PostgreSQLに登録したPL/pgSQLの内容を確認する方法
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SELECT routine_definition
FROM information_schema.routines
WHERE routine_name = '(関数名)';
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(例)
=#
CREATE OR REPLACE FUNCTION hogehoge(INTEGER) RETURNS VOID AS $$
DECLARE
BEGIN
END;
$$ LANGUAGE plpgsql;
=#
SELECT routine_definition
FROM information_schema.routines
WHERE routine_name = 'hogehoge'
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参考URL
