There is few cluster which is using fk server and postgis.
For the upgrade this servers, I need the drop extension and then re-create them. Just in case if I do that with pg_dump, am i still have to re-create postgis and fk servers?
Out of curiosity, what's "fk"? It can't be "FOREIGN KEY", can it?
I didin't want waste time before the do that so I need your advice.
I doubt it, since pg_dump generates all of CREATE (and ALTER) statements required for a database, and pg_restore then runs them.
Thus, if (new) postgis and fk packages are installed on the new server, pg_restore will CREATE EXTENSION with the new version of postgis.
Of course, there might be some hard-coded extension version numbers in the dump. Run "pg_dump --schema-only $DB >> ${DB}.sql" and then scan it for postgis references to "see what you see". Maybe even run that no-data script on the new server, and see what postgis and fk versions you get.
