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-rw-r--r--activerecord/lib/active_record/connection_adapters/schema_cache.rb1
1 files changed, 1 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/schema_cache.rb b/activerecord/lib/active_record/connection_adapters/schema_cache.rb
index da507fd3ae..4e8932a695 100644
--- a/activerecord/lib/active_record/connection_adapters/schema_cache.rb
+++ b/activerecord/lib/active_record/connection_adapters/schema_cache.rb
@@ -34,6 +34,7 @@ module ActiveRecord
def clear!
@columns.clear
@columns_hash.clear
+ @primary_keys.clear
@tables.clear
end