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giacecco/gist:da4ac2fb282d4c6f2c44

Last active August 29, 2015 14:23
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gistfile1.sql
DROP TABLE IF EXISTS temp_active_postcodes;
CREATE TABLE temp_active_postcodes AS (
SELECT DISTINCT id AS pcd
FROM os_open_names
WHERE local_type = 'Postcode' AND country IN ('England', 'Wales')
);
SELECT COUNT(pcd) FROM temp_active_postcodes;
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