support db2/sqlserver some ddl sql

[zycgit]

db2
rename table xxx
create table xxx as xxx with data;
alter table user_table drop address;
alter table abc drop unique xxx;
alter table abc drop foreign key xxx;

[suger-no]

sqlserver
create schema
create schema create table xxxxxx
create schema create view xxxxx
create schema authorization
drop schema

[wenshao]

这种为什么不用一个boolean解决？

[zycgit]

因为还有其它方式，本次只支持了其中一种。如：
create table new_table_name1 as (select * from table1) definition only;
create table new_table_name2 as (select * from table1) with data;
create table new_table_name3 as (select * from table1) WITH no data;