扩展存在,但uuid_generate_v4失败
在Amazon EC2 RDS Postgresql中: => SHOW rds.extensions; rds.extensions -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- btree_gin,btree_gist,chkpass,citext,cube,dblink,dict_int,dict_xsyn,earthdistance,fuzzystrmatch,hstore,intagg,intarray,isn,ltree,pgcrypto,pgrowlocks,pg_trgm,plperl,plpgsql,pltcl,postgis,postgis_tiger_geocoder,postgis_topology,sslinfo,tablefunc,tsearch2,unaccent,uuid-ossp (1 row) 如您所见,uuid-ossp扩展确实存在。但是,当我调用函数generation时uuid_v4,它失败了: CREATE TABLE my_table ( id uuid DEFAULT uuid_generate_v4() NOT NULL, name character varying(32) NOT NULL, ); 这怎么了