How to make LIKE clause case-insensitive?

Question

I'm using a LIKE clause in Ruby On Rails. When I try to search for records by typing "more" it doesn't return anything, but when I do with "More", then it returns the records which contains More keyword, so it seems like it behaves in a case-sensitive way.

Is it possible to make this case-insensitive?

Here is the query I am using currently:

Job.where('title LIKE ? OR duration LIKE ?', "%#{params[:search]}%", "%#{params[:search]}%")

Answer 1

I assume you're using Postgres.

You can use ILIKE

Job.where('title ILIKE ? OR duration ILIKE ?', "%#{params[:search]}%", "%#{params[:search]}%")

Or a some tricky hack lower():

Job.where('lower(title) LIKE lower(?) OR lower(duration) LIKE lower(?)', "%#{params[:search]}%", "%#{params[:search]}%")