**Use case**
For #15112

**Describe the solution you'd like**

SELECT ALL is identical to SELECT without DISTINCT.

If ALL is specified - ignore it.
If both ALL and DISTINCT are specified - syntax error or exception.

ALL can also be specified inside aggregate function:

SELECT sum(ALL x)

with the same effect (noop).
{
    Field res;
    if (!pos.isValid())
        return false;
    UInt64 x = 0;
    ReadBufferFromMemory in(pos->begin, pos->size());
    if (!tryReadIntText(x, in) || in.count() != pos->size())
    {
        expected.add(pos, "unsigned integer");
        return false;
    }
    res = x;
    auto literal = std::make_shared<ASTLiteral>(res);
    literal->begin = pos;
    literal->end = ++pos;
    node = literal;
    return true;
}
bool ParserStringLiteral::parseImpl(Pos & pos, ASTPtr & node, Expected & expected)