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annotate schema/search_functions.sql @ 3732:b1fe61b58048

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Allow to search gauges per ISRS code.
author Sascha Wilde <wilde@intevation.de>
date Mon, 24 Jun 2019 11:22:16 +0200
parents 194feb1a7e37
children 1504856c9378
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1 -- This is Free Software under GNU Affero General Public License v >= 3.0
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2 -- without warranty, see README.md and license for details.
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3
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4 -- SPDX-License-Identifier: AGPL-3.0-or-later
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5 -- License-Filename: LICENSES/AGPL-3.0.txt
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6
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7 -- Copyright (C) 2018 by via donau
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8 -- – Österreichische Wasserstraßen-Gesellschaft mbH
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9 -- Software engineering by Intevation GmbH
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10
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11 -- Author(s):
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12 -- * Sascha Wilde <wilde@intevation.de>
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13
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14 CREATE OR REPLACE FUNCTION search_bottlenecks(search_string text) RETURNS jsonb
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15 LANGUAGE plpgsql
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16 AS $$
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17 DECLARE
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18 _result jsonb;
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19 BEGIN
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20 SELECT COALESCE(json_agg(r),'[]')
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21 INTO _result
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22 FROM (SELECT objnam AS name,
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23 ST_AsGeoJSON(ST_Centroid(area))::json AS geom,
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24 'bottleneck' AS type
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25 FROM waterway.bottlenecks
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26 WHERE objnam ILIKE '%' || search_string || '%'
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27 ORDER BY name) r;
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28 RETURN _result;
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29 END;
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30 $$;
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31
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32 CREATE OR REPLACE FUNCTION search_cities(search_string text) RETURNS jsonb
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33 LANGUAGE plpgsql
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34 AS $$
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35 DECLARE
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36 _result jsonb;
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37 BEGIN
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38 SELECT COALESCE(json_agg(r),'[]')
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39 INTO _result
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40 FROM (SELECT name || ' (' || country_code || ')' AS name,
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41 ST_AsGeoJSON(location)::json AS geom,
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42 'city' AS type
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43 FROM waterway.geonames
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44 WHERE feature_code IN ('PPLA', 'PPLA1', 'PPLA2', 'PPLA3', 'PPLC')
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45 AND (name ILIKE '%' || search_string || '%'
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46 OR alternatenames ~* ('(^|,)' || search_string || '($|,)'))
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47 ORDER BY array_position(ARRAY['PPLC', 'PPLA', 'PPLA1', 'PPLA2', 'PPLA3'],
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48 feature_code::text),
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49 name) r;
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50 RETURN _result;
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51 END;
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52 $$;
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53
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54 CREATE OR REPLACE FUNCTION search_gauges(search_string text) RETURNS jsonb
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55 LANGUAGE plpgsql
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56 AS $$
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57 DECLARE
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58 _result jsonb;
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59 BEGIN
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60 IF is_ISRSstring(search_string) THEN
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61 SELECT COALESCE(json_agg(r),'[]')
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62 INTO _result
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63 FROM (
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64 SELECT objname AS name,
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65 ST_AsGeoJSON(geom)::json AS geom,
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66 'gauge' AS type
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67 FROM waterway.gauges
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68 WHERE location = isrs_fromText(search_string)
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69 ORDER BY name) r;
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70 ELSE
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71 SELECT COALESCE(json_agg(r),'[]')
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72 INTO _result
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73 FROM (
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74 SELECT objname AS name,
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75 ST_AsGeoJSON(geom)::json AS geom,
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76 'gauge' AS type
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77 FROM waterway.gauges
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78 WHERE objname ILIKE '%' || search_string || '%'
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79 ORDER BY name) r;
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80 END IF;
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81 RETURN _result;
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82 END;
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83 $$;
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84
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85 CREATE OR REPLACE FUNCTION search_sections(search_string text) RETURNS jsonb
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86 LANGUAGE plpgsql
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87 AS $$
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88 DECLARE
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89 _result jsonb;
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90 BEGIN
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91 SELECT COALESCE(json_agg(r),'[]')
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92 INTO _result
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93 FROM (SELECT objnam AS name,
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94 ST_AsGeoJSON(ST_Centroid(area))::json AS geom,
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95 'section' AS type
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96 FROM waterway.sections
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97 WHERE objnam ILIKE '%' || search_string || '%'
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98 OR nobjnam ILIKE '%' || search_string || '%'
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99 ORDER BY name) r;
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100 RETURN _result;
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101 END;
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102 $$;
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103
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104 CREATE OR REPLACE FUNCTION search_most(search_string text) RETURNS jsonb
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105 LANGUAGE plpgsql
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106 AS $$
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107 BEGIN
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108 RETURN search_bottlenecks(search_string)
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109 || search_gauges(search_string)
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110 || search_sections(search_string)
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111 || search_cities(search_string);
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112 END;
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113 $$;