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d4c-datapkg-statistical/boundaries/census_agricultural_regions.sql
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Diego Ripley f93e4d0cec Initial commit
2025-05-24 13:37:31 -04:00

50 lines
1.1 KiB
SQL

/*
Census Agricultural Regions
*/
/* 2021
Definition here: https://web.archive.org/web/20250401192328/https://www12.statcan.gc.ca/census-recensement/2021/ref/dict/az/definition-eng.cfm?ID=geo006
*/
DROP TABLE IF EXISTS silver.car_2021;
CREATE TABLE silver.car_2021 AS
SELECT DISTINCT
pr.country_dguid,
pr.country_en_name,
pr.country_fr_name,
pr.country_en_abbreviation,
pr.country_fr_abbreviation,
pr.grc_dguid,
pr.grc_en_name,
pr.grc_fr_name,
pr.pr_dguid,
pr.pr_en_name,
pr.pr_fr_name,
pr.pr_en_abbreviation,
pr.pr_fr_abbreviation,
pr.pr_iso_code,
dgr.car_dguid,
car.carename AS car_en_name,
car.carfname AS car_fr_name,
car.geom
FROM
silver.pr_2021 AS pr,
silver.dissemination_geographies_relationship_2021 AS dgr,
bronze.lcar000a21a_e AS car
WHERE
pr.pr_dguid = dgr.pr_dguid
AND car.dguid = dgr.car_dguid;
-- Make geometries valid
UPDATE
silver.car_2021
SET
geom = st_makevalid(geom)
WHERE
st_isvalid(geom) = 'f';
-- Create spatial index
CREATE INDEX car_2021_geom_idx ON silver.car_2021 USING gist (geom) WITH (
fillfactor = 100
);