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When should I use a composite index?

...in the original post. My query is to return homes within a square grid. I know about spatial and I'm not trying to calculate distances. I simply want to know if using a composite index make sense when I'm trying to display all homes within a particular geo grid (e.g. neighborhood/city/county) ...
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How do I add a simple onClick event handler to a canvas element?

...hat would represent your canvas elements and be positioned the same way. Now you can attach event listeners to these divs and run the necessary actions. share | improve this answer | ...
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python multithreading wait till all threads finished

... okay, i see. now i understand, was a bit confused about it but i think i understand, join sort of attaches the current process to the thread and waits till its done, and if t2 finishs before t1 then when t1 is done it will check for t2 be...
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How do I change the default port (9000) that Play uses when I execute the “run” command?

... I believe right now this is only for 1.x, not yet implemented in 2.0 beta – Pere Villega Nov 21 '11 at 8:31 18 ...
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What is the difference in maven between dependency and plugin tags in pom xml?

...code when the dependencies are present in the classpath. I hope it's clear now. – r9891 Feb 6 '19 at 16:08  |  show 2 more comments ...
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Using Panel or PlaceHolder

...needed to see why these tags were used where. the developer for a module (now mysteriously disappeared :) ) just has these dynamically created in the code behind. I've never used them before, having been a JavaScript front end guy for the last 7 years or so. Thanks for the great input. ...
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Python syntax for “if a or b or c but not all of them”

...le which fits better with the original interface implied in the question. Now it is bending the tool to meet the available spec ... ;) – wim May 14 '13 at 2:11 2 ...
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Static way to get 'Context' in Android?

... Context getAppContext() { return MyApplication.context; } } Now everywhere call MyApplication.getAppContext() to get your application context statically. share | improve this answer ...
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How do I get started with Node.js [closed]

...le for free here: ofps.oreilly.com/titles/9781449398583 forever. It's also now an ebook and print. – sh1mmer May 20 '12 at 19:36 57 ...
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no gravity for scrollview. how to make content inside scrollview as center

...;/ScrollView> Just remember that the reason it is being centered here now is because of the android:gravity on the LinearLayout since the ScrollView will stretch the LinearLayout so keep that in mind depending on what you add to the layout. Another good read on ScrollView although not about ce...