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What is sharding and why is it important?
...y be possible to infer the appropriate shard membership easily and automatically, and query only the relevant shard.
Some more information about sharding:
Firstly, each database server is identical, having the same table structure. Secondly, the data records are logically split up in a sharded...
Exif manipulation library for python [closed]
...on library for python. I prefer flexibility (e.g., ability to retrieve providers' proprietary tags) than processing speed. What would you suggest?
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JavaScript listener, “keypress” doesn't detect backspace?
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The keypress event might be different across browsers.
I created a Jsfiddle to compare keyboard events (using the JQuery shortcuts) on Chrome and Firefox. Depending on the browser you're using a keypress event will be triggered or not -- backspace will trigger keydown/keypress/keyup on Firefox ...
Update a submodule to the latest commit
...bmodule update when someone else updated the projA(you'll get a new commit id).
– Kjuly
Nov 19 '11 at 3:09
i own the s...
In .NET, which loop runs faster, 'for' or 'foreach'?
...st with foreach than it does to loop through an array with for, and you're calling that insignificant? That kind of a performance difference might matter for your application, and it might not, but I wouldn't just dismiss it out of hand.
– Robert Harvey
Dec 23 ...
Continuously read from STDOUT of external process in Ruby
...-time, and the stdout doesn't seem to be buffered. It's only buffered when called from another process I believe, but if a shell is being dealt with, the stdout is seen in real time, unbuffered.
This behavior can even be observed with a ruby process as the child process whose output must be collect...
dropping infinite values from dataframes in pandas?
...the subset and how arguments of dropna , except with inf values considered missing, like:
7 Answers
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Bomb dropping algorithm
... to bomb the hollow rectangle of
squares just inside the perimeter. I'll call the perimeter layer 1, and the rectangle inside it layer 2.
An important insight is that there is no point bombing layer 1, because the
"blast radius" you get from doing so is always contained within the blast radius o...
Bitwise operation and usage
...he lower level layer of communication, the data is usually sent in what is called frames. Frames are just strings of bytes that are sent through a physical channel. This frames usually contain the actual data plus some other fields (coded in bytes) that are part of what is called the header. The hea...
How can I select from list of values in SQL Server
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Side-note: X is alias for table name and a is alias for column name ;).
– shA.t
Dec 26 '15 at 7:19
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