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postgresql - sql - count of `true` values

... You can actually omit ELSE null to get the same result. – 200_success May 12 '16 at 18:26  |...
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How to find the type of an object in Go?

... type we have access to the full reflection capabilities type assertions - allows grouping types, for example recognize all int32, int64, uint32, uint64 types as "int" share | improve this answer ...
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Making your .NET language step correctly in the debugger

... might help. VS (2008+) can-to run as a non-admin Do any symbols load at all the second time around? You might test by breaking in (through exception or call System.Diagnostic.Debugger.Break()) Assuming that symbols load, is there a repro that you could send us? The likely difference is that the s...
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Using Default Arguments in a Function

...= "some other value"; } code here! } This way, you can make a call like foo('blah', null, 'non-default y value'); and have it work as you want, where the second parameter $x still gets its default value. With this method, passing a null value means you want the default value for one par...
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Remove the legend on a matplotlib figure

....0rc4, a remove method has been added to the legend object. Usage: ax.get_legend().remove() or legend = ax.legend(...) ... legend.remove() See here for the commit where this was introduced. share | ...
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NodeJS - What does “socket hang up” actually mean?

... socket hang up] code: 'ECONNRESET' } at ClientRequest.proxyError (your_server_code_error_handler.js:137:15) at ClientRequest.emit (events.js:117:20) at Socket.socketCloseListener (http.js:1526:9) at Socket.emit (events.js:95:17) at TCP.close (net.js:465:12) Line http.js:1526:9...
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How to write :hover condition for a:before and a:after?

... This depends on what you're actually trying to do. If you simply wish to apply styles to a :before pseudo-element when the a element matches a pseudo-class, you need to write a:hover:before or a:visited:before instead. Notice the pseudo-element comes after ...
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How do I install Maven with Yum?

...b/apache/maven/maven-3/3.0.5/binaries/apache-maven-3.0.5-bin.tar.gz basically just go to the maven site. Find the version of maven you want. The file type and use the mirror for the wget statement above. Afterwards the process is easy Run the wget command from the dir you want to extract maven ...
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Automatically add all files in a folder to a target using CMake?

... An alternative to manually re-running cmake is to touch the CMakeLists.txt file before running make. – Seamus Connor Oct 1 '15 at 16:38 ...
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Pushing read-only GUI properties back into ViewModel

... I wonder if you could do some trickery to automatically attach the properties, without needing Observe. But this looks like a fine solution. Thanks! – Joe White Jul 5 '09 at 12:58 ...