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Postgres: How to do Composite keys?

... NULL, tag_id SERIAL NOT NULL, tag1 VARCHAR(20), tag2 VARCHAR(20), tag3 VARCHAR(20), PRIMARY KEY(question_id, tag_id) ); NOTICE: CREATE TABLE will create implicit sequence "tags_tag_id_seq" for serial column "tags.tag...
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Rails new vs create

... answered Mar 18 '10 at 18:46 Steve WeetSteve Weet 26.4k1010 gold badges6161 silver badges8484 bronze badges ...
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Using Linq to group a list of objects into a new grouped list of list of objects

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How do I fix a merge conflict due to removal of a file in a branch?

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Should have subtitle controller already set Mediaplayer error Android

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How does Chrome's “Request Desktop Site” option work?

...are the User-Agent headers sent by Chrome on my Android device: Mozilla/5.0 (Linux; Android 4.0.4; Galaxy Nexus Build/IMM76K) AppleWebKit/535.19 (KHTML, like Gecko) Chrome/18.0.1025.166 Mobile Safari/535.19 Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/535.19 (KHTML, like Gecko) Chrome/18.0.1025.45 ...
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Convert a python 'type' object to a string

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What exactly does the “u” do? “git push -u origin master” vs “git push origin master”

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Should ol/ul be inside or outside?

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Difference between rake db:migrate db:reset and db:schema:load

...atabases.rake (for Rails 3.2.x) and https://github.com/rails/rails/blob/v4.0.5/activerecord/lib/active_record/railties/databases.rake (for Rails 4.0.x) share | improve this answer | ...