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annotate schema/updates/1426/01.historicise_axis.sql @ 5267:aca4bf7af270

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client: remove mapState from import statement
author Fadi Abbud <fadi.abbud@intevation.de>
date Wed, 10 Jun 2020 16:33:10 +0200
parents e8661379a6c5
children
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cf25b23e3eec Keep historic data of waterway axis
Tom Gottfried <tom@intevation.de>
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1 ALTER TABLE waterway.waterway_axis
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2 ADD validity tstzrange NOT NULL DEFAULT tstzrange(current_timestamp, NULL)
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3 CHECK (NOT isempty(validity)),
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4 ADD last_found timestamp with time zone NOT NULL DEFAULT current_timestamp;
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5
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6 -- Assume existing entries have been valid since last successful import
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7 UPDATE waterway.waterway_axis SET validity = tstzrange(
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8 (SELECT max(changed) FROM import.imports
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9 WHERE kind = 'wx' AND state = CAST('accepted' AS import_state)),
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10 NULL);
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11
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12 DROP TRIGGER waterway_axis_wtwaxs_unique ON waterway.waterway_axis;
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13 CREATE CONSTRAINT TRIGGER waterway_axis_wtwaxs_unique
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14 AFTER INSERT OR UPDATE OF wtwaxs, validity ON waterway.waterway_axis
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15 FOR EACH ROW EXECUTE FUNCTION prevent_st_equals('wtwaxs', 'validity');
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16
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17 CREATE INDEX waterway_axis_validity
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18 ON waterway.waterway_axis USING GiST (validity);
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19
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20 -- No more need to delete
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21 DROP POLICY responsibility_area_delete ON waterway.waterway_axis;