#11487: Oracle encoding bug when saving more than 4000 characters
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Reporter: mdpetry | Owner: nobody
Status: new | Milestone: 1.1
Component: Database layer (models, ORM) | Version: SVN
Resolution: | Keywords: oracle
database
Stage: Accepted | Has_patch: 1
Needs_docs: 0 | Needs_tests: 0
Needs_better_patch: 0 |
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Comment (by jbronn):
Replying to [comment:17 ikelly]:
> Thanks, rafax. I've actually tested with the same set of versions and
not reproduced the bug, so there must be something more to it. I suspect
it has something to do with the database encodings.
>
I was able to reproduce the bug using Oracle 11, Python 2.5.4, and
cx_Oracle 4.4.1. However, when using cx_Oracle 5.0.1 it's not a problem.
I'm doing this on Windows, so this may be why I can reproduce.
> About the test case, it appears to be saving a string of exactly 4000
characters, not more than 4000 characters. Is that intentional? Also,
does it still replicate if you use an NCLOB column instead of a CLOB
column? Since that is the default for Django, that is what we should be
testing.
I thought that at first, but if you evaluate `len(''.join([unicode(x) for
x in xrange(4000)]))` you see it is really 14,890 characters long. I also
updated the test to use a `NCLOB` column, and the test case still fails
without the patch.
Ian, look over my patch and make sure it doesn't break anything else --
I've run the full test suite but I want a second run on a different system
to make sure there are no unintended side-effects.
--
Ticket URL: <http://code.djangoproject.com/ticket/11487#comment:18>
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