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annotate schema/updates/1101/01.improve_del_import.sql @ 4126:52f7264265bb

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Bulk-delete tracked entries per table Especially when many entries in one table are tracked by one import, this makes declining an import a lot faster.
author Tom Gottfried <tom@intevation.de>
date Thu, 01 Aug 2019 17:02:09 +0200
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4126
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1 CREATE OR REPLACE FUNCTION import.del_import(imp_id int) RETURNS void AS
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2 $$
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3 DECLARE
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4 tmp RECORD;
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5 BEGIN
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6 FOR tmp IN
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7 SELECT relation, array_agg(key) AS keys
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8 FROM import.track_imports
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9 WHERE import_id = imp_id AND NOT deletion
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10 GROUP BY relation
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11 LOOP
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12 EXECUTE format('DELETE FROM %s WHERE id = ANY($1)', tmp.relation)
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13 USING tmp.keys;
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14 END LOOP;
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15 END;
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16 $$
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17 LANGUAGE plpgsql;