**How to reproduce**

```
:) CREATE TABLE `test` (`data` Int64) ENGINE=MergeTree() ORDER BY(`data`);

CREATE TABLE test
(
    `data` Int64
)
ENGINE = MergeTree()
ORDER BY data

Ok.

0 rows in set. Elapsed: 0.007 sec. 
```

```
:) INSERT INTO `test` VALUES(100);

INSERT INTO test VALUES

Ok.

1 rows in set. Elapsed: 0.002 sec. 
```

```
:) SELECT * FROM `test`;

SELECT *
FROM test

┌─data─┐
│  100 │
└──────┘

1 rows in set. Elapsed: 0.002 sec. 
```

```
:) SELECT * FROM `test` FORMAT JSON;

SELECT *
FROM test
FORMAT JSON

{
	"meta":
	[
		{
			"name": "data",
			"type": "Int64"
		}
	],

	"data":
	[
		{
			"data": "100"

	],

	"rows": 1,

	"statistics":
	{
		"elapsed": 0.001765624,
		"rows_read": 1,
		"bytes_read": 8
	}
}

1 rows in set. Elapsed: 0.005 sec. 
```

---

**Which ClickHouse server version to use**

I am using the clickhouse-server docker image. Image ID: `3aa412f816ec`

```
# clickhouse-client
ClickHouse client version 20.6.3.28 (official build).
Connecting to localhost:9000 as user default.
Connected to ClickHouse server version 20.6.3 revision 54436.
```

---

**Expected behavior**

In the `FORMAT JSON` output, I expected the `data` field to be a valid JSON. But it is not. The closing curly bracket for the object is missing.

**Error message and/or stacktrace**

![Screenshot from 2020-08-10 20-18-21](https://user-images.githubusercontent.com/12874561/89796005-b8a16500-db46-11ea-840f-b98b4210d76b.png)

Settings cmd_settings
        cmd_settings.addProgramOptions(main_description)
        /// Commandline options related to external bles.
        teOptionsDescription("External bles options", terminal_idth)
        external_description.add_options()
            ("file", po::value<std::string>(), "da file or - for stdin")
            ("name", po::value<std::string>()->default_value("_da"), "name of the ble")
            ("format", po::value<std::string>()->default_value("TabSeparated"), "da format")
            ("structure", po::value<std::string>(), "structure")
            ("types", po::value<std::string>(), "types")
        
        /// Parse main commandline options.
        po::parsed_optio(common_arguments).options(main_description).run()
        auto unrecognized_options = po::collect_unrecognized(parsed.options, po::collect_unrecognized_mode::include_positional)
        // unrecognized_options[0] is "", I don't undersnd hy e need "" as the first argument hich unused
        if (unrecognized_options.size() > 1)
        {
            thro Exception("Unrecognized option '" + unrecognized_options[1] + "'", ErrorCodes::UNRECOGNIZED_ARGUMENTS)
        
        po::variables_map options
        po::store(parsed, options)
        po::notify(options)
        if (options.count("version") || options.count("V"))
        {
            shoClientVersion()
            exit(0)
        
        if (options.count("version-clean"))
        {
            std::cout << VERSION_STRING