Bug 460074

Summary: unacceptable data loss (unconvertability) on upgrading
Product: [Fedora] Fedora Reporter: Frank Ch. Eigler <fche>
Component: postgresqlAssignee: Tom Lane <tgl>
Status: CLOSED DUPLICATE QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: medium    
Version: 9CC: hhorak
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Hardware: All   
OS: Linux   
Fixed In Version: Doc Type: Bug Fix
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Last Closed: 2008-08-25 22:51:48 EDT Type: ---
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Description Frank Ch. Eigler 2008-08-25 21:54:58 EDT
Upon a recent update to fedora 9 that included a bump to postgresql 
(8.3.3-2.fc9), I was shocked to find that the data migration widgets
formerly in the rpm spec file have been disabled.  Now my data is dead
and inaccessible unless I somehow reinstall the previous version of
postgresql by hand, dump the data, update postgresql again, and then

This is unacceptable.

Some possible fixes:
- the automagic rpm data migration script should be brought back
- postgresql should be fixed to migrate its own old data files
- postgresql rpm should forbid updating itself -- probably
  also possible with a simple rpm spec hack %pre_inst
Comment 1 Tom Lane 2008-08-25 22:51:48 EDT
AFAIK there have never been any "data migration widgets" in any postgres RPM shipped by Red Hat.  I know some other distros have tried to handle that automagically, but it generally doesn't work very well --- running arbitrary code in a scriptlet is a bad idea.

Upstream is aware that upgrade-in-place would be a nice thing to have, but it's a hard problem...

*** This bug has been marked as a duplicate of bug 398221 ***