https://dev.mysql.com/doc/refman/8.0/en/arithmetic-functions.html

**Use case**
`a DIV b` - the same as `intDiv(a, b)`
`a MOD b` - the same as `modulo(a, b)`
{
    
    const char ** it;
    for (it = operators; *it; it += 2)
    {
        if (parseOperator(pos, *it, expected))
            break;
    }
    
    /** This is done, because among the unary operators there is only a minus and NOT.
      * But for a minus the chain of unary operators does not need to be supported.
      */
    if (it[0] && 0 == strncmp(it[0], "NOT", 3))
    {
        
        bool even = false;
        const char ** jt;
        while (true)
        {