data/db_cx.sql
@@ -6,7 +6,9 @@ create extension fuzzystrmatch; create extension postgis_tiger_geocoder; create extension address_standardizer; create extension "uuid-ossp"; select uuid_generate_v4(); -- uuid,36位 select split_part('12.34.56.78', '.', 1); -- 切割 select substr('FY2021', 3, 2); -- 提取 select substring('FY2021' FROM 3 for 2); -- 提取