[nycphp-talk] Paging Strategies
Dell Sala
dell at sala.ca
Thu Oct 18 15:05:56 EDT 2007
Every time I implement paging for search results I end up using
different approaches, but I'm never happy with any of them. Am I
missing a simpler, more "correct" solution here? Here's what I've tried:
1) TWO-QUERY APPROACH
on every page view:
- step 1: execute search query with a "SELECT count(*) " to get the
total record count
- step 2: run the search again with the appropriate LIMIT clause to
retrieve the records I need for the current page
2) ONE QUERY, SEEK TO RESULTS
on every page view:
- step 1: execute search query
- step 2: use *_data_seek() to move to the right slice of results for
the current page
3) ONE QUERY, CACHE EVERYTHING
on the first page view:
- execute search query, fetch all results, and cache them
on every other page view:
- retrieve the right slice of results from the cache
-- Dell
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