Make LC_COLLATE and LC_CTYPE database-level settings. Collation and

Heikki Linnakangas <heikki.linnakangas@iki.fi>

Commit: 61d967498802ab86d8897cb3c61740d7e9d712f6
Author: Heikki Linnakangas <heikki.linnakangas@iki.fi>
Date: 2008-09-23T09:20:39Z
Releases: 8.4.0
Make LC_COLLATE and LC_CTYPE database-level settings. Collation and
ctype are now more like encoding, stored in new datcollate and datctype
columns in pg_database.

This is a stripped-down version of Radek Strnad's patch, with further
changes by me.

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