Installing pgpool-regclass

If you are using PostgreSQL 9.4 or later, you can skip this section.

If you are using PostgreSQL 8.0 to PostgreSQL 9.3, installing pgpool_regclass function on all PostgreSQL to be accessed by Pgpool-II is strongly recommended, as it is used internally by Pgpool-II . Without this, handling of duplicate table names in different schema might cause trouble (temporary tables aren't a problem). If you are using PostgreSQL 9.4 or later, installing pgpool_regclass is not necessary since an equivalent ( to_regclass ) is included in the PostgreSQL core.

$ cd pgpool-II-x.x.x/src/sql/pgpool-regclass
$ make
$ make install
      

After this:

$ psql template1
=# CREATE EXTENSION pgpool_regclass;
      

or

$ psql -f pgpool-regclass.sql template1
      

Executing CREATE EXTENSION or pgpool-regclass.sql should be performed on every databases accessed via Pgpool-II . However, you do not need to do this for a database created after the execution of CREATE EXTENSION or psql -f pgpool-regclass.sql template1 , as this template database will be cloned to create new databases.