Mercurial > gemma
view schema/search_functions.sql @ 3703:b07511ff859e
Don't include calculated area in unchanged bottleneck detection.
This makes BN imports considerably faster. The only downside is, that
when die waterway area changes there is no easy way to recalculate the
areas of existing BN. But the semantics in that case are somewhat
hard anyway (think of historization for the old area) so this should
be ok.
author | Sascha Wilde <wilde@intevation.de> |
---|---|
date | Wed, 19 Jun 2019 12:34:48 +0200 |
parents | 194feb1a7e37 |
children | b1fe61b58048 |
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-- This is Free Software under GNU Affero General Public License v >= 3.0 -- without warranty, see README.md and license for details. -- SPDX-License-Identifier: AGPL-3.0-or-later -- License-Filename: LICENSES/AGPL-3.0.txt -- Copyright (C) 2018 by via donau -- – Österreichische Wasserstraßen-Gesellschaft mbH -- Software engineering by Intevation GmbH -- Author(s): -- * Sascha Wilde <wilde@intevation.de> CREATE OR REPLACE FUNCTION search_bottlenecks(search_string text) RETURNS jsonb LANGUAGE plpgsql AS $$ DECLARE _result jsonb; BEGIN SELECT COALESCE(json_agg(r),'[]') INTO _result FROM (SELECT objnam AS name, ST_AsGeoJSON(ST_Centroid(area))::json AS geom, 'bottleneck' AS type FROM waterway.bottlenecks WHERE objnam ILIKE '%' || search_string || '%' ORDER BY name) r; RETURN _result; END; $$; CREATE OR REPLACE FUNCTION search_cities(search_string text) RETURNS jsonb LANGUAGE plpgsql AS $$ DECLARE _result jsonb; BEGIN SELECT COALESCE(json_agg(r),'[]') INTO _result FROM (SELECT name || ' (' || country_code || ')' AS name, ST_AsGeoJSON(location)::json AS geom, 'city' AS type FROM waterway.geonames WHERE feature_code IN ('PPLA', 'PPLA1', 'PPLA2', 'PPLA3', 'PPLC') AND (name ILIKE '%' || search_string || '%' OR alternatenames ~* ('(^|,)' || search_string || '($|,)')) ORDER BY array_position(ARRAY['PPLC', 'PPLA', 'PPLA1', 'PPLA2', 'PPLA3'], feature_code::text), name) r; RETURN _result; END; $$; CREATE OR REPLACE FUNCTION search_gauges(search_string text) RETURNS jsonb LANGUAGE plpgsql AS $$ DECLARE _result jsonb; BEGIN SELECT COALESCE(json_agg(r),'[]') INTO _result FROM (SELECT objname AS name, ST_AsGeoJSON(geom)::json AS geom, 'gauge' AS type FROM waterway.gauges WHERE objname ILIKE '%' || search_string || '%' ORDER BY name) r; RETURN _result; END; $$; CREATE OR REPLACE FUNCTION search_sections(search_string text) RETURNS jsonb LANGUAGE plpgsql AS $$ DECLARE _result jsonb; BEGIN SELECT COALESCE(json_agg(r),'[]') INTO _result FROM (SELECT objnam AS name, ST_AsGeoJSON(ST_Centroid(area))::json AS geom, 'section' AS type FROM waterway.sections WHERE objnam ILIKE '%' || search_string || '%' OR nobjnam ILIKE '%' || search_string || '%' ORDER BY name) r; RETURN _result; END; $$; CREATE OR REPLACE FUNCTION search_most(search_string text) RETURNS jsonb LANGUAGE plpgsql AS $$ BEGIN RETURN search_bottlenecks(search_string) || search_gauges(search_string) || search_sections(search_string) || search_cities(search_string); END; $$;