could not open extension control file "/usr/local/pgsql/share/extension/file_fdw.control"

postgres 创建 extension的时候报错，网上搜了好久终于找到了
postgres=# create extension file_fdw;
error:  could not open extension control file "/usr/local/pgsql/share/extension/file_fdw.control": no such file or directory

2.这个扩展默认没有按照，需要手动安装：
cd /usr/local/pgsql/contrib/file_fdw
 
make
make install

3.再次执行：create extension file_fdw;