$$ LANGUAGE SQL IMMUTABLE STRICT;
-CREATE OR REPLACE FUNCTION token_normalized_postcode(postcode TEXT)
+CREATE OR REPLACE FUNCTION token_get_postcode(info JSONB)
RETURNS TEXT
AS $$
- SELECT CASE WHEN postcode SIMILAR TO '%(,|;)%' THEN NULL ELSE upper(trim(postcode))END;
+ SELECT info->>'postcode';
$$ LANGUAGE SQL IMMUTABLE STRICT;