sql - Big Mysql table optimization -


i have table use cache google translate api answers. table structure db structure

now has more 1million rows 35000 distinct values in group field. query type use is:

select `orig_string`, `group`, `translated` `google_translate_cache`      (`group` = "?" ,         ((`orig_string` = "?")       or (`orig_string` = "?")       or (`orig_string` = "?") ....

now every query take more 2 seconds.

i have tried change query union one, result same.

in addition tried partition table - 

alter table `google_translate_cache`     partition key(`orig_string`)     partitions 26;

but not successful.

any suggestion speed it?

i may wrong, don't think partitioning of table on "orig_string" want. instead, compound index on (group, orig_string) optimize where clause qualifier. now, group column -- 255 capacity? large required when original string being tested maxes out @ 100? having index of might cause bit of lag, cant definitively lack of knowledge of actual content.

i start compound index , not partition in way indicated.


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