Lost connection to MySQL server during query<br>select id,classid,ttid,onclick,plnum,totaldown,newspath,filename,userid,username,firsttitle,isgood,ispic,istop,isqf,ismember,isurl,truetime,lastdotime,havehtml,groupid,userfen,titlefont,titleurl,stb,fstb,restb,keyboard,title,newstime,jiance,biaozhunleixing,chubanshe,isbn,chubanshijian,tushumulu,titlepic,softwriter,softfj,language,softtype,softsq,star,filetype,filesize,softsay from ***_ecms_download where classid in (42,43,44,45,46,47,48,49,50,51) order by newstime DESC limit 2710,10