红色代表什么?

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select * from tbl_Articles WHERE ArticleID=2862710 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=2862710 LIMIT 0,1
select * from tbl_Articles_sphinx where id=2862710 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(2148101,2273195,1054679,1551947,1032473,2209571,937316,2031496,1934829,567798,1163133,1813605,1879279,3038967,762261,1897964,919537,1172832,386275,1083244,2289865,706887,2108589,840364,81375,1733408,417718,368343,774103,375745) ORDER BY field (ArticleID,2148101,2273195,1054679,1551947,1032473,2209571,937316,2031496,1934829,567798,1163133,1813605,1879279,3038967,762261,1897964,919537,1172832,386275,1083244,2289865,706887,2108589,840364,81375,1733408,417718,368343,774103,375745)