```
/4/ :) SELECT arrayJoin([1, 2])  GROUP BY 1 WITH TOTALS FORMAT JSON

{
	"meta":
	[
		{
			"name": "arrayJoin([1, 2])",
			"type": "UInt8"
		}
	],

	"data":
	[
		{
			"arrayJoin([1, 2])": 1
		},
		{
			"arrayJoin([1, 2])": 2
		}← Progress: 0.00 rows, 0.00 B (0.00 rows/s., 0.00 B/s.) Logical error: 'Got 2 in totals chunk, expected 1'.
clickhouse-client: /home/akuzm/ch4/ch/src/Common/Exception.cpp:45: DB::Exception::Exception(const std::string &, int): Assertion `false' failed.
Aborted (core dumped)
```


#include <Processors/Formats/Impl/TemplateBlockOutputFormat.h>
#include <Formats/FormatFactory.h>
#include <IO/WriteHelpers.h>
#include <DataTypes/DataTypesNumber.h>
#include <Interpreters/Context.h>
namespace DB
{
namespace ErrorCodes
{
    extern const int SYNTAX_ERROR;
}
TemplateBlockOutputFormat::TemplateBlockOutputFormat(const Block & header_, WriteBuffer & out_, const FormatSettings & settings_,