Question

the query i’d like to speed up (or replace with another process):

UPDATE en_pages, keywords
SET en_pages.keyword = keywords.keyword
WHERE en_pages.keyword_id = keywords.id

table en_pages has the proper structure but only has non-unique page_ids and keyword_ids in it. i’m trying to add the actual keywords(strings) to this table where they match keyword_ids. there are 25 million rows in table en_pages that need updating.

i’m adding the keywords so that this one table can be queried in real time and return keywords (the join is obviously too slow for “real time”).

we apply this query (and some others) to sub units of our larger dataset. we do this frequently to create custom interfaces for specific sub units of our data for different user groups (sorry if that’s confusing).

this all works fine if you give it an hour to run, but i’m trying to speed it up.

is there a better way to do this that would be faster using php and/or mysql?

Answer 1

I actually don’t think you can speed up the process.

You can still add brutal power to your database by cluserting new servers.