Initial commit

boundaries/dissemination_areas.sql

@@ -0,0 +1,66 @@
+/*
+Dissemination Areas
+*/
+
+/* 2021
+Definition here: https://web.archive.org/web/20240731061905/https://www12.statcan.gc.ca/census-recensement/2021/ref/dict/az/definition-eng.cfm?ID=geo021
+*/
+
+DROP TABLE IF EXISTS silver.da_2021;
+CREATE TABLE silver.da_2021 AS
+SELECT DISTINCT
+    csd.country_dguid,
+    csd.country_en_name,
+    csd.country_fr_name,
+    csd.country_en_abbreviation,
+    csd.country_fr_abbreviation,
+    csd.grc_dguid,
+    csd.grc_en_name,
+    csd.grc_fr_name,
+    csd.pr_dguid,
+    csd.pr_en_name,
+    csd.pr_fr_name,
+    csd.pr_en_abbreviation,
+    csd.pr_fr_abbreviation,
+    csd.pr_iso_code,
+    csd.car_dguid,
+    csd.car_en_name,
+    csd.car_fr_name,
+    csd.er_dguid,
+    csd.er_name,
+    csd.cd_dguid,
+    csd.cd_name,
+    csd.cd_type,
+    csd.ccs_dguid,
+    csd.ccs_name,
+    csd.cma_dguid,
+    csd.cma_p_dguid,
+    csd.cma_name,
+    csd.cma_type,
+    csd.csd_dguid,
+    csd.csd_name,
+    csd.csd_type,
+    csd.sac_type,
+    csd.sac_code,
+    dgr.ct_dguid,
+    dgr.ada_dguid,
+    dgr.da_dguid,
+    da.geom
+FROM silver.dissemination_geographies_relationship_2021 AS dgr
+LEFT JOIN silver.csd_2021 AS csd
+    ON dgr.csd_dguid = csd.csd_dguid
+LEFT JOIN bronze.lda_000a21a_e AS da
+    ON dgr.da_dguid = da.dguid;
+
+-- Make geometries valid
+UPDATE
+    bronze.lda_000a21a_e
+SET
+    geom = st_makevalid(geom)
+WHERE
+    st_isvalid(geom) = 'f';
+
+-- Create spatial index
+CREATE INDEX da_2021_geom_idx ON silver.da_2021 USING gist (geom) WITH (
+    fillfactor = 100
+);