From: Paul Ramsey <pramsey@cleverelephant.ca>
Date: Sun, 29 Jul 2001 17:18:47 +0000 (+0000)
Subject: Added section on upgrading.
X-Git-Tag: pgis_0_6_0~30
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=51ce638c151f5a1d5f34c576826924b658d0cb36;p=postgis

Added section on upgrading.


git-svn-id: http://svn.osgeo.org/postgis/trunk@42 b70326c6-7e19-0410-871a-916f4a2858ee
---

diff --git a/README.postgis b/README.postgis
index 4c5b6508c..b34dccd20 100644
--- a/README.postgis
+++ b/README.postgis
@@ -47,6 +47,22 @@ To run some regression tests, use 'make test'. The results will be output
 to tests/output.log and compared to tests/expected.log.
 
 
+UPGRADING:
+
+Upgrading PostGIS can be tricky, because the underlying C libraries which 
+support the object types and geometries may have changed between versions.
+To avoid problems when upgrading, you will have to dump all the tables
+in your database, destroy the database, create a new one, upload the
+new postgis.sql file, then upload your database dump:
+
+        pg_dump -t "*" -f dumpfile.sql yourdatabase
+        dropdb yourdatabase
+        createdb yourdatabase
+        psql -f postgis.sql -d yourdatabase
+        psql -f dumpfile.sql -d yourdatabase
+	vacuumdb -z yourdatabase
+
+
 USAGE:
 
 Try the following example SQL statements: