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How do I force Postgres to use a particular index?
...s doesn't use indexes when datatypes don't match properly, you may need to include appropriate casts.
Your planner settings might be causing problems.
See also this old newsgroup post.
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How to get a variable name as a string in PHP?
... Here you find a better implementation that works over several includes: stackoverflow.com/a/19788805/1069083
– rubo77
Nov 5 '13 at 12:35
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How to print without newline or space?
... for two reasons: it has undesirable side effects which you can't disable (included extra spaces), and It isn't forward compatible with python 3 (the parenthesis force a conversion to a tuple). I expect these sorts of shoddy constructs from PHP, not Python. So it's best to not ever use this.
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How do I generate random number for each row in a TSQL Select?
...er at the end of the expression. Be extra careful if you need a range that includes both positive and negative numbers. If you do it wrong, it's possible to double-count the number 0.
A small warning for the math nuts in the room: there is a very slight bias in this code. CHECKSUM() results in numb...
Why in Java 8 split sometimes removes empty strings at start of result array?
... at the beginning of the input sequence then an empty leading substring is included at the beginning of the resulting array. A zero-width match at the beginning however never produces such empty leading substring.
The same clause is also added to String.split in Java 8, compared to Java 7.
Refere...
sed command with -i option failing on Mac, but works on Linux
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What is the difference between _tmain() and main() in C++?
...PCTSTR resolves to either LPCSTR or LPCWSTR, and for every other type that includes char or wchar_t, a -T- version always exists which can be used instead.
Note that all of this is Microsoft specific. TCHAR is not a standard C++ type, it is a macro defined in windows.h. wmain and _tmain are also de...
In C++, is it still bad practice to return a vector from a function?
...closed, I had ~15GB available when running the test).
Here is the code:
#include <chrono>
#include <iomanip>
#include <iostream>
#include <numeric>
#include <vector>
class Timer {
using clock = std::chrono::steady_clock;
using seconds = std::chrono::duration&...
R command for setting working directory to source file location in Rstudio
... your own answer at stackoverflow.com/a/35842176/1247080 works (one must include the dirname though). I added it
– Stat-R
Apr 15 '16 at 19:15
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How to handle anchor hash linking in AngularJS
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