Mercurial > dive4elements > river

annotate flys-backend/doc/schema/postgresql.sql @ 476:77f337650211

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Added a view 'wst_value_table' which aggregates the data to build w/q value tables. flys-backend/trunk@1723 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Mon, 18 Apr 2011 15:52:53 +0000
parents 3570e4af8cb2
children b35c5dc0f8b7
rev   line source
164
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1 BEGIN;
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2
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3 -- Gewaesser
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4 CREATE SEQUENCE RIVERS_ID_SEQ;
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5
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6 CREATE TABLE rivers (
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7 id int PRIMARY KEY NOT NULL,
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8 name VARCHAR(256) NOT NULL UNIQUE
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9 );
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10
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11 -- Bruecke, Haefen, etc.
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12 CREATE SEQUENCE ATTRIBUTES_ID_SEQ;
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13
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14 CREATE TABLE attributes (
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15 id int PRIMARY KEY NOT NULL,
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16 value VARCHAR(256) NOT NULL UNIQUE
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17 );
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18
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19 -- segments from/to at a river
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20 CREATE SEQUENCE RANGES_ID_SEQ;
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21
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22 CREATE TABLE ranges (
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23 id int PRIMARY KEY NOT NULL,
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24 river_id int NOT NULL REFERENCES rivers(id),
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25 a NUMERIC NOT NULL,
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26 b NUMERIC,
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27 UNIQUE (river_id, a, b)
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28 );
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29
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30 -- Lage 'links', 'rechts', etc.
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31 CREATE SEQUENCE POSITIONS_ID_SEQ;
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32
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33 CREATE TABLE positions (
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34 id int PRIMARY KEY NOT NULL,
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35 value VARCHAR(256) NOT NULL UNIQUE
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36 );
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37
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38 -- Some object (eg. Hafen) at a segment of river
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39 -- plus its position.
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40 CREATE SEQUENCE ANNOTATIONS_ID_SEQ;
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41
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42 CREATE TABLE annotations (
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43 id int PRIMARY KEY NOT NULL,
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44 range_id int NOT NULL REFERENCES ranges(id),
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45 attribute_id int NOT NULL REFERENCES attributes(id),
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46 position_id int REFERENCES positions(id)
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47 );
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48
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49 -- Pegel
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50 CREATE SEQUENCE GAUGES_ID_SEQ;
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51
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52 CREATE TABLE gauges (
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53 id int PRIMARY KEY NOT NULL,
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54 name VARCHAR(256) NOT NULL,
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55 river_id int NOT NULL REFERENCES rivers(id),
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56 station NUMERIC NOT NULL UNIQUE,
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57 aeo NUMERIC NOT NULL,
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58
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59 -- Pegelnullpunkt
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60 datum NUMERIC NOT NULL,
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61 -- Streckengueltigkeit
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62 range_id int NOT NULL REFERENCES ranges (id),
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63
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64 UNIQUE (name, river_id),
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65 UNIQUE (river_id, station)
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66 );
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67
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68 -- Type of a Hauptwert 'W', 'Q', 'D', etc.
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69 CREATE SEQUENCE MAIN_VALUE_TYPES_ID_SEQ;
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71 CREATE TABLE main_value_types (
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72 id int PRIMARY KEY NOT NULL,
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73 name VARCHAR(256) NOT NULL UNIQUE
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74 );
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75
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76 -- Named type of a Hauptwert (eg. HQ100)
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77 CREATE SEQUENCE NAMED_MAIN_VALUES_ID_SEQ;
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78
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79 CREATE TABLE named_main_values (
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80 id int PRIMARY KEY NOT NULL,
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81 name VARCHAR(256) NOT NULL UNIQUE,
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82 type_id int NOT NULL REFERENCES main_value_types(id),
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83 UNIQUE (name, type_id)
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84 );
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85
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86 -- Table for time intervals
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87 CREATE SEQUENCE TIME_INTERVALS_ID_SEQ;
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88
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89 CREATE TABLE time_intervals (
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90 id int PRIMARY KEY NOT NULL,
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91 start_time TIMESTAMP NOT NULL,
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92 stop_time TIMESTAMP,
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93 CHECK (start_time <= stop_time)
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94 );
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95
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96 -- Stammdaten
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97 CREATE SEQUENCE MAIN_VALUES_ID_SEQ;
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99 CREATE TABLE main_values (
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100 id int PRIMARY KEY NOT NULL,
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101 gauge_id int NOT NULL REFERENCES gauges(id),
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102 named_value_id int NOT NULL REFERENCES named_main_values(id),
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103 value NUMERIC NOT NULL,
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104
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105 time_interval_id int REFERENCES time_intervals(id),
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106
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107 -- TODO: better checks
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108 UNIQUE (gauge_id, named_value_id, time_interval_id)
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109 );
