不知何时已而不虚是什么意思

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select * from tbl_Articles WHERE ArticleID=2200198 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=2200198 LIMIT 0,1
select * from tbl_Articles_sphinx where id=2200198 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(2819432,1074532,1076277,1068734,1470537,1051435,2720126,1593584,1052287,2748698,2871838,2726835,1071259,1065091,1079437,2301764,1071645,2570957,1056858,1484624,2501382,2624589,1132037,1501819,996794,2220674,1071954,1467718,1071199,1077080) ORDER BY field (ArticleID,2819432,1074532,1076277,1068734,1470537,1051435,2720126,1593584,1052287,2748698,2871838,2726835,1071259,1065091,1079437,2301764,1071645,2570957,1056858,1484624,2501382,2624589,1132037,1501819,996794,2220674,1071954,1467718,1071199,1077080)