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?