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How to create index on JSON field in Postgres?
In PostgreSQL 9.3 Beta 2 (?), how do I create an index on a JSON field? I tried it using the -> operator used for hstore but got the following error:
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Calculating moving average
I'm trying to use R to calculate the moving average over a series of values in a matrix. The normal R mailing list search hasn't been very helpful though. There doesn't seem to be a built-in function in R will allow me to calculate moving averages. Do any packages provide one? Or do I need to writ...
Do I set properties to nil in dealloc when using ARC?
I am trying to learn Automatic Reference Counting in iOS 5. Now the first part of this question should be easy:
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Differences between utf8 and latin1
what is the difference between utf8 and latin1?
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Cross-referencing commits in github
I'd like to reference commits in other repos (in this case submodules) in the github issues of my main repo. Is it possible to do so without typing the full hyperlink in a way similar to how github creates a shortened hyperlink from the commit number?
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Node.js + Express: Routes vs controller
New to Node.js and Express, I am trying to understand the two seems overlapping concepts, routes vs controller.
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How to change owner of PostgreSql database?
I need to change the owner of PostgreSql database.
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Can I do a partial revert in GIT
Is it possible to revert only a single file or certain changes in a file in multi file commit?
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Webfont Smoothing and Antialiasing in Firefox and Opera
I have custom-made web fonts used on my site. To style my rendering output, I used the following code:
8 Answers
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Is there a Newline constant defined in Java like Environment.Newline in C#?
In C# there is the static property Environment.Newline that changed depending on the running platform.
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