RDS for PostgreSQL中目前支持哪些插件？如何创建和管理插件？

目前支持的插件如下:
plpgsql,pg_stat_statements,btree_gin,btree_gist,chkpass,citext,cube,dblink,dict_int,earthdistance,hstore,intagg,intarray,isn,ltree,pgcrypto,pgrowlocks,pg_prewarm,pg_trgm,postgres_fdw,sslinfo,tablefunc,tsearch2,unaccent,postgis,postgis_topology,fuzzystrmatch,postgis_tiger_geocoder,plperl,pltcl,plv8,plls,plcoffee,"uuid-ossp",zhparser,pgrouting,rdkit

插件创建方法：
Command: CREATE EXTENSION
Description: install an extension
Syntax:
CREATE EXTENSION [ IF NOT EXISTS ] extension_name

[ WITH ] [ SCHEMA schema_name ]
         [ VERSION version ]
         [ FROM old_version ]

例如postgis插件创建:
CREATE EXTENSION postgis;
CREATE EXTENSION postgis_topology;
CREATE EXTENSION fuzzystrmatch;
CREATE EXTENSION postgis_tiger_geocoder;