```
milovidov-desktop :) SELECT -1::INT

Syntax error: failed at position 10 ('::')
```
++pos;
    if (pos->type != TokenType::Colon)
    {
        expected.add(pos, "colon between name and type");
        return false;
    }
    ++pos;
    auto old_pos = pos;
    ParserDataType type_parser;
    if (!type_parser.ignore(pos, expected))
    {
        expected.add(pos, "substitution type");
        return false;
    }
    String type(old_pos->begin, pos->begin);
    if (pos->type != TokenType::ClosingCurlyBrace)
    {
        expected.add(pos, "closing curly brace");
        return false;
    }
    ++pos;
    node = std::make_shared<ASTQueryParameter>(name, type);
    return true;
}
bool ParserMySQLGlobalVariable::parseImpl(Pos & pos, ASTPtr & node, Expected & expected)
{
    if (pos->type != TokenType::DoubleAt)
        return false;
    ++pos;
    if (pos->type != TokenType::BareWord)