功能描述
创建一个新用户组。
注意事项
CREATE GROUP是CREATE ROLE的别名，非SQL标准语法，不推荐使用，建议用户直接使用CREATE ROLE替代。
语法格式
CREATE GROUP group_name [ [ WITH ] option [ ... ] ]
[ ENCRYPTED | UNENCRYPTED ] { PASSWORD | IDENTIFIED BY } { 'password' | DISABLE };
其中可选项action子句语法为：
where option can be:
{SYSADMIN | NOSYSADMIN}
| {MONADMIN | NOMONADMIN}
| {OPRADMIN | NOOPRADMIN}
| {POLADMIN | NOPOLADMIN}
| {AUDITADMIN | NOAUDITADMIN}
| {CREATEDB | NOCREATEDB}
| {USEFT | NOUSEFT}
| {CREATEROLE | NOCREATEROLE}
| {INHERIT | NOINHERIT}
| {LOGIN | NOLOGIN}
| {REPLICATION | NOREPLICATION}
| {INDEPENDENT | NOINDEPENDENT}
| {VCADMIN | NOVCADMIN}
| CONNECTION LIMIT connlimit
| VALID BEGIN 'timestamp'
| VALID UNTIL 'timestamp'
| RESOURCE POOL 'respool'
| USER GROUP 'groupuser'
| PERM SPACE 'spacelimit'
| NODE GROUP logic_group_name
| IN ROLE role_name [, ...]
| IN GROUP role_name [, ...]
| ROLE role_name [, ...]
| ADMIN role_name [, ...]
| USER role_name [, ...]
| SYSID uid
| DEFAULT TABLESPACE tablespace_name
| PROFILE DEFAULT
| PROFILE profile_name
| PGUSER
参数说明
请参考CREATE ROLE的参数说明。
