CREATE TABLE foo:client_id(id serial, data text, anotherdata int);
ALTER TABLE foo:client_id ADD COLUMN col_01 int;
ALTER TABLE foo:client_id ADD COLUMN col_02 int;
ALTER TABLE foo:client_id ADD COLUMN col_03 int;
ALTER TABLE foo:client_id ADD COLUMN col_04 int;
ALTER TABLE foo:client_id ADD COLUMN col_05 int;
ALTER TABLE foo:client_id ADD COLUMN col_06 int;
ALTER TABLE foo:client_id ADD COLUMN col_07 int;
ALTER TABLE foo:client_id ADD COLUMN col_08 int;
ALTER TABLE foo:client_id ADD COLUMN col_09 int;
ALTER TABLE foo:client_id ADD COLUMN col_10 int;
ALTER TABLE foo:client_id ADD COLUMN col_11 int;
ALTER TABLE foo:client_id ADD COLUMN col_12 int;
ALTER TABLE foo:client_id ADD COLUMN col_13 int;
ALTER TABLE foo:client_id ADD COLUMN col_14 int;
ALTER TABLE foo:client_id ADD COLUMN col_15 int;
ALTER TABLE foo:client_id ADD COLUMN col_16 int;
ALTER TABLE foo:client_id ADD COLUMN col_17 int;
ALTER TABLE foo:client_id ADD COLUMN col_18 int;
ALTER TABLE foo:client_id ADD COLUMN col_19 int;
DROP TABLE foo:client_id;