什么叫证照分离

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select * from tbl_Articles WHERE ArticleID=594100 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=594100 LIMIT 0,1
select * from tbl_Articles_sphinx where id=594100 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(447337,496843,623576,514135,592105,583808,548472,398903,1102084,631097,460826,547797,455409,869983,613114,559913,1039548,495405,371757,1087121,506661,381602,3491998,621392,431523,482809,593696,1091151,390783,404847) ORDER BY field (ArticleID,447337,496843,623576,514135,592105,583808,548472,398903,1102084,631097,460826,547797,455409,869983,613114,559913,1039548,495405,371757,1087121,506661,381602,3491998,621392,431523,482809,593696,1091151,390783,404847)