Flowdock
method

distinct

Importance_1
distinct(value = true) public

Specifies whether the records should be unique or not. For example:

User.select(:name)
# => Might return two records with the same name

User.select(:name).distinct
# => Returns 1 record per distinct name

User.select(:name).distinct.distinct(false)
# => You can also remove the uniqueness
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