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remove unused columns from word and search_name_* tables

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Removes 'trigram' and 'location' from word.
  Removes 'address', 'importance' and 'country_code' from search_name_*.
  Use full geometry in centroid column of search_name_*.

  Requires migration of existing tables. For more info see pull request
  https://github.com/twain47/Nominatim/pull/45
This commit is contained in:
Sarah Hoffmann
2013-04-09 22:44:05 +02:00
parent 4d2b88dd3e
commit 23d303124e
6 changed files with 34 additions and 32 deletions
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16
sql/partition-tables.src.sql
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@@ -1,9 +1,9 @@
drop type nearplace cascade;
drop type if exists nearplace cascade;
create type nearplace as (
place_id BIGINT
);
drop type nearfeature cascade;
drop type if exists nearfeature cascade;
create type nearfeature as (
place_id BIGINT,
keywords int[],
@@ -13,7 +13,7 @@ create type nearfeature as (
isguess boolean
);
drop type nearfeaturecentr cascade;
drop type if exists nearfeaturecentr cascade;
create type nearfeaturecentr as (
place_id BIGINT,
keywords int[],
@@ -24,6 +24,16 @@ create type nearfeaturecentr as (
centroid GEOMETRY
);
drop table IF EXISTS search_name_blank CASCADE;
CREATE TABLE search_name_blank (
place_id BIGINT,
search_rank integer,
address_rank integer,
name_vector integer[]
);
SELECT AddGeometryColumn('search_name_blank', 'centroid', 4326, 'GEOMETRY', 2);
CREATE TABLE location_area_country () INHERITS (location_area_large);
CREATE INDEX idx_location_area_country_geometry ON location_area_country USING GIST (geometry);