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How important is the order of columns in indexes?

...while Column 1 above does negate 1/2 the possibilities, the index already knows which index page to go straight to for the Column2 value, it does not necessary need Column 1 to narrow down the set. – CodeCowboyOrg Mar 23 '15 at 17:57 ...
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Circular (or cyclic) imports in Python

... As of now, the only reference to circular imports in python3 "What's new?" pages is in the 3.5 one. It says "Circular imports involving relative imports are now supported". @meawoppl have you found anything else what is not listed...
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SASS - use variables across multiple files

...y Foundation settings file to start with an underscore and hey presto! But now when I change the filename back again, it's still working? What the....? Oh well... Sighs and accepts it's now working – poshaughnessy Jun 9 '15 at 15:18 ...
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What are the main uses of yield(), and how does it differ from join() and interrupt()?

... or 15ms tick). In Java 6, this behaviour was changed. The Hotspot VM now implements Thread.yield() using the Windows SwitchToThread() API call. This call makes the current thread give up its current timeslice, but not its entire quantum. This means that depending on the priorities of oth...
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Is there a Google Voice API? [closed]

... Its gone now. How did it work and where is it? – 0xcaff Jul 14 '16 at 1:14 ...
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Laravel Eloquent Sum of relation's column

I've been working on a shoppingcart application and now I've come to the following issue.. 4 Answers ...
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How do I edit an incorrect commit message in git ( that I've pushed )?

... good answer. Do you know if you are now able to change already pushed commit messages in newer versions of git? Has anything changed since this was posted in '09? – David West Feb 5 '14 at 15:09 ...
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Is it feasible to compile Python to machine code?

... shedskin has had no work done on it in about two years now. :( – Perkins Aug 27 '18 at 17:58 add a comment  |  ...
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Do Facebook Oauth 2.0 Access Tokens Expire?

... I would like to inform you that fb has changed in his api & now no life time token is available,Now offline access will be active for 60 days. – PrateekSaluja Mar 28 '12 at 13:35 ...
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What's the best way to learn LISP? [closed]

I have been programming in Python, PHP, Java and C for a couple or years now, and I just finished reading Hackers and Painters, so I would love to give LISP a try! ...