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By dotCore
via craigkerstiens.com
Published: Apr 18 2013 / 09:40

In almost any application it’s common to want to aggregate some set of values together, commonly in a comma separated form. Most developers do this by running a query to get much of the raw data, looping over the data and pushing it into a set, appending each new value to the appropriate key. Hopefully, it’s not a surprise that there’s a much better way to do this with PostgreSQL.
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