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-rw-r--r--activerecord/lib/active_record/relation/calculations.rb11
1 files changed, 8 insertions, 3 deletions
diff --git a/activerecord/lib/active_record/relation/calculations.rb b/activerecord/lib/active_record/relation/calculations.rb
index bdd3c540bb..4f9ddf302e 100644
--- a/activerecord/lib/active_record/relation/calculations.rb
+++ b/activerecord/lib/active_record/relation/calculations.rb
@@ -221,7 +221,6 @@ module ActiveRecord
end
private
-
def has_include?(column_name)
eager_loading? || (includes_values.present? && column_name && column_name != :all)
end
@@ -236,10 +235,12 @@ module ActiveRecord
if operation == "count"
column_name ||= select_for_count
if column_name == :all
- if distinct && (group_values.any? || select_values.empty? && order_values.empty?)
+ if !distinct
+ distinct = distinct_select?(select_for_count) if group_values.empty?
+ elsif group_values.any? || select_values.empty? && order_values.empty?
column_name = primary_key
end
- elsif column_name.is_a?(::String) && /\bDISTINCT[\s(]/i.match?(column_name)
+ elsif distinct_select?(column_name)
distinct = nil
end
end
@@ -251,6 +252,10 @@ module ActiveRecord
end
end
+ def distinct_select?(column_name)
+ column_name.is_a?(::String) && /\bDISTINCT[\s(]/i.match?(column_name)
+ end
+
def aggregate_column(column_name)
return column_name if Arel::Expressions === column_name