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-rw-r--r--lib/arel/select_manager.rb8
1 files changed, 8 insertions, 0 deletions
diff --git a/lib/arel/select_manager.rb b/lib/arel/select_manager.rb
index 7a1fbbe438..ce8a9caf23 100644
--- a/lib/arel/select_manager.rb
+++ b/lib/arel/select_manager.rb
@@ -139,6 +139,14 @@ module Arel
@ctx.projections = projections
end
+ def distinct(value = true)
+ if value
+ @ctx.set_quantifier = Arel::Nodes::Distinct.new
+ else
+ @ctx.set_quantifier = nil
+ end
+ end
+
def order *expr
# FIXME: We SHOULD NOT be converting these to SqlLiteral automatically
@ast.orders.concat expr.map { |x|