Figure out meaning of SQL_ATTR_MAX_ROWS code

[hostilefork]

There was code in Christian Ensel's original ODBC extension which would set the number of rows, but was commented out saying it was "in the wrong place" (?).

It was preserved as:

// SQLULEN max_rows = 0;
// rc = SQLSetStmtAttr(hstmt, SQL_ATTR_MAX_ROWS, &max_rows, SQL_IS_POINTER);
// if (not SQL_SUCCEEDED(rc))
//     rebJumps ("fail", Error_ODBC_Stmt(hstmt));

But turned into an issue here, as being preferable to keeping commented out code in the file. So someone can take interest in what this is for and how it might be used correctly.