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Displaying posts with tag: column order (reset)

MySQL Indexes – Multi-column indexes and order of columns
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posted by Ovais Tariq on Tue 25 May 2010 19:31 UTC
Tags:
(edit) mysql, optimization, indexes, column order, mutli-column indexes
The problem: Many a times people find that they create index but the query is still slow or the index is not being used by MySQL to fetch the result-set. Mostly the reason is that the index is not created properly, either not the right columns being indexed or the order of columns in the index does not match how its being used in the query. The order of index! What’s that. Well that’s what we will be discussing today. How does the order of column in the index matter? The order of columns in the index matters a lot,...
Showing entries 1 to 1

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