Bugs item #1747068, was opened at 2007-07-03 14:31
Message generated for change (Settings changed) made by boncz
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Category: PF general
Group: (zombie: Pathfinder 0.18)
>Status: Closed
Resolution: None
Priority: 7
Private: No
Submitted By: Peter Boncz (boncz)
Assigned to: Sjoerd Mullender (sjoerd)
Summary: XQ: windows de-install should warn and empty bat/ dirs

Initial Comment:
on windows, the MonetDB dbfarm is  located in:

c:\Documents and Settings\..user..\Application Data\MonetDB4 

when MonetDB is deinstalled, this directory is not emptied or moved away. When 
a user installs a new MonetDB version, the net effect is that it starts using 
the repository left there by the old MonetDB!
This can cause all kinds of nasty (hard to understand/reproduce bugs) as the 
logical database format may change version after version.

it also causes confusion with 64-bits windows. A 64-bits windows server exits 
immediately with an error upon seeing the 32-bits repo. The CMD windows closes 
so quickly that this error is illegible. The user (me too) just thinks the 
64-bits product does not work at all; ie that it crashed.

my suggested solution is to remove the old repositories at *deinstall* time. 
For me, removing would only entail recursively removing the contents of the 
dbfarm/*/bat/* directories. The deinstaller  should tell the user that certain 
dbfarm subdirs (repositories) are going to be thrown away, and offer a Cancel 
button with the suggestion to start MonetDB/XQuery, use the admin console to 
backup his/her databases.

Please do not remove the dbfarm/* directories, because these backups are found 
in the dbfarm/*/xml/ subdir. 

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