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DROP FUNCTION check_primary_key ();
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DROP FUNCTION check_foreign_key ();
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CREATE FUNCTION check_primary_key ()
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RETURNS opaque
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AS 'MODULE_PATHNAME'
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LANGUAGE 'newC'
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;
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CREATE FUNCTION check_foreign_key ()
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RETURNS opaque
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AS 'MODULE_PATHNAME'
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LANGUAGE 'newC'
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;
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