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annotate schema/auth.sql @ 1913:2e0e7c1589c2

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Fixed RLS policy for waterway.stretches.
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Fri, 18 Jan 2019 18:15:41 +0100
parents 048580ec843d
children f9f1babe52ae
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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 -- * Tom Gottried <tom@intevation.de>
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13 -- * Sascha Wilde <sascha.wilde@intevation.de>
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14 -- * Sascha L. Teichmann <sascha.teichmann@intevation.de>
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15
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16 BEGIN;
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17
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18 --
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d349db18bece s/wamos/gemma/g on database schema.
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19 -- Roles, privileges and policies for the GEMMA database
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20 --
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21
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22 -- We do not want any users to be able to create any objects
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23 REVOKE ALL ON SCHEMA public FROM PUBLIC;
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24
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25 --
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26 -- Privileges for waterway_user
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27 --
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28 GRANT USAGE ON SCHEMA public, users, waterway, systemconf TO waterway_user;
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29 GRANT SELECT ON ALL TABLES IN SCHEMA public, users, waterway TO waterway_user;
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30 GRANT SELECT ON systemconf.feature_colours TO waterway_user;
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31 GRANT UPDATE (pw, map_extent, email_address) ON users.list_users
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32 TO waterway_user;
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33
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34 --
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35 -- Extended privileges for waterway_admin
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36 --
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37 GRANT INSERT, UPDATE, DELETE ON ALL TABLES IN SCHEMA waterway
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38 TO waterway_admin;
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39 -- TODO: will there ever be UPDATEs and DELETEs or can we drop that for
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40 -- imported data due to historicisation? Special tables like
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41 -- import_configuration will further need UPDATE and DELETE privileges.
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42 GRANT INSERT, UPDATE, DELETE ON
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43 users.templates, users.user_templates TO waterway_admin;
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44
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45 --
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46 -- Extended privileges for sys_admin
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47 --
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48 GRANT INSERT, UPDATE, DELETE
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49 ON users.list_users, users.responsibility_areas TO sys_admin;
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50 GRANT USAGE ON SCHEMA sys_admin TO sys_admin;
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51 GRANT SELECT ON ALL TABLES IN SCHEMA sys_admin TO sys_admin;
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52 GRANT UPDATE ON sys_admin.system_config TO sys_admin;
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53 GRANT UPDATE ON systemconf.feature_colours TO sys_admin;
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54 GRANT UPDATE ON sys_admin.published_services TO sys_admin;
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55 GRANT INSERT, DELETE ON sys_admin.password_reset_requests TO sys_admin;
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56
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57 --
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58 -- Privileges assigned directly to metamorph
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59 --
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60 -- Needed for GeoServer's system inspection run before session startup SQL
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61 GRANT USAGE ON SCHEMA public TO metamorph;
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62
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63 --
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64 -- RLS policies for waterway_user
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65 --
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66 -- Sometimes using FOR ALL because we rely on GRANTed privileges for allowing
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67 -- data modifications generally.
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68 -- Sometimes using 'username IN(SELECT username FROM users.list_users)' instead
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69 -- of 'username = current_user', because waterway_admin is intentionally
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70 -- allowed more with these policies (note that the subselect implies different
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71 -- filtering on list_users depending on current_user).
