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How do I force Postgres to use a particular index?
...g you're asking about the common "index hinting" feature found in many databases, PostgreSQL doesn't provide such a feature. This was a conscious decision made by the PostgreSQL team. A good overview of why and what you can do instead can be found here. The reasons are basically that it's a performa...
How can I get dictionary key as variable directly in Python (not by searching from value)?
... this are not turning up anything other than how to get a dictionary's key based on its value which I would prefer not to use as I simply want the text/name of the key and am worried that searching by value may end up returning 2 or more keys if the dictionary has a lot of entries... what I am tryin...
Is the pImpl idiom really used in practice?
...ing compilation) is lost.
Is a good paradigm for classic OOP (inheritance based) but not for generic programming (specialization based).
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Faye vs. Socket.IO (and Juggernaut)
... WebSocket dies.
Please correct me if I've got any of this wrong - this is based on a cursory scan of the Socket.IO documentation.
Faye is just pub/sub, it's just based on a slightly more complex protocol and has a lot of niceties built in:
Server- and client-side extensions
Wildcard pattern-matc...
How to use the same C++ code for Android and iOS?
...lementation:
#include <string.h>
#include "Core.h"
const char *CPP_BASE_STRING = "cpp says hello to %s";
const char *concatenateMyStringWithCppString(const char *myString) {
char *concatenatedString = new char[strlen(CPP_BASE_STRING) + strlen(myString)];
sprintf(concatenatedString, ...
What does placing a @ in front of a C# variable name do? [duplicate]
...cumstances. What are some bizzare circumstances? When auto-generating code based on some ruleset, and not wanting to have a special case for reserved words.
– ripper234
Jul 7 '09 at 22:03
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CSS3 transform not working
...
In webkit-based browsers(Safari and Chrome), -webkit-transform is ignored on inline elements.. Set display: inline-block; to make it work. For demonstration/testing purposes, you may also want to use a negative angle or a transformatio...
How to set session timeout in web.config
...use Roles & Membership classes provided by ASP.NET. They provide Forms-based authentication which is much more reliabletha the normal Session-based authentication you are trying to use.
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Override intranet compatibility mode IE8
... you uncheck this that should resolve the problem and IE will use the mode based on the DOCTYPE.
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What is the purpose of “!” and “?” at the end of method names?
...e object while Enumerable#sort! sorts it in place.
In Rails, ActiveRecord::Base#save returns false if saving failed, while ActiveRecord::Base#save! raises an exception.
Kernel::exit causes a script to exit, while Kernel::exit! does so immediately, bypassing any exit handlers.
Methods ending in ? re...