Re: More time spending with "delete pending"

As I've found out, readdir() replacement for Windows in fact gets all
the needed information (correct file size, attributes...) in
WIN32_FIND_DATA, but it just leaves it inside and returns only fields of
the dirent structure. So pg_ls_dir_files() (that calls
ReadDir()/readdir()) needs to get this information again, that leads to
opening a file on Windows.
I think it can be done more effectively by adding a new function
ReadDