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-rw-r--r--activerecord/lib/active_record/validations/uniqueness.rb3
1 files changed, 0 insertions, 3 deletions
diff --git a/activerecord/lib/active_record/validations/uniqueness.rb b/activerecord/lib/active_record/validations/uniqueness.rb
index 4a80cda0b8..1f59276137 100644
--- a/activerecord/lib/active_record/validations/uniqueness.rb
+++ b/activerecord/lib/active_record/validations/uniqueness.rb
@@ -67,9 +67,6 @@ module ActiveRecord
cast_type = klass.type_for_attribute(attribute_name)
value = cast_type.serialize(value)
value = klass.connection.type_cast(value)
- if value.is_a?(String) && column.limit
- value = value.to_s[0, column.limit]
- end
comparison = if !options[:case_sensitive] && !value.nil?
# will use SQL LOWER function before comparison, unless it detects a case insensitive collation