23.09.2024

Functions/city_cleaning_pg_spalte_in_text_.txt

+-- DROP FUNCTION schema_xyz.city_cleaning_pg(text);
+
+CREATE OR REPLACE FUNCTION schema_xyz.city_cleaning_pg(spalte_in text)
+ RETURNS character varying
+ LANGUAGE plpgsql
+AS $function$
+
+DECLARE
+
+
+ergebnis varchar;
+city_cleaned varchar;
+
+
+
+BEGIN
+
+   
+city_cleaned:=regexp_replace(upper(spalte_in),'D?E?O?W?-? ?[0-9]{4,6} ?',' ' , 'g');
+city_cleaned:=regexp_replace(city_cleaned,'D?E?O?W?-? ?[0-9]{2,2} [0-9]{3,3} ?',' ' , 'g');
+city_cleaned:=regexp_replace(city_cleaned,'D?E?o?W?-? ?[0-9]{3,3} [0-9]{2,2} ?',' ' , 'g');
+city_cleaned:=ltrim(rtrim(city_cleaned));
+city_cleaned:=replace(city_cleaned,', ', ' ');
+city_cleaned:=replace(city_cleaned,'  ', ' ');
+city_cleaned:=replace(city_cleaned,'  ', ' ');
+
+if (city_cleaned like '%,')
+then
+city_cleaned:=substr(city_cleaned, 1, length(city_cleaned)-1);
+end if;
+
+city_cleaned:=ltrim(rtrim(city_cleaned));
+city_cleaned:=regexp_replace(city_cleaned,'^[0-9]{1,3} ',' ' , 'g');
+city_cleaned:=regexp_replace(city_cleaned,' [0-9]{1,3}$',' ' , 'g');
+city_cleaned:=regexp_replace(city_cleaned,' [0-9]{1,3} ',' ' , 'g');
+city_cleaned:=replace(city_cleaned,', ', ' ');
+city_cleaned:=replace(city_cleaned,'  ', ' ');
+city_cleaned:=replace(city_cleaned,'  ', ' ');
+city_cleaned:=ltrim(rtrim(city_cleaned));
+
+
+ ergebnis:=city_cleaned;
+   
+   
+   RETURN ergebnis;
+
+	END;
+$function$
+;