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LIMIT :: Longer Time To Execute


When I execute the following query without the LIMIT clause, it executes under 1 second. When I add the LIMIT clause, it takes 10 seconds to complete. The client table contains 100,000 records. What is going on?

SELECT * FROM clients
WHERE rep_id = 1
AND last_name
LIKE '%au%'
ORDER BY first_name
DESC
LIMIT 0 , 10




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