给出N口井的坐标，把距离小于给定值的分为一组。只要一口井与这一组中有一口井小于给定距离，则它属于这组-N wells given the coordinates, distance less than the given value is divided into one group. As long as a well and the group has a well less than a given distance, it belongs to this group
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.010260s ]
SELECT `a`.`aid`,`a`.`title`,`a`.`create_time`,`m`.`username` FROM `jrk_downrecords` `a` INNER JOIN `jrk_member` `m` ON `a`.`uid`=`m`.`id` WHERE `a`.`status` = 1 GROUP BY `a`.`aid` ORDER BY `a`.`create_time` DESC LIMIT 10 [ RunTime:0.183043s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002546s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001181s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000914s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003228s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000865s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.004024s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.016224s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001214s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 116808 [ RunTime:0.159357s ]
