#4287: FloatField will not handle infinity values
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Reporter: oBeattie | Owner: nobody
(oliver@… | Status: new
Type: Bug | Component: Database layer
Milestone: | (models, ORM)
Version: SVN | Severity: Normal
Resolution: | Keywords: infinity, mysql,
Triage Stage: Accepted | float
Needs documentation: 0 | Has patch: 0
Patch needs improvement: 0 | Needs tests: 0
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Comment (by calmez):
I looked at this with django from trunk and could reproduce the bug
(working in sqlite3, not working in mysql).[[BR]]
I had a look at mysql an found out that it is not possible to store
infinity values in DOUBLE columns because "Standard SQL's FLOAT (not just
MySQL's) is *not* an IEEE754 float" [#ref1 (1)].[[BR]]
I patched it by using the smallest (-2147483648) and the biggest
(2147483647) float value as -inf and inf.
Would it be okay to fix that bug that way?
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[=#ref1 (1)] http://forums.mysql.com/read.php?39,220571,220573#msg-220573
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Ticket URL: <http://code.djangoproject.com/ticket/4287#comment:4>
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