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heuristic to find wrong coordinates and / or wrong iso-codes
by
Herzi Pinki
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Herzi Pinki
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SQL
describe geo_tags; set @ns:=0; #use commonswiki_p;set @ns:=6; set @iso1:='AT'; #set @iso2:='' or code set @iso2:='6'; select gt_page_id, p1.page_namespace as ns, p1.page_title as title, gt_country,gt_region FROM geo_tags AS g1 JOIN page AS p1 ON g1.gt_page_id = p1.page_id, avg(gt_lat) cen_gt_lat,avg(gt_lon) cen_gt_lon,count(*) from geo_tags where case when @iso2='' then gt_country=@iso1 and gt_region is null else gt_country=@iso1 and gt_region=@iso2 end
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