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Storing time-series data, relational or non?

...s to the disk space used. You can get rid of it. Please. Elevation Now that you have removed the impediment, you may not have recognised it, but your table is in Sixth Normal Form. Very high speed, with just one Index on the PK. For understanding, read this answer from the What is Sixth Nor...
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Do any JVM's JIT compilers generate code that uses vectorized floating point instructions?

... So, basically, you want your code to run faster. JNI is the answer. I know you said it didn't work for you, but let me show you that you are wrong. Here's Dot.java: import java.nio.FloatBuffer; import org.bytedeco.javacpp.*; import org.bytedeco.javacpp.annotation.*; @Platform(include = "Dot.h...
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How do I add a library project to Android Studio?

... dependency. It won’t mess in your project structure. Almost every well-known Android library is available in a Maven repository and its installation takes only one line of code in the app/build.gradle file: dependencies { compile 'com.jakewharton:butterknife:6.0.0' } Adding the library H...
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Concrete Javascript Regex for Accented Characters (Diacritics)

...and E, but I left them out because only historians seem interested in them now, and the D and E sets don't even render correctly in my browser. The original regex stopping at \u017F borked on the name "Șenol". According to FontSpace's Unicode Analyzer, that first character is \u0218, LATIN CAPITAL...
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Bootstrap 3 and 4 .container-fluid with grid adding unwanted padding

...g-left: 0; padding-right: 0; margin-left: 0; margin-right: 0} As far as I know, there is no predefined class to remove the default 15px padding – PArt Aug 24 '14 at 11:41 ...
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How to un-commit last un-pushed git commit without losing the changes

...t those changes are still visible in the history) git push origin master now if you want to have those changes as you local changes in your working copy ("so that your local copy keeps the changes made in that commit") - just revert the revert commit with --no-commit option: git revert --no-commi...
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Running shell command and capturing the output

...ompared to the old way of doing things. But I think it's worth the payoff: now you can do almost anything you need to do with the run function alone. Older versions of Python (2.7-3.4): check_output If you are using an older version of Python, or need modest backwards compatibility, you can probab...
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System.Timers.Timer vs System.Threading.Timer

...at the time I made the comment this answer had almost no detail. Since it now has the detail I was inquiring about, I deleted my comment. – Taegost Dec 19 '16 at 14:14 1 ...
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Python __call__ special method practical example

I know that __call__ method in a class is triggered when the instance of a class is called. However, I have no idea when I can use this special method, because one can simply create a new method and perform the same operation done in __call__ method and instead of calling the instance, you can c...
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CSS Selector for

... Ok I had tried this but it didn't work now it is working so I must have my syntax messed up. – JoshBerke Jan 22 '09 at 21:07 ...