**Describe what's wrong**

We have a nested field in a table.
The table is created using SET flatten_nested = 0.
When the server is restarted the field is no longer nested (only flattened arrays appear).

**Does it reproduce on recent release?**

version 22.2.3.1

**How to reproduce**

Create a table using:

` 
SET flatten_nested = 0            
` 
` 
CREATE TABLE test.test    
    (     
        id String,  
       nested_field Nested (nf1 String, nf2 String)  
    ) ENGINE = MergeTree ORDER BY id  
`

Recover the table structure using describe:
`
describe test.test
`
`
name           type
id             String
nested_field   Nested(nf1 String, nf2 String) 
`

Restart click-house server.

Recover the table structure using describe:
`
 name               type            
 id                 String                                                                                          
 nested_field.nf1   Array(String)                                                                                   
 nested_field.nf2   Array(String)                                                                                   
`

*Expected behavior**

Recover the initial structure of the table not he flatenned one.


column_declaration->default_expression = column.default_desc.expression->clone();
            column_declaration->children.push_back(column_declaration->default_expression);
        }
        if (!column.comment.empty())
        {
            column_declaration->comment = std::make_shared<ASTLiteral>(Field(column.comment));
            column_declaration->children.push_back(column_declaration->comment);
        }
        if (column.codec)
        {
            column_declaration->codec = column.codec;
            column_declaration->children.push_back(column_declaration->codec);
        }
        if (column.ttl)
        {
            column_declaration->ttl = column.ttl;
            column_declaration->children.push_back(column_declaration->ttl);
        }
        columns_list->children.push_back(column_declaration_ptr);
    }
    return columns_list;
}
ASTPtr InterpreterCreateQuery::formatIndices(const IndicesDescription & indices)
{
    auto res = std::make_shared<ASTExpressionList>();
    for (const auto & index : indices)
        res->children.push_back(index.definition_ast->clone());
    return res;
}
ASTPtr InterpreterCreateQuery::formatConstraints(const ConstraintsDescription & constraints)