问题
I am changing from MySQL to PostgreSQL but can't find equivalent to MySQL's collation utf8_general_ci. What I'm trying to achieve here is to be able to compare strings using general language rules rather then binary comparison, i.e. í = i, š = s, ḩ = h, etc...
Is there a way how to make PostgreSQL search for strings using general language rules?
Many thanks!
回答1:
This is, basically, what most modern postgresql installations will do for you by default. But you may also be interested in initdb options --locale, --lc-collate, etc. (most of those, if not all can also be changed after the database is initialized using .conf file).
You can also specify encoding and IIRC LC_COLLATE and friends when creating database.
来源：https://stackoverflow.com/questions/1423378/postgresql-utf8-character-comparison