drop table test20_keygen
go
drop table test20_keygen_ext
go
drop table test20_keygen_string
go
drop table test20_keygen_ext_string
go
drop table test20_uuid
go
drop table test20_uuid_ext
go
drop table test20_identity
go
drop table test20_identity_ext
go
drop table test20_seqtable
go