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add indexes for lookup of addressable areas

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The generic geometry index has become to slow for that purpose.
This commit is contained in:
Sarah Hoffmann
2022-09-18 16:50:18 +02:00
parent d6a0947e5a
commit aef014a47d
2 changed files with 12 additions and 3 deletions
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7
lib-sql/functions/placex_triggers.sql
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@@ -874,8 +874,9 @@ BEGIN
FROM placex,
LATERAL compute_place_rank(country_code, 'A', class, type,
admin_level, False, null) prank
WHERE class = 'place' and rank_address < 24
WHERE class = 'place' and rank_address between 1 and 23
and prank.address_rank >= NEW.rank_address
and ST_GeometryType(geometry) in ('ST_Polygon','ST_MultiPolygon') -- select right index
and geometry && NEW.geometry
and geometry ~ NEW.geometry -- needed because ST_Relate does not do bbox cover test
and ST_Relate(geometry, NEW.geometry, 'T*T***FF*') -- contains but not equal
@@ -896,6 +897,8 @@ BEGIN
LATERAL compute_place_rank(country_code, 'A', class, type,
admin_level, False, null) prank
WHERE prank.address_rank < 24
and rank_address between 1 and 25 -- select right index
and ST_GeometryType(geometry) in ('ST_Polygon','ST_MultiPolygon') -- select right index
and prank.address_rank >= NEW.rank_address
and geometry && NEW.geometry
and geometry ~ NEW.geometry -- needed because ST_Relate does not do bbox cover test
@@ -916,6 +919,8 @@ BEGIN
LATERAL compute_place_rank(country_code, 'A', class, type,
admin_level, False, null) prank
WHERE osm_type = 'R'
and rank_address between 1 and 25 -- select right index
and ST_GeometryType(geometry) in ('ST_Polygon','ST_MultiPolygon') -- select right index
and ((class = 'place' and prank.address_rank = NEW.rank_address)
or (class = 'boundary' and rank_address = NEW.rank_address))
and geometry && NEW.centroid and _ST_Covers(geometry, NEW.centroid)