25 lines
613 B
PL/PgSQL
25 lines
613 B
PL/PgSQL
begin;
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create table if not exists "parkaliases" (
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"parkID" text,
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"alias" text,
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primary key("parkID","alias"),
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foreign key("parkID") references "parks"("park.key")
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);
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-- split aliases by semicolon
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with recursive aliases(parkid, alias) as (
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select "park.key", "park.alias" from parks
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union
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select parkid, trim(substr(alias, instr(alias, ";") + 1)) as a
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from aliases
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where a != ''
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) insert into parkaliases
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select parkid, case instr(alias, ";")
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when 0 then alias
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else trim(substr(alias, 1, instr(alias, ";") - 1)) end as a
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from aliases
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where a != '';
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alter table parks drop column "park.alias";
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commit;
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