17 lines
548 B
PL/PgSQL
17 lines
548 B
PL/PgSQL
-- sequence_uri_provider_uri_sequence_seq --> name of the sequence for currval()
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-- it is generated automatically by postgres
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CREATE OR REPLACE FUNCTION generis_sequence_uri_provider(modeluri varchar)
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RETURNS varchar
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LANGUAGE plpgsql
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VOLATILE
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AS $$
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DECLARE uri varchar;
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DECLARE stamp int;
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BEGIN
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INSERT INTO sequence_uri_provider DEFAULT VALUES;
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SELECT INTO stamp extract(epoch FROM now())::int;
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uri := modeluri || 'i' || stamp || FLOOR(RANDOM() * 10000) || currval('sequence_uri_provider_uri_sequence_seq');
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RETURN uri;
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END
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$$;
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