How to restrict text search to a certain subset of the database ?

Posted by Nikhil Garg on Stack Overflow See other posts from Stack Overflow or by Nikhil Garg
Published on 2010-06-01T09:15:31Z Indexed on 2010/06/01 10:33 UTC
Read the original article Hit count: 324

Filed under:

mysql

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ruby-on-rails

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full-text-search

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sphinx

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thinking-sphinx

I have a large central database of around 1 million heavy records. In my app, for every user I would have a subset of rows from central table, which would be very small (probably 100 records each).When a particular user has logged in , I would want to search on this data set only. Example:

Say I have a central database of all cars in the world. I have a user profile for General Motors(GM) , Ferrari etc. When GM is logged in I just want to search(a full text search and not fire a sql query) for those cars which are manufactured by GM. Also GM may launch/withdraw a model in which case central db would be updated & so would be rowset associated with GM. In case of acquisitions, db of certain profiles may change without launch/removal of new car. So central db wont change then , but rowsets may.

Whats the best way to implement such a design ? These smaller row sets would need to be dynamic depending on user activities.

We are on Rails 2.3.5 and use thinking_sphinx as the connector and Sphinx/MySQL for search and relational associations.

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