mirror of
https://github.com/dataforcanada/d4c-datapkg-statistical.git
synced 2026-06-13 14:10:55 +02:00
Diego Ripley
95 lines
2.4 KiB
SQL
95 lines
2.4 KiB
SQL
/*
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Population Centres
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*/
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/* 2021
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Definition here: https://web.archive.org/web/20250324222733/https://www12.statcan.gc.ca/census-recensement/2021/ref/dict/az/definition-eng.cfm?ID=geo049a
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*/
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-- Digital boundary;
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DROP TABLE IF EXISTS silver.pop_ctr_2021_digital;
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CREATE TABLE silver.pop_ctr_2021_digital AS
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SELECT DISTINCT
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pr.country_dguid,
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pr.country_en_name,
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pr.country_fr_name,
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pr.country_en_abbreviation,
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pr.country_fr_abbreviation,
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pr.grc_dguid,
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pr.grc_en_name,
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pr.grc_fr_name,
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pr.pr_dguid,
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pr.pr_en_name,
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pr.pr_fr_name,
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pr.pr_en_abbreviation,
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pr.pr_fr_abbreviation,
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pr.pr_iso_code,
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gaf.pop_ctr_dguid,
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gaf.pop_ctr_p_dguid,
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pop_ctr.pcname AS pop_ctr_name,
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pop_ctr.pctype AS pop_ctr_type,
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pop_ctr.pcclass AS pop_ctr_class,
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pop_ctr.geom
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FROM silver.gaf_2021 AS gaf
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LEFT JOIN bronze.lpc_000a21a_e AS pop_ctr
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ON
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concat(gaf.pop_ctr_dguid, gaf.pop_ctr_p_dguid)
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= concat(pop_ctr.dguid, pop_ctr.dguidp)
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LEFT JOIN silver.pr_2021_digital AS pr
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ON gaf.pr_dguid = pr.pr_dguid
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WHERE gaf.pop_ctr_dguid IS NOT null OR gaf.pop_ctr_p_dguid IS NOT null;
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-- Make geometries valid
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UPDATE
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silver.pop_ctr_2021_digital
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SET
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geom = st_makevalid(geom)
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WHERE
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st_isvalid(geom) = 'f';
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-- Create spatial index
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CREATE INDEX pop_ctr_2021_digital_geom_idx ON silver.pop_ctr_2021_digital USING gist (
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geom
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) WITH (fillfactor = 100);
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-- Cartographic boundary;
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DROP TABLE IF EXISTS silver.pop_ctr_2021_cartographic;
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CREATE TABLE silver.pop_ctr_2021_cartographic AS
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SELECT DISTINCT
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b.country_dguid,
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b.country_en_name,
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b.country_fr_name,
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b.country_en_abbreviation,
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b.country_fr_abbreviation,
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b.grc_dguid,
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b.grc_en_name,
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b.grc_fr_name,
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b.pr_dguid,
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b.pr_en_name,
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b.pr_fr_name,
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b.pr_en_abbreviation,
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b.pr_fr_abbreviation,
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b.pr_iso_code,
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b.pop_ctr_dguid,
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b.pop_ctr_p_dguid,
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b.pop_ctr_name,
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b.pop_ctr_type,
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b.pop_ctr_class,
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a.geom
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FROM
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bronze.lpc_000b21a_e AS a,
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silver.pop_ctr_2021_digital AS b
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WHERE concat(b.pop_ctr_dguid, b.pop_ctr_p_dguid) = concat(a.dguid, a.dguidp);
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-- Make geometries valid
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UPDATE
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silver.pop_ctr_2021_cartographic
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SET
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geom = st_makevalid(geom)
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WHERE
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st_isvalid(geom) = 'f';
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-- Create spatial index
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CREATE INDEX pop_ctr_2021_cartographic_geom_idx ON silver.pop_ctr_2021_cartographic USING gist (
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geom
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) WITH (fillfactor = 100); |