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Select DISTINCT individual columns in django?
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in the tests, this is can_distinct_on_fields which appears to be Postgres-only
– Skylar Saveland
Feb 18 '13 at 2:02
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Can not connect to local PostgreSQL
...ile permissions to access the socket file. To confirm this I've done some tests on Ubuntu and psql to try to generate the same error (included below).
You need to check the permissions on the socket file and its directories /var and /var/pgsql_socket. Your Rails app (OSX user) must have execute (...
What's the difference between “static” and “static inline” function?
...t have that information readily available and don't have time to setup and test lots of gcc versions at the moment, but I agree it would be useful information to have. You could probably find when gcc first started optimizing out unused static functions/objects by looking at the history of attribute...
Why is my Spring @Autowired field null?
... // TODO Auto-generated method stub
System.out.println("test");
ApplicationContext ctx=new ClassPathXmlApplicationContext("spring.xml");
System.out.println("ctx>>"+ctx);
Customer c1=null;
MyDemo myDemo=ctx.getBean(MyDemo.class...
Move assignment operator and `if (this != &rhs)`
...s to either client.
The key to satisfying both clients is to build the fastest operations in at the lowest level, and then to add API on top of that for fuller features at more expense. I.e. you need the strong exception guarantee, fine, you pay for it. You don't need it? Here's a faster solutio...
Is BCrypt a good hashing algorithm to use in C#? Where can I find it? [closed]
...much more sense to use Argon2 these days anyway, for which there is a well-tested C# library
– Polynomial
Jan 2 '17 at 21:43
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invalid target release: 1.7
...ion 2503658 and the use of the $JAVACMD variable might help but I haven't tested it myself.
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Default string initialization: NULL or Empty? [closed]
...lid values will make your code easier to understand. This is why I always test booleans with "if (var)," pointers with "if (var != NULL)" and integers with "if (var != 0)" -- they all mean the same thing to the compiler, but they carry additional information that helps the poor developer who mainta...
Show data on mouseover of circle
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The latest d3-tip supports d3v4 just fine. It's not obvious if you google around, but it is working great for me with d3v4.
– moodboom
Apr 6 '17 at 3:04
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Catching error codes in a shell pipe
...n something like:
0 1 0
and something like this run after the command:
test ${PIPESTATUS[0]} -eq 0 -a ${PIPESTATUS[1]} -eq 0 -a ${PIPESTATUS[2]} -eq 0
will allow you to check that all commands in the pipe succeeded.
sh...