X-Git-Url: https://git.openstreetmap.org./nominatim.git/blobdiff_plain/28a2a795ba82ba9737d52e5aad5fdf1ac1b04534..5d302a03a6ed9250b7a280a9bdd0c7e7a9bb2222:/lib-sql/indices.sql

diff --git a/lib-sql/indices.sql b/lib-sql/indices.sql
index a6f7cf95..8c176fdf 100644
--- a/lib-sql/indices.sql
+++ b/lib-sql/indices.sql
@@ -1,65 +1,114 @@
+-- SPDX-License-Identifier: GPL-2.0-only
+--
+-- This file is part of Nominatim. (https://nominatim.org)
+--
+-- Copyright (C) 2022 by the Nominatim developer community.
+-- For a full list of authors see the git log.
+
 -- Indices used only during search and update.
 -- These indices are created only after the indexing process is done.
 
-CREATE INDEX {{sql.if_index_not_exists}} idx_word_word_id
-  ON word USING BTREE (word_id) {{db.tablespace.search_index}};
-
-CREATE INDEX {{sql.if_index_not_exists}} idx_place_addressline_address_place_id
+CREATE INDEX IF NOT EXISTS idx_place_addressline_address_place_id
   ON place_addressline USING BTREE (address_place_id) {{db.tablespace.search_index}};
-
-CREATE INDEX {{sql.if_index_not_exists}} idx_placex_rank_search
+---
+CREATE INDEX IF NOT EXISTS idx_placex_rank_search
   ON placex USING BTREE (rank_search) {{db.tablespace.search_index}};
-
-CREATE INDEX {{sql.if_index_not_exists}} idx_placex_rank_address
+---
+CREATE INDEX IF NOT EXISTS idx_placex_rank_address
   ON placex USING BTREE (rank_address) {{db.tablespace.search_index}};
-
-CREATE INDEX {{sql.if_index_not_exists}} idx_placex_parent_place_id
+---
+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 {{sql.if_index_not_exists}} idx_placex_geometry_reverse_lookupPolygon
+---
+-- Used to find postcode areas after a search in location_postcode.
+CREATE INDEX IF NOT EXISTS idx_placex_postcode_areas
+  ON placex USING BTREE (country_code, postcode) {{db.tablespace.search_index}}
+  WHERE osm_type = 'R' AND class = 'boundary' AND type = 'postal_code';
+---
+CREATE INDEX IF NOT EXISTS idx_placex_geometry ON placex
+  USING GIST (geometry) {{db.tablespace.search_index}};
+-- Index is needed during import but can be dropped as soon as a full
+-- geometry index is in place. The partial index is almost as big as the full
+-- index.
+DROP INDEX IF EXISTS idx_placex_geometry_lower_rank_ways;
+---
+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')
     AND rank_address between 4 and 25 AND type != 'postcode'
     AND name is not null AND indexed_status = 0 AND linked_place_id is null;
-
-CREATE INDEX {{sql.if_index_not_exists}} idx_osmline_parent_place_id
-  ON location_property_osmline USING BTREE (parent_place_id) {{db.tablespace.search_index}};
-
-CREATE INDEX {{sql.if_index_not_exists}} idx_osmline_parent_osm_id
+---
+-- used in reverse large area lookup
+CREATE INDEX IF NOT EXISTS idx_placex_geometry_reverse_lookupPlaceNode
+  ON placex USING gist (ST_Buffer(geometry, reverse_place_diameter(rank_search)))
+  {{db.tablespace.search_index}}
+  WHERE rank_address between 4 and 25 AND type != 'postcode'
+    AND name is not null AND linked_place_id is null AND osm_type = 'N';
+---
+CREATE INDEX IF NOT EXISTS idx_osmline_parent_place_id
+  ON location_property_osmline USING BTREE (parent_place_id) {{db.tablespace.search_index}}
+  WHERE parent_place_id is not null;
+---
+CREATE INDEX IF NOT EXISTS idx_osmline_parent_osm_id
   ON location_property_osmline USING BTREE (osm_id) {{db.tablespace.search_index}};
-
-CREATE INDEX {{sql.if_index_not_exists}} idx_postcode_postcode
+---
+CREATE INDEX IF NOT EXISTS idx_postcode_postcode
   ON location_postcode USING BTREE (postcode) {{db.tablespace.search_index}};
 
+{% 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.
-
-{% if not drop %}
-  CREATE INDEX {{sql.if_index_not_exists}} idx_placex_pendingsector
-    ON placex USING BTREE (rank_address,geometry_sector) {{db.tablespace.address_index}}
-    WHERE indexed_status > 0;
-
-  CREATE INDEX {{sql.if_index_not_exists}} idx_location_area_country_place_id
+---
+  CREATE INDEX IF NOT EXISTS idx_location_area_country_place_id
     ON location_area_country USING BTREE (place_id) {{db.tablespace.address_index}};
-
-  CREATE UNIQUE INDEX {{sql.if_index_not_exists}} idx_place_osm_unique
+---
+  CREATE UNIQUE INDEX IF NOT EXISTS idx_place_osm_unique
     ON place USING btree(osm_id, osm_type, class, type) {{db.tablespace.address_index}};
+---
+-- Table needed for running updates with osm2pgsql on place.
+  CREATE TABLE IF NOT EXISTS place_to_be_deleted (
+    osm_type CHAR(1),
+    osm_id BIGINT,
+    class TEXT,
+    type TEXT,
+    deferred BOOLEAN
+   );
+---
+  CREATE INDEX IF NOT EXISTS idx_location_postcode_parent_place_id
+    ON location_postcode USING BTREE (parent_place_id) {{db.tablespace.address_index}};
 {% endif %}
 
 -- Indices only needed for search.
-
 {% if 'search_name' in db.tables %}
-  CREATE INDEX {{sql.if_index_not_exists}} idx_search_name_nameaddress_vector
+---
+  CREATE INDEX IF NOT EXISTS idx_search_name_nameaddress_vector
     ON search_name USING GIN (nameaddress_vector) WITH (fastupdate = off) {{db.tablespace.search_index}};
-  CREATE INDEX {{sql.if_index_not_exists}} idx_search_name_name_vector
+---
+  CREATE INDEX IF NOT EXISTS idx_search_name_name_vector
     ON search_name USING GIN (name_vector) WITH (fastupdate = off) {{db.tablespace.search_index}};
-  CREATE INDEX {{sql.if_index_not_exists}} idx_search_name_centroid
+---
+  CREATE INDEX IF NOT EXISTS idx_search_name_centroid
     ON search_name USING GIST (centroid) {{db.tablespace.search_index}};
 
   {% if postgres.has_index_non_key_column %}
-    CREATE INDEX {{sql.if_index_not_exists}} idx_placex_housenumber
-      ON placex USING btree (parent_place_id) INCLUDE (housenumber) WHERE housenumber is not null;
-    CREATE INDEX {{sql.if_index_not_exists}} idx_osmline_parent_osm_id_with_hnr
-      ON location_property_osmline USING btree(parent_place_id) INCLUDE (startnumber, endnumber);
+---
+    CREATE INDEX IF NOT EXISTS idx_placex_housenumber
+      ON placex USING btree (parent_place_id)
+      INCLUDE (housenumber) {{db.tablespace.search_index}}
+      WHERE housenumber is not null;
+---
+    CREATE INDEX IF NOT EXISTS idx_osmline_parent_osm_id_with_hnr
+      ON location_property_osmline USING btree(parent_place_id)
+      INCLUDE (startnumber, endnumber) {{db.tablespace.search_index}}
+      WHERE startnumber is not null;
   {% endif %}
+
 {% endif %}