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72 --
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73
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74 -- Staging area
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75 DO LANGUAGE plpgsql
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76 $$
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77 DECLARE the_table varchar;
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78 BEGIN
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79 FOREACH the_table IN ARRAY ARRAY[
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80 'gauge_measurements',
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81 'stretches',
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82 'waterway_profiles',
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83 'fairway_dimensions',
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84 'bottlenecks',
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85 'sounding_results']
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86 LOOP
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87 EXECUTE format('CREATE POLICY hide_staging ON waterway.%I '
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88 'FOR SELECT TO waterway_user USING (staging_done)', the_table);
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89 EXECUTE format('ALTER TABLE waterway.%I ENABLE ROW LEVEL SECURITY',
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90 the_table);
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91 END LOOP;
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92 END;
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93 $$;
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94
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95 -- templates
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96 CREATE POLICY user_templates ON users.user_templates FOR ALL TO waterway_user
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97 USING (username IN(SELECT username FROM users.list_users));
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98 ALTER TABLE users.user_templates ENABLE ROW LEVEL SECURITY;
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99
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100 CREATE POLICY user_templates ON users.templates FOR ALL TO waterway_user
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101 USING (template_name IN(SELECT template_name FROM users.user_templates))
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102 WITH CHECK (true);
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103 ALTER TABLE users.templates ENABLE ROW LEVEL SECURITY;
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104
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105 --
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106 -- RLS policies for waterway_admin
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107 --
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108
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109 -- Staging area
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110 -- TODO: add all relevant tables here
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111
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112 CREATE POLICY same_country ON waterway.gauge_measurements
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113 FOR ALL TO waterway_admin
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114 USING ((fk_gauge_id).country_code = users.current_user_country());
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115
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116 CREATE POLICY responsibility_area ON waterway.bottlenecks
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117 FOR ALL TO waterway_admin
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118 USING (utm_covers(area));
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119
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120 CREATE POLICY responsibility_area ON waterway.sounding_results
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121 FOR ALL TO waterway_admin
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122 USING (utm_covers(area));
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123
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124 CREATE POLICY responsibility_area ON waterway.fairway_dimensions
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125 FOR ALL TO waterway_admin
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126 USING (utm_covers(area));
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127
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128 CREATE POLICY responsibility_area ON waterway.stretches
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129 FOR ALL TO sys_admin
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130 USING (utm_covers(geom));
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131
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132 --
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133 -- RLS policies for imports and import config
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134 --
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135
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136 CREATE POLICY same_country ON waterway.imports
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137 FOR ALL TO waterway_admin
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138 USING (users.current_user_country() = (
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139 SELECT country FROM users.list_users lu
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140 WHERE lu.username = imports.username));
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141 ALTER table waterway.imports ENABLE ROW LEVEL SECURITY;
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142
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143 -- The job running the import queue is running as sys_admin and login users
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144 -- with that role should be able to run imports without restrictions anyhow
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145 CREATE POLICY import_all ON waterway.imports
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146 FOR ALL TO sys_admin
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147 USING (true);
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148
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149 -- For the given table, check whether the given value is used as primary key,
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150 -- bypassing row level security.
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151 CREATE OR REPLACE FUNCTION waterway.is_new_key(
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152 tablename varchar,
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153 kv anyelement)
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154 RETURNS boolean
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155 AS $$
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156 DECLARE columnname varchar;
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157 DECLARE ret boolean;
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158 BEGIN
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159 columnname = (SELECT column_name
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160 FROM information_schema.key_column_usage k
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161 JOIN information_schema.table_constraints USING (constraint_name)
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162 WHERE k.table_name = tablename and constraint_type = 'PRIMARY KEY');
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163 EXECUTE format('SELECT NOT $1 = ANY(SELECT %I FROM waterway.%I)',
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164 columnname, tablename)
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165 INTO ret
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166 USING kv;
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167 RETURN ret;
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168 END;
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169 $$
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170 LANGUAGE plpgsql
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171 SECURITY DEFINER
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172 STABLE PARALLEL SAFE;
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173
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174 CREATE POLICY parent_allowed ON waterway.import_logs
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175 FOR ALL TO waterway_admin
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176 USING (import_id IN (SELECT id FROM waterway.imports))
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177 WITH CHECK (waterway.is_new_key('imports', import_id)
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178 OR import_id IN (SELECT id FROM waterway.imports));
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179 ALTER table waterway.import_logs ENABLE ROW LEVEL SECURITY;
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180
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181 CREATE POLICY parent_allowed ON waterway.track_imports
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182 FOR ALL TO waterway_admin
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183 USING (import_id IN (SELECT id FROM waterway.imports))
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184 WITH CHECK (waterway.is_new_key('imports', import_id)
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185 OR import_id IN (SELECT id FROM waterway.imports));
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186 ALTER table waterway.track_imports ENABLE ROW LEVEL SECURITY;
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187
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188 CREATE POLICY import_configuration_policy ON waterway.import_configuration
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189 FOR ALL TO waterway_admin
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190 USING (
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191 users.current_user_country() = (
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192 SELECT country FROM users.list_users lu
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193 WHERE lu.username = waterway.import_configuration.username));
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194
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195 CREATE POLICY import_configuration_policy_sys_admin ON waterway.import_configuration
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196 FOR ALL TO sys_admin
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197 USING (true);
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198
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199 ALTER table waterway.import_configuration ENABLE ROW LEVEL SECURITY;
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200
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201 CREATE POLICY parent_allowed ON waterway.import_configuration_attributes
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202 FOR ALL TO waterway_admin
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203 USING (import_configuration_id IN (
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204 SELECT id FROM waterway.import_configuration))
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205 WITH CHECK (
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206 waterway.is_new_key('import_configuration', import_configuration_id)
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207 OR import_configuration_id IN (
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208 SELECT id FROM waterway.import_configuration));
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209 ALTER table waterway.import_configuration_attributes ENABLE ROW LEVEL SECURITY;
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210
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211 COMMIT;