Why is ' 2' > '10'?

Question

Why is \' 2\' with an initial space bigger than \'10\'?

select \' 2\' > \'10\';
 ?column? 
----------
 t
(1 row)

I tried i

Answer 1

I think this has to do with locale settings.

According to PostgreSQL docs: Locale Support:

The locale settings influence the following SQL features:

• Sort order in queries using ORDER BY on textual data
• The ability to use indexes with LIKE clauses
• The upper, lower, and initcap functions
• The to_char family of functions