Insert aliases into table

sql/1nf/parkaliases.sql

@@ -2,6 +2,21 @@ begin;
 create table if not exists "parkaliases" (
 	"parkID"	text,
 	"alias"	text,
-	primary key("parkID","alias")
+	primary key("parkID","alias"),
+	foreign key("parkID") references "parks"("park.key")
 );
+
+-- split aliases by semicolon
+with recursive aliases(parkid, alias) as (
+	select "park.key", "park.alias" from 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 != '';
 commit;