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-rw-r--r--activerecord/lib/active_record/collection_cache_key.rb4
1 files changed, 2 insertions, 2 deletions
diff --git a/activerecord/lib/active_record/collection_cache_key.rb b/activerecord/lib/active_record/collection_cache_key.rb
index 61581b0451..4b6db8a96c 100644
--- a/activerecord/lib/active_record/collection_cache_key.rb
+++ b/activerecord/lib/active_record/collection_cache_key.rb
@@ -20,9 +20,9 @@ module ActiveRecord
select_values = "COUNT(*) AS #{connection.quote_column_name("size")}, MAX(%s) AS timestamp"
if collection.has_limit_or_offset?
- query = collection.select(column)
+ query = collection.select("#{column} AS collection_cache_key_timestamp")
subquery_alias = "subquery_for_cache_key"
- subquery_column = "#{subquery_alias}.#{timestamp_column}"
+ subquery_column = "#{subquery_alias}.collection_cache_key_timestamp"
subquery = query.arel.as(subquery_alias)
arel = Arel::SelectManager.new(subquery).project(select_values % subquery_column)
else