begin;
attach database 'baseball-raw.db' as 'raw';

create table if not exists "parkaliases" (
	"parkID"	text,
	"alias"	text
);

-- split aliases by semicolon
with recursive aliases(parkid, alias) as (
	select "park.key", "park.alias" from "raw"."parks"
	union
	select parkid, trim(substr(alias, instr(alias, ";") + 1)) as a
	from aliases
	where a != ''
) insert into parkaliases
select parkid, case instr(alias, ";")
	when 0 then alias
	else trim(substr(alias, 1, instr(alias, ";") - 1)) end as a
from aliases
where a != '';

alter table parks drop column "park.alias";

-- insert some missing parks
insert into parks values
('ARL03', 'Globe Life Field', 'Arlington', 'TX', 'US'),
('BUF05', 'Sahlen Field', 'Buffalo', 'NY', 'US'),
('DUN01', 'TD Ballpark', 'Dunedin', 'FL', 'US'),
('DYE01', 'Field of Dreams', 'Dyersville', 'IA', 'US');
commit;