Bugs item #2031040, was opened at 2008-07-29 08:28
Message generated for change (Comment added) made by stmane
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Category: Tests
Group: MonetDB4 CVS Head
>Status: Closed
>Resolution: Fixed
Priority: 5
Private: No
Submitted By: Stefan Manegold (stmane)
>Assigned to: Stefan Manegold (stmane)
Summary: M4: XQuery & SQL tests assert in CMDbulk_rotate_xor_hash()

Initial Comment:
With the new overflow checks for down-casts, several tests now fail with

.../MonetDB4/src/modules/plain/mkey.mx:466: CMDbulk_rotate_xor_hash: Assertion 
`val <= 2147483647' failed.

Cf.,
http://monetdb.cwi.nl/testing/projects/monetdb/Current/pathfinder/.mTests103/GNU.64.64.d.1-Fedora8/tests_W3C_use_cases_XQ_NS/Q7.err.00.html
http://monetdb.cwi.nl/testing/projects/monetdb/Current/sql/.mTests4103/GNU.64.64.d.1-Fedora8/src_test_VOC/VOC.err.00.html


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>Comment By: Stefan Manegold (stmane)
Date: 2008-07-30 11:20

Message:
Logged In: YES 
user_id=572415
Originator: YES

fixed:
instead of triggering an assertion when 64-bit hash values are shrunk to
32-bit
(or silently ignoring the top 32 bits as we used to do before),
we now XOR (^) the higher and lower 32 bit of a 64-bit hash value to get a
32-bit hash values
(just as we do in various other places).


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