内检是啥意思

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select * from tbl_Articles WHERE ArticleID=3178148 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=3178148 LIMIT 0,1
select * from tbl_Articles_sphinx where id=3178148 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(591593,1041859,1062420,527934,1151936,941124,1168622,1207198,2158820,482693,1065455,962764,889289,1789298,1044024,699643,1173688,1059325,1692055,423397,422030,717553,1757513,1999208,2134482,1196925,756477,945260,1161589,1067129) ORDER BY field (ArticleID,591593,1041859,1062420,527934,1151936,941124,1168622,1207198,2158820,482693,1065455,962764,889289,1789298,1044024,699643,1173688,1059325,1692055,423397,422030,717553,1757513,1999208,2134482,1196925,756477,945260,1161589,1067129)