变异系数法

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select * from tbl_Articles WHERE ArticleID=478270 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=478270 LIMIT 0,1
select * from tbl_Articles_sphinx where id=478270 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(516634,1845252,1779275,1171088,2524455,390785,782597,659903,430722,671883,1196997,602792,1114597,2110186,684278,1835796,460210,3296765,2485006,2025431,1370985,783077,1069836,919272,576235,2106821,2011273,1759229,493873,3166144) ORDER BY field (ArticleID,516634,1845252,1779275,1171088,2524455,390785,782597,659903,430722,671883,1196997,602792,1114597,2110186,684278,1835796,460210,3296765,2485006,2025431,1370985,783077,1069836,919272,576235,2106821,2011273,1759229,493873,3166144)