hans/Nominatim
1
0
Fork 1
mirror of https://github.com/osm-search/Nominatim.git synced 2026-02-14 18:37:58 +00:00
Code Issues Packages Projects Releases Wiki Activity

further split up the big geometry index

Browse Source 
Adds partial indexes for all geometry queries used during import.
A full index is not necessary anymore at that point. Still create
the index afterwards for use in queries.

Also adds documentation for all indexes on where they are used.
This commit is contained in:
Sarah Hoffmann
2022-09-21 14:25:07 +02:00
parent f4d3ae6f70
commit 33ba6896a8
4 changed files with 60 additions and 20 deletions
Download Patch File Download Diff File Expand all files Collapse all files

22
lib-sql/indices.sql
View File

@@ -5,13 +5,6 @@
-- Copyright (C) 2022 by the Nominatim developer community.
-- For a full list of authors see the git log.
-- The following indicies are only useful during imoprt when all of placex is processed.
{% if drop %}
DROP INDEX IF EXISTS idx_placex_rank_address_sector;
DROP INDEX IF EXISTS idx_placex_rank_boundaries_sector;
{% endif %}
-- Indices used only during search and update.
-- These indices are created only after the indexing process is done.
@@ -28,6 +21,9 @@ CREATE INDEX IF NOT EXISTS idx_placex_parent_place_id
ON placex USING BTREE (parent_place_id) {{db.tablespace.search_index}}
WHERE parent_place_id IS NOT NULL;
---
CREATE INDEX IF NOT EXISTS idx_placex_geometry ON placex
USING GIST (geometry) {{db.tablespace.search_index}};
---
CREATE INDEX IF NOT EXISTS idx_placex_geometry_reverse_lookupPolygon
ON placex USING gist (geometry) {{db.tablespace.search_index}}
WHERE St_GeometryType(geometry) in ('ST_Polygon', 'ST_MultiPolygon')
@@ -43,9 +39,17 @@ CREATE INDEX IF NOT EXISTS idx_osmline_parent_osm_id
---
CREATE INDEX IF NOT EXISTS idx_postcode_postcode
ON location_postcode USING BTREE (postcode) {{db.tablespace.search_index}};
-- Indices only needed for updating.
{% if not drop %}
{% if drop %}
---
DROP INDEX IF EXISTS idx_placex_geometry_address_area_candidates;
DROP INDEX IF EXISTS idx_placex_geometry_buildings;
DROP INDEX IF EXISTS idx_placex_geometry_lower_rank_ways;
DROP INDEX IF EXISTS idx_placex_wikidata;
DROP INDEX IF EXISTS idx_placex_rank_address_sector;
DROP INDEX IF EXISTS idx_placex_rank_boundaries_sector;
{% else %}
-- Indices only needed for updating.
---
CREATE INDEX IF NOT EXISTS idx_location_area_country_place_id
ON location_area_country USING BTREE (place_id) {{db.tablespace.address_index}};