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pg guide, minor copy edits
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@ -8,6 +8,7 @@ After reading this guide, you will know:
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* How to use PostgreSQL's datatypes.
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* How to use UUID primary keys.
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* How to implement full text search with PostgreSQL.
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* How to back your Active Record models with views.
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--------------------------------------------------------------------------------
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@ -324,7 +325,8 @@ macbook.address
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* [type definition](http://www.postgresql.org/docs/9.3/static/datatype-geometric.html)
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All geometric types are mapped to normal text.
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All geometric types, with the exception of `points` are mapped to normal text.
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A point is casted to an array containing `x` and `y` coordinates.
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UUID Primary Keys
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@ -428,7 +430,7 @@ second = Article.create! title: "Brace yourself",
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Article.count # => 1
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first.archive!
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p Article.count # => 2
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Article.count # => 2
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```
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NOTE: This application only cares about non-archived `Articles`. A view also
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