34 lines
795 B
PL/PgSQL
34 lines
795 B
PL/PgSQL
pragma foreign_keys = 0;
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begin;
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attach database 'lahman-raw.db' as 'raw';
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create temp table if not exists "parkaliases" (
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"parkID" text,
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"alias" text
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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 "raw"."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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CREATE TABLE IF NOT EXISTS main."parkaliases" (
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"park" TEXT,
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"alias" TEXT,
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PRIMARY KEY("park","alias"),
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foreign key("park") references "parks"("ID")
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);
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insert into main."parkaliases" select distinct * from temp."parkaliases";
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commit;
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