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-rw-r--r--activerecord/lib/active_record/connection_adapters/column.rb2
1 files changed, 0 insertions, 2 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/column.rb b/activerecord/lib/active_record/connection_adapters/column.rb
index 2e718b29fa..af5ca0e230 100644
--- a/activerecord/lib/active_record/connection_adapters/column.rb
+++ b/activerecord/lib/active_record/connection_adapters/column.rb
@@ -1,5 +1,3 @@
-require 'set'
-
module ActiveRecord
# :stopdoc:
module ConnectionAdapters