing/intern/monetdb/Current/_intern_/Xiraf/.mTests103/index_short.html
http://monetdb.cwi.nl/testing/intern/monetdb/Current/_intern_/Xiraf/.mTests103/Int.64.32.d.1-Fedora8/large-testset/q525.out.00.html
...
http://monetdb.cwi.nl/testing/intern/monetdb/Current/_intern_/Xiraf/.mTests103/GNU.64.64.d.1-Fedora8/large-testset/q538.out.00.html
)

With the Feb2009 release branch, the Xiraf queries work fine,
since I avoided the above mentioned BATprocheck error there (only);
(Cf.,
http://monetdb.cwi.nl/testing/intern/monetdb/Stable/_intern_/Xiraf/.mTests103/index_short.html
)

(ps: Xiraf testing result can only be accessed from within CWI, or with
CWI intraweb access)


----------------------------------------------------------------------

Comment By: Jan Rittinger (tsheyar)
Date: 2009-04-13 10:56

Message:
In both example queries I can see no mistake. Option Y only provides plans
that the physical planner has problems with---the staircase join algorithms
are (unnecessarily) called with unique iter values.

The solution (hopefully) will come soon: a MonetDB specific optimization
that hides part of the job of optimization Y.

----------------------------------------------------------------------

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