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-rw-r--r--activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb5
1 files changed, 3 insertions, 2 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb b/activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb
index 41d410e062..460745fba0 100644
--- a/activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb
+++ b/activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb
@@ -591,8 +591,9 @@ module ActiveRecord
'__active_record_temp'
)
- subselect = Arel::SelectManager.new(select.engine, subsubselect)
- subselect.project(Arel::Table.new('__active_record_temp')[update.ast.key.name])
+ subselect = Arel::Nodes::SelectCore.new
+ subselect.from = subsubselect
+ subselect.projections << Arel::Table.new('__active_record_temp')[update.ast.key.name]
update.where update.ast.key.in(subselect)
else