I\'ve seen a lot of similar questions, but I\'m not seeing a solution that will work for me. Or maybe I\'m just being dense. :) Hopefully someone can help me out.
I need some help in avoiding filesort for this query. SELECT id FROM articles USE INDEX(group开发者_如何学Python)
开发者_JS百科MySQL appears to be not using indexes and is using filesort on the following query:
I am trying to improve a query which does the following: For every job, add up all the costs, add up the invoiced amount, and calculate a profit/loss. The costs come from several different tables, e.
I\'m trying to optimize a query which is taking over 2 seconds to return a response against a database of only 10,000 records.Explain shows it should return almost instantly.I assume the slow performa
Probably I\'m missing some silly thing... Apparently MySQL 5.1 keeps doing a Filesort even when there is an index that matches exactly the column in the ORDER BY clause. To post it here, I\'ve oversim
I\'m planning on creating a view using this SQL SELECT, but the explain for it shows it\'s using temporary and using filesort. I can\'t figure out what indices I need in order to fix this problem.
I have the following query and the following 2 indexes, but I am still getting a filesort.Is there a 开发者_StackOverflowway to optimize this further so that I avoid the filesort, or do I just need to
I still have following problem EXPLAIN EXTENDED SELECT `item`.`id`, `item`.`timestamp`, `item`.`label` FROM
Is there any way how to create an functioning index for开发者_如何学运维 this query and to get rid of \"filesort\"?
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