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-rw-r--r--lib/sql_algebra.rb1
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/sql_algebra.rb b/lib/sql_algebra.rb
index b3e3c8d176..61625ff270 100644
--- a/lib/sql_algebra.rb
+++ b/lib/sql_algebra.rb
@@ -17,6 +17,7 @@ require 'sql_algebra/relations/projection_relation'
require 'sql_algebra/relations/selection_relation'
require 'sql_algebra/relations/order_relation'
require 'sql_algebra/relations/range_relation'
+require 'sql_algebra/relations/rename_relation'
require 'sql_algebra/relations/join'
require 'sql_algebra/predicates/predicate'