Mercurial > gemma
annotate schema/gemma_tests.sql @ 4161:64cd18281c76
Improve performance of row level security policies
Using constraint_column_usage instead of key_column_usage makes
the query twice as fast. I did not explore why. Let's just take it.
Using 'EXISTS(... WHERE ... = value) is often more efficient than
value IN(...) since it allows the inner query to be executed only
up to the point where it turns out to return more than nothing with
filtering directly in place.
author | Tom Gottfried <tom@intevation.de> |
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date | Fri, 02 Aug 2019 17:14:13 +0200 |
parents | b785b6bef578 |
children | 9fef9930aa8a |
rev | line source |
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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) 2019 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 Gottfried <tom@intevation.de> |
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13 |
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14 -- |
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15 -- pgTAP test script for gemma schema definition |
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16 -- |
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17 |
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18 SELECT throws_ok($$ |
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19 INSERT INTO waterway.waterway_axis (wtwaxs, objnam) VALUES |
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20 (ST_GeogFromText('LINESTRING(0 0, 1 1)'), 'test'), |
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21 (ST_GeogFromText('LINESTRING(0 0, 1 1)'), 'test') |
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22 $$, |
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23 23505, NULL, |
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24 'No duplicate geometries can be inserted into waterway_axis'); |
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25 |
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26 SELECT throws_ok($$ |
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27 INSERT INTO waterway.waterway_area (area) VALUES |
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28 (ST_GeogFromText('POLYGON((0 0, 0 1, 1 1, 1 0, 0 0))')), |
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29 (ST_GeogFromText('POLYGON((0 0, 0 1, 1 1, 1 0, 0 0))')) |
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30 $$, |
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31 23505, NULL, |
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32 'No duplicate geometries can be inserted into waterway_area'); |