method

primary_keys

Importance_0
primary_keys(connection, table_name) public

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# File activerecord/lib/active_record/connection_adapters/schema_cache.rb, line 307
      def primary_keys(connection, table_name)
        @primary_keys.fetch(table_name) do
          if data_source_exists?(connection, table_name)
            @primary_keys[deep_deduplicate(table_name)] = deep_deduplicate(connection.primary_key(table_name))
          end
        end
      end
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