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Query a parameter (postgresql.conf setting) like “max_connections”
.... The manual:
This parameter can only be set at server start.
To see all settings:
SHOW ALL;
There is also pg_settings:
The view pg_settings provides access to run-time parameters of the
server. It is essentially an alternative interface to the SHOW and
SET commands. It also provide...
Origin is not allowed by Access-Control-Allow-Origin
...rstand the underlying security issue. In my case, 2 servers are running locally, and like to enable cross domain requests during testing.
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WPF global exception handler [duplicate]
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You can handle the AppDomain.UnhandledException event
EDIT: actually, this event is probably more adequate: Application.DispatcherUnhandledException
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How To Test if Type is Primitive
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This is great, I had to manually add Guid for my own purposes (as a primitive in my definition).
– Erik Philips
Jul 27 '12 at 22:54
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Authentication issue when debugging in VS2013 - iis express
...n. These settings control what authentication mechanisms the web sites are allowed to use.
– chiccodoro
Feb 11 '14 at 16:22
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What Makes a Method Thread-safe? What are the rules?
Are there overall rules/guidelines for what makes a method thread-safe? I understand that there are probably a million one-off situations, but what about in general? Is it this simple?
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When does System.gc() do something?
...hat garbage collection is automated in Java. But I understood that if you call System.gc() in your code that the JVM may or may not decide to perform garbage collection at that point. How does this work precisely? On what basis/parameters exactly does the JVM decide to do (or not do) a GC when it ...
Convert light frequency to RGB?
...teachers may have told us (well mine did). Too bad, but in practice not usually fatal.
– Francis Davey
May 29 '10 at 22:58
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Import package.* vs import package.SpecificType [duplicate]
...ld it suppose any difference regarding overhead to write an import loading all the types within one package ( import java.* ); than just a specific type (i.e. import java.lang.ClassLoader )? Would the second one be a more advisable way to use than the other one?
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How can I measure the similarity between two images? [closed]
...is is just to do the following steps to each image:
scale to something small, like 64x64 or 32x32, disregard aspect ratio, use a combining scaling algorithm instead of nearest pixel
scale the color ranges so that the darkest is black and lightest is white
rotate and flip the image so that the ligh...