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110
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111 -- Abflusstafeln
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112 CREATE SEQUENCE DISCHARGE_TABLES_ID_SEQ;
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113
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114 CREATE TABLE discharge_tables (
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115 id int PRIMARY KEY NOT NULL,
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116 gauge_id int NOT NULL REFERENCES gauges(id),
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117 kind int NOT NULL DEFAULT 0,
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118 time_interval_id int REFERENCES time_intervals(id),
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119
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120 -- TODO: better checks
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121 UNIQUE (gauge_id, time_interval_id)
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122 );
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123
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124 -- Values of the Abflusstafeln
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125 CREATE SEQUENCE DISCHARGE_TABLE_VALUES_ID_SEQ;
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126
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127 CREATE TABLE discharge_table_values (
168
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128 id int PRIMARY KEY NOT NULL,
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129 table_id int NOT NULL REFERENCES discharge_tables(id),
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130 q NUMERIC NOT NULL,
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131 w NUMERIC NOT NULL,
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132
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133 UNIQUE (table_id, q, w)
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134 );
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135
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136 -- WST files
171
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137 CREATE SEQUENCE WSTS_ID_SEQ;
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138
171
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139 CREATE TABLE wsts (
168
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140 id int PRIMARY KEY NOT NULL,
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141 river_id int NOT NULL REFERENCES rivers(id),
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142 description VARCHAR(256) NOT NULL,
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143 kind int NOT NULL DEFAULT 0,
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144 -- TODO: more meta infos
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145 UNIQUE (river_id, description)
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146 );
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147
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148 -- columns of WST files
171
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149 CREATE SEQUENCE WST_COLUMNS_ID_SEQ;
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150
171
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151 CREATE TABLE wst_columns (
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152 id int PRIMARY KEY NOT NULL,
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153 wst_id int NOT NULL REFERENCES wsts(id),
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154 name VARCHAR(256) NOT NULL,
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155 description VARCHAR(256),
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156 position int NOT NULL DEFAULT 0,
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157
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158 time_interval_id int REFERENCES time_intervals(id),
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159
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160 UNIQUE (wst_id, name),
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161 UNIQUE (wst_id, position)
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162 );
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163
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164 -- w values in WST file column
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165 CREATE SEQUENCE WST_COLUMN_VALUES_ID_SEQ;
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166
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167 CREATE TABLE wst_column_values (
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168 id int PRIMARY KEY NOT NULL,
171
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169 wst_column_id int NOT NULL REFERENCES wst_columns(id),
168
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170 position NUMERIC NOT NULL,
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171 w NUMERIC NOT NULL,
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172
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173 UNIQUE (position, wst_column_id),
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174 UNIQUE (position, wst_column_id, w)
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175 );
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176
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177 -- bind q values to range
170
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178 CREATE SEQUENCE WST_Q_RANGES_ID_SEQ;
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179
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180 CREATE TABLE wst_q_ranges (
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181 id int PRIMARY KEY NOT NULL,
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182 range_id int NOT NULL REFERENCES ranges(id),
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183 q NUMERIC NOT NULL
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184 );
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185
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186 -- bind q ranges to wst columns
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187 CREATE SEQUENCE WST_COLUMN_Q_RANGES_ID_SEQ;
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188
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189 CREATE TABLE wst_column_q_ranges (
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190 id int PRIMARY KEY NOT NULL,
173
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191 wst_column_id int NOT NULL REFERENCES wst_columns(id),
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192 wst_q_range_id int NOT NULL REFERENCES wst_q_ranges(id),
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193
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194 UNIQUE (wst_column_id, wst_q_range_id)
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195 );
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196
476
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197 CREATE VIEW wst_value_table AS
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198 SELECT wcv.position AS position,
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199 w,
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200 (SELECT q
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201 FROM wst_column_q_ranges wcqr
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202 JOIN wst_q_ranges wqr
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203 ON wcqr.wst_q_range_id = wqr.id
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204 JOIN ranges r
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205 ON r.id = wqr.range_id
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206 WHERE wcqr.wst_column_id = wc.id
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207 AND wcv.position BETWEEN r.a AND r.b) AS q,
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208 wc.position AS column_pos,
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209 w.id AS wst_id
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210 FROM wst_column_values wcv
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211 JOIN wst_columns wc
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212 ON wcv.wst_column_id = wc.id
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213 JOIN wsts w
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214 ON wc.wst_id = w.id
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215 ORDER BY wcv.position ASC,
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216 wc.position DESC;
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217
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218 COMMIT;
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