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How to filter SQL results in a has-many-through relation
...ub_id here.
I named the queries after their author in this thread, with an index where there are two.
I ran all queries a couple of times to populate the cache, then I picked the best of 5 with EXPLAIN ANALYZE.
Relevant indexes (should be the optimum - as long as we lack fore-knowledge which clubs w...
select、poll、epoll之间的区别总结[整理] - C/C++ - 清泛网 - 专注C/C++及内核技术
...le/details/6568969
http://www.ibm.com/developerworks/cn/linux/l-cn-edntwk/index.html?ca=drs-
http://linux.chinaunix.net/techdoc/net/2009/05/03/1109887.shtml
3、epoll
epoll既然是对select和poll的改进，就应该能避免上述的三个缺点。那epoll都是怎么解决的呢？在此之...
What are “first class” objects?
...oordiv__', '__getattribute__', '__getnewargs__', '__hash__', '__hex__', '__index__', '__init__', '__int__', '__invert__', '__long__', '__lshift__', '__mod__', '__mul__', '__neg__', '__new__', '__nonzero__', '__oct__', '__or__', '__pos__', '__pow__', '__radd__', '__rand__', '__rdiv__', '__rdivmod__',...
Utilizing the GPU with c# [closed]
...OpenTK -- dead/Cloo) - many of these are just bindings - ie enable you to call the GPU from C#, but your kernel code (code which is actually run on the GPU) needs to be written in C or OpenCL, meaning you must use (and learn) another language.
As I said, I would recommend Cudafy over all the other...
How to download a file from server using SSH? [closed]
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This actually works with .ssh/config, whereas scp doesn't seem to follow the ssh configuration
– user1115652
Feb 23 '17 at 0:50
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Pretty-print an entire Pandas Series / DataFrame
...ations from string import ascii_letters df = pd.DataFrame(data=[[0]*1326], index=[0], columns=[(a+b) for a,b in combinations(ascii_letters, 2)])
– Andrey Shokhin
Nov 2 '16 at 11:04
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Drawing a connecting line between two elements [closed]
... I need to put the svg at width and height 100% in background using z-index -1 but it works like a charm.
– steven
Mar 18 '16 at 23:15
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Generic List - moving an item within the list
So I have a generic list, and an oldIndex and a newIndex value.
10 Answers
10
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Does C# have extension properties?
...y, yeah, I hate that too, hehe. Especially the inability to have a generic indexer... sigh
– Svish
Mar 6 '09 at 17:51
76
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How to unstage large number of files without deleting the content
...you have a pristine repo (or HEAD isn't set)[1] you could simply
rm .git/index
Of course, this will require you to re-add the files that you did want to be added.
[1] Note (as explained in the comments) this would usually only happen when the repo is brand-new ("pristine") or if no commits ha...