Bugs item #1981779, was opened at 2008-06-02 09:29
Message generated for change (Comment added) made by boncz
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Category: PF/compiler
Group: Pathfinder "stable"
>Status: Closed
Resolution: None
Priority: 6
Private: No
Submitted By: Stefan Manegold (stmane)
Assigned to: Peter Boncz (boncz)
Summary: PF/alg: typeswitch tests fail: "aborted too deep recursion"

Initial Comment:
With the Algebra back-end, some typeswitch tests fail with

!fatal error: aborted too deep recursion

http://monetdb.cwi.nl/testing/projects/monetdb/Stable/pathfinder/.mTestsG103/GNU.64.64.d-Fedora8/tests_XQuery/typeswitch3.err.00.html
http://monetdb.cwi.nl/testing/projects/monetdb/Stable/pathfinder/.mTestsG103/GNU.64.64.d-Fedora8/tests_XQuery/typeswitch4.err.00.html



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>Comment By: Peter Boncz (boncz)
Date: 2009-04-07 10:30

Message:
this is correct behavior AFAIC.

the recursion fence has to draw a line somewhere.

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Comment By: Stefan Manegold (stmane)
Date: 2009-02-14 18:10

Message:
The problem has "disappeared" from all platforms except on OpenSolaris x86
with GNU gcc:

http://monetdb.cwi.nl/testing/projects/monetdb/Stable/pathfinder/.mTests103/GNU.32.32.d.1-SunOS5.11/tests_XQuery/typeswitch3.err.00.html
http://monetdb.cwi.nl/testing/projects/monetdb/Stable/pathfinder/.mTests103/GNU.32.32.d.1-SunOS5.11/tests_XQuery/typeswitch4.err.00.html


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Comment By: Jan Rittinger (tsheyar)
Date: 2008-06-02 16:18

Message:
Logged In: YES 
user_id=993208
Originator: NO

The resulting query plan is quite big. To successfully complete the MIL
generation a recursion depth of 425 is required for these queries.

Re-assigning to the creator of PFrecursion_fence(): Peter.

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You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=482468&aid=1981779&group_id=56967

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