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Why does PostgreSQL perform sequential scan on indexed column?
Very simple example - one table, one index, one query:
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return query based on date
I have a data like this in mongodb
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How to create a new java.io.File in memory?
How can I create new File (from java.io ) in memory, not on the hard disk?
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C++ Double Address Operator? (&&)
I'm reading STL source code and I have no idea what && address operator is supposed to do. Here is a code example from stl_vector.h :
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NULL vs nullptr (Why was it replaced?) [duplicate]
I know that in C++ 0x or NULL was replaced by nullptr in pointer-based applications. I'm just curious of the exact reason why they made this replacement?
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Detect & Record Audio in Python
I need to capture audio clips as WAV files that I can then pass to another bit of python for processing. The problem is that I need to determine when there is audio present and then record it, stop when it goes silent and then pass that file to the processing module.
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Get city name using geolocation
I managed to get the user's latitude and longitude using HTML-based geolocation.
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How can I specify a local gem in my Gemfile?
I'd like Bundler to load a local gem. Is there an option for that? Or do I have to move the gem folder into the .bundle directory?
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Once upon a time, when > was faster than < … Wait, what?
I am reading an awesome OpenGL tutorial . It's really great, trust me. The topic I am currently at is Z-buffer. Aside from explaining what's it all about, the author mentions that we can perform custom depth tests, such as GL_LESS, GL_ALWAYS, etc. He also explains that the actual meaning of depth v...
How do I select a merge strategy for a git rebase?
git-rebase man page mentions -X&lt;option&gt; can be passed to git-merge . When/how exactly?
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