When attempting to create the required functions and extensions for the MySQL FDW, I get the following errors:
dbname=# CREATE FUNCTION mysql_fdw_handler()
RETURNS fdw_handler
AS '$libdir/mysql_fdw'
LANGUAGE C STRICT;
ERROR: could not access file "$libdir/mysql_fdw": No such file or directory
dbname=# CREATE EXTENSION mysql_fdw;
ERROR: could not open extension control file "/usr/pgsql-9.4/share/extension/mysql_fdw.control": No such file or directory
What needs to be installed for this to work?