59+1等于多少？是什么意思

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select * from tbl_Articles WHERE ArticleID=4859537 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=4859537 LIMIT 0,1
select * from tbl_Articles_sphinx where id=4859537 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(4968537,4968536,4968465,4968464,4968463,4968462,4968461,4968460,4968292,4968290,4968289,4968276,4968274,4968273,4968272,4968271,4968270,4968269,4968268,4968265,4968264,4968262,4968207,4968205,4968203,4968202,4968201,4968200,4968199,4968198) ORDER BY field (ArticleID,4968537,4968536,4968465,4968464,4968463,4968462,4968461,4968460,4968292,4968290,4968289,4968276,4968274,4968273,4968272,4968271,4968270,4968269,4968268,4968265,4968264,4968262,4968207,4968205,4968203,4968202,4968201,4968200,4968199,4968198)