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/ distance.sql
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November 3, 2016 00:28
— forked from Usse/distance.sql
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| DELIMITER // | |
| CREATE FUNCTION `lat_lng_distance` (lat1 FLOAT, lng1 FLOAT, lat2 FLOAT, lng2 FLOAT) | |
| RETURNS FLOAT | |
| DETERMINISTIC | |
| BEGIN | |
| RETURN 6371 * 2 * ASIN(SQRT( | |
| POWER(SIN((lat1 - abs(lat2)) * pi()/180 / 2), | |
| 2) + COS(lat1 * pi()/180 ) * COS(abs(lat2) * | |
| pi()/180) * POWER(SIN((lng1 - lng2) * |
natxet
/ gist:9e23fa66b3a93680296d
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August 29, 2015 14:13
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