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Why is iterating through a large Django QuerySet consuming massive amounts of memory?

...ctually iterate over. Then you have everything in memory, and the results come spilling out. From my reading of the docs, iterator() does nothing more than bypass QuerySet's internal caching mechanisms. I think it might make sense for it to a do a one-by-one thing, but that would conversely requi...
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Bill Gross超火爆演讲: 创业成功唯一最关键因素 - 资讯 - 清泛网 - 专注C/C++及内核技术

...公司,分别是:Citysearch、CarsDirect、GoTo、NetZero 和 Tickets.com ,他们都是价值十亿美元级别的公司;然后,我又在 IdeaLab 里挑了五家最不成功的公司,分别是:Z.com、Insider Pages、MyLife、Desktop Factory、Peoplelink,我们曾对他们期望很...
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How to Select Every Row Where Column Value is NOT Distinct

...s that second SELECT...WHERE call many times. See more here: stackoverflow.com/q/9253244/550975 – Serj Sagan Dec 6 '19 at 18:38 ...
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What is `mt=8` in iTunes links for the App Store?

... +1 Thanks for this. For the commenter above, in case you haven't figured out, ls=1 means the URL will try and open iTunes and follow the link. If ls=1 is not included it will simply load the web page for that particular media asset. ...
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Child inside parent with min-height: 100% not inheriting height

...tent height), and this element is not absolutely positioned, the value computes to 'auto'. If I put a min-height on my container, I'm not explicitly specifying its height - so my element should get an auto height. And that's exactly what Webkit - and all other browsers - do. Second, the worka...
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Which version of C# am I using

... If I would be using python I would do something like python -V from the command line, or type: 16 Answers ...
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Clear icon inside input text

...mes;</i> </span> <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> Using only a <input class="clearable" type="text"> (No additional elements) set a class="clearable" and play with it's background image: /** ...
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scp (secure copy) to ec2 instance without password

...rder. This works: scp -i mykey.pem somefile.txt root@my.ec2.id.amazonaws.com:/ share | improve this answer | follow | ...
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Set value of hidden field in a form using jQuery's “.val()” doesn't work

...s this may contribute to any problems you're having, and specifying a more complicated selector just slows things down and doesn't look as neat. Example at http://jsbin.com/elovo/edit, using your example code at http://jsbin.com/elovo/2/edit ...
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Close Window from ViewModel

... You can pass the window to your ViewModel using the CommandParameter. See my Example below. I've implemented an CloseWindow Method which takes a Windows as parameter and closes it. The window is passed to the ViewModel via CommandParameter. Note that you need to define an x:N...