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A migration to add unique constraint to a combination of columns
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Actually there is one reason: It is an implementation detail and discouraged by the docs. Also note that you cannot refer to the constraint by name, since it is not added to the pg_constraint table.
– kaikuchn
May 11 '15 at 10:58
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Large Object Heap Fragmentation
...thus would not normally be allocated on the LOH.
It is an implementation detail, but I assume the reason for this is to avoid unnecessary garbage collection of instances that are supposed to survive as long as the process it self.
Also due to a somewhat esoteric optimization, any double[] of 1000...
Xcode 4.5 Storyboard 'Exit'
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You can just login to Apple's iOS Dev Center with your developer account details and then go to the WWDC 2012 videos page and watch "Adopting Storyboard in your App" (it's fifth from the top) The discussion of unwind segues starts at time 37:20.
Update:
Here is some more info on the subject fro...
Which icon sizes should my Windows application's icon include?
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I took some time to check it in detail. I created an icon whose images have sizes of 16, 24, 32, 40, 48, 64, 96, 128 and 256. Then I checked which image is shown. All these were done with normal 96dpi. If using a larger DPI, the larger sizes may be used (on...
Revert a range of commits in git
....2+: see "Rollback to an old commit using revert multiple times." for more details.
The current git revert man page is only for the current Git version (1.7.4+).
As the OP Alex Spurling reports in the comments:
Upgrading to 1.7.4 works fine.
To answer my own question, this is the syntax I was lo...
Difference between “on-heap” and “off-heap”
...han the on-heap store, but still faster than the disk store.
The internal details involved in management and usage of the off-heap store aren't very evident in the link posted in the question, so it would be wise to check out the details of Terracotta BigMemory, which is used to manage the off-disk...
JavaScript: Upload file
...selecting the file open chrome console > network tab to see the request details.
<br><br>
<small>Because in this example we send request to https://stacksnippets.net/upload/image the response code will be 404 ofcourse...</small>
<br><br>
(in stack overflo...
Why doesn't logcat show anything in my Android?
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Maybe you have Mylyn installed?
http://code.google.com/p/android/issues/detail?id=1808
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Creating a URL in the controller .NET MVC
...rl is built after the route engine determine the correct one:
Url.Action("Detail","Opinion",new RouteValueDictionary(new{cid=newop.CompanyID,oid=newop.ID}),HttpContext.Request.Url.Scheme, HttpContext.Request.Url.Authority)
In both methods, the last 2 parameters specifies the protocol and hostname...
How do I explicitly instantiate a template function?
...stion due to code formatting issues. See AnthonyHatchkins' answer for more details.
If you really want to instantiate (instead of specialize or something) the function, do this:
template <typename T> void func(T param) {} // definition
template void func<int>(int param); // explicit i...