drop table employee;
drop table department;
drop table address;
drop table comp_key_employee;
drop table comp_key_department;
drop table comp_key_address;

drop table bigint_table;
drop table bigserial_table;
drop table bit_table;
drop table bit_varying_table;
drop table boolean_table;
drop table character_varying_table;
drop table character_table;
drop table date_table;
drop table double_precision_table;
drop table integer_table;
drop table money_table;
drop table real_table;
drop table smallint_table;
drop table serial_table;
drop table text_table;
drop table time_table;
drop table timestamp_table;
drop table int8_table;
drop table serial8_table;
drop table varbit_table;
drop table bool_table;
drop table varchar_table;
drop table char_table;
drop table float8_table;
drop table int_table;
drop table int4_table;
drop table numeric_table;
drop table decimal_table;
drop table float4_table;
drop table int2_table;
drop table serial4_table;
drop table timetz_table;
drop table timestamptz_table;
drop table bytea_table;
drop table oid_table;
drop table テーブル;

DROP FUNCTION FUNC_SIMPLETYPE_PARAM(param1 IN INTEGER);