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This script shows the top 10 worst indexes (in terms of selectivity %) on the whole MySQL server instance. Selectivity is the percentage of distinct values in an indexed field compared to the number of records in the table.
Note that this query can...
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posted 14 years ago by Eloi
Splitting table users in frequently and infrequently accessed attributes
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997
posted 14 years ago by Eloi
Saving the IP as Int we save a lot of space and permit do beautibul selects
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posted 14 years ago by Eloi