**Describe the bug**
If you make a query to MySQL Engine Table with joined MergeTree Engine Table, you use any columns of the latter.


**How to reproduce**
* ClickHouse server 20.8.2
* ClickHouse client version 20.8.2.3 (official build).

```sql
CREATE TABLE mysql_table
(
    `id` UInt64,
    `name` Nullable(String),
)
ENGINE = MySQL('test:3306', 'test', 'test', 'test', 'test');
```

```sql
CREATE TABLE ch_table
(
    `id` UInt64,
    `mysql_item_id` UInt64,
    `d` DateTime
)
ENGINE = MergeTree()
PARTITION BY toYYYYMM(d)
ORDER BY d;
```

Query 
```sql
    SELECT *
    FROM mysql_table AS t_mysql_table
    LEFT JOIN ch_table AS t_ch_table 
         ON t_ch_table.mysql_item_id = t_mysql_table.id
    WHERE t_ch_table.id > 100
```

**Expected behavior**
Returns empty result without errors.

**Error message and/or stacktrace**
```
Code: 47. DB::Exception: Received from test:9000. DB::Exception: Missing columns: 't_ch_table.id' while processing query: 't_ch_table.id > 100', required columns: 't_ch_table.id', source columns: 'id', 'name'. 
```

if (function->name == "and")
            {
                bool compatible_found = false;
                auto new_function_and = makeASTFunction("and");
                for (const auto & elem : function->arguments->children)
                {
                    if (isCompatible(*elem))
                    {
                        new_function_and->arguments->children.push_back(elem);
                        compatible_found = true;
                    }
                }
                if (new_function_and->arguments->children.size() == 1)
                    new_function_and->name = "";
                if (compatible_found)
                    select->setExpression(ASTSelectQuery::Expression::WHERE, std::move(new_function_and));
            }
        }
    }
    ASTPtr select_ptr = select;
    dropAliases(select_ptr);
    WriteBufferFromOwnString out;
    IAST::FormatSettings settings(out, true);
    settings.identifier_quoting_style = identifier_quoting_style;
    settings.always_quote_identifiers = identifier_quoting_style != IdentifierQuotingStyle::None;
    select->format(settings);
    return out.str();
}
}