Hi,
I have index on multiple columns to get records based on multiple conditions as:
This is the explanation I get:
The indexed columns are (member_id, year, month, type, status), and content_id is the Primary Key.
There are 0.5M+ records in a table, the query is taking around 20 seconds. What changes should I make to get the results faster?
Thanks,
-----------------
I did more experiments and found out that the 'offset' of LIMIT clause is causing all the delay, for example using LIMIT 100, 5 took about 500ms. So, what's the best way of using Limit clause?
I have index on multiple columns to get records based on multiple conditions as:
Code:
Explain SELECT title, data, url, direction
FROM content
WHERE
member_id = 1
AND year = 2012
AND month = 11
AND type='member'
AND status=1
order by content_id DESC
LIMIT 2000, 5Code:
id_home_status,index_id_year_month_type_status index_id_year_month_type_status 87 const,const,const,const,const 5001 Using whereThere are 0.5M+ records in a table, the query is taking around 20 seconds. What changes should I make to get the results faster?
Thanks,
-----------------
I did more experiments and found out that the 'offset' of LIMIT clause is causing all the delay, for example using LIMIT 100, 5 took about 500ms. So, what's the best way of using Limit clause?