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What is Full Text Search vs LIKE

...he term. Full text search is optimized to compute the intersection, union, etc. of these record sets, and usually provides a ranking algorithm to quantify how strongly a given record matches search keywords. The SQL LIKE operator can be extremely inefficient. If you apply it to an un-indexed column...
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How to check version of python modules?

...import lxml; print(lxml.__version__)" Traceback (most recent call last): File "<string>", line 1, in <module> AttributeError: 'module' object has no attribute '__version__' Lastly, as the commands in your question are prefixed with sudo, it appears you're installing to the global pyt...
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Passing argument to alias in bash [duplicate]

...finition (for each defined alias, keyword, function, builtin or executable file): type -a foo Or type only (for the highest precedence occurrence): type -t foo share | improve this answer ...
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Does “display:none” prevent an image from loading?

...rom the blog post: Chrome and Safari (WebKit): WebKit downloads the file every time except when a background is applied through a non-matching media-query. Firefox: Firefox won't download the image called with background image if the styles are hidden but they will still download assets ...
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Python Infinity - Any caveats?

...07807929942597e+154 >>> _**2 Traceback (most recent call last): File "<stdin>", line 1, in ? OverflowError: (34, 'Numerical result out of range') The inf value is considered a very special value with unusual semantics, so it's better to know about an OverflowError straight away th...
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What is the fastest factorial function in JavaScript? [closed]

...al benefit of not having the full precision numbers in the code is reduced file size. – le_m Mar 9 '17 at 17:28 Your s...
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Regular Expressions and negating a whole character group [duplicate]

...n a specific sequence of characters. I've tried using [^ab] , [^(ab)] , etc. to match strings containing no 'a's or 'b's, or only 'a's or only 'b's or 'ba' but not match on 'ab'. The examples I gave won't match 'ab' it's true but they also won't match 'a' alone and I need them to. Is there some...
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How to strip all whitespace from string

...acters, for example: non-breaking space, em space, ideographic space, ...etc. See the full list here, under "Unicode characters with White_Space property". However \s DOES NOT cover characters not classified as whitespace, which are de facto whitespace, such as among others: zero-width joiner, Mo...
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How can I get device ID for Admob

...g XML layout and if you already have "ads:testDevices=" in your layout XML file, AdMob will NOT print the "To get test ads on this device..." message in the LogCat output. Take that out and then you will see the LogCat message. Here is a nice tutorial on how to find device id in LogCat: http://web...
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How to kill all processes with a given partial name? [closed]

...34, and 345, you can kill 123 234 345 just like you can rm or cat multiple file arguments. – tripleee Jul 9 '12 at 7:49 ...