Mercurial > gemma
view schema/std_login_roles.sql @ 2987:524f1382558a
Make snapping of many axis segments faster
Since a CTE is materialized anyhow, make the one for the UTM projected
axis a temporary table, extended by the precalculated geometry
boundaries and a spatial index on these, which then can be used in
geometry comparisons within the recursive CTE. This makes snapping
several hundreds of segments faster by more than an order of magnitude
at the expense of longer runtime for snapping only very few segments,
because of the additional cost for index creation. This could be
further optimized by first checking if there is a direct match without
any snapping, but since the function is currently only used in import
processes, a runtime of a few seconds seems acceptable.
author | Tom Gottfried <tom@intevation.de> |
---|---|
date | Wed, 10 Apr 2019 10:02:07 +0200 |
parents | 35acb7f9ae0c |
children | 5e38667f740c |
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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> -- * Tom Gottfried <tom@intevation.de> BEGIN; -- -- Standard users for the GEMMA database -- -- NOTE: Passwords for these roles must be set during initial setup of -- the database. -- -- Admin User -- -- We need an empty dummy country for the default admin, as the user is -- not supposed to work on data, it should be only used to create -- personalized accounts. INSERT INTO countries (country_code) VALUES ('--'); INSERT INTO users.responsibility_areas (country, area) VALUES ('--', ST_GeomFromText('MULTIPOLYGON(((0 0, 1 0, 1 1, 0 1, 0 0)))', 4326)); -- This initial Admin account is used to bootstrap the personalized accounts. INSERT INTO users.list_users VALUES ( 'sys_admin', 'sysadmin', :'adminpw', '--', 'BOX(9.52115482500011 46.3786430870001,17.1483378500001 49.0097744750001)', ''); -- -- Functional Users -- -- Used by GeoServer and backend CREATE ROLE meta_login IN ROLE metamorph LOGIN PASSWORD :'metapw'; -- Emit messages to the client if everything went ok SELECT 'Default admin user ''sysadmin'' created with password ' || :'adminpw'; SELECT 'Backend user ''meta_login'' created with password ' || :'metapw'; COMMIT;