LIKE search and performance
| От | Andy |
|---|---|
| Тема | LIKE search and performance |
| Дата | |
| Msg-id | 009501c79d4c$445428f0$0b00a8c0@mpsro.dom обсуждение исходный текст |
| Ответы |
Re: LIKE search and performance
Re: LIKE search and performance Re: LIKE search and performance Re: LIKE search and performance |
| Список | pgsql-performance |
Hi,
I have a table with varchar and text columns, and I have to search through these text in the whole table.
An example would be:
SELECT * FROM table
WHERE name like '%john%' or street like '%srt%'
Anyway, the query planner always does seq scan on the whole table and that takes some time. How can this be optimized or made in another way to be faster?
I tried to make indexes on the columns but no success.
PG 8.2
Regards,
Andy.
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