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<div>Hello,</div>
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<div>I have a PostgreSQL 9.1/PostGIS 1.5 database that I am planning to upgrade to PostgreSQL 9.4/PostGIS 2.1 The current upgrade via the “hard method” as referenced in the PostGIS docs is taking around 10-13 minutes after a lot of tweaking to the database
config and data being upgraded. I am evaluating other methods of upgrading to see if I can lessen the amount of downtime. Has anyone used Slony-I to do this type of upgrade (i.e. replicate across versions of PostgreSQL/PostGIS)? The docs say going from
1.5 to 2.1 requires dump/restore via postgis_restore.pl. I assume this perl script is used to handle the special geometry related data/functions – how would this be accomplished via a Slony-I (or any other) upgrade? I am still fairly new to PostGIS and totally
new to Slony-I, so any assistance/input/idea is appreciated. </div>
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<div>Sincerely,</div>
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<div>Andy Yoder</div>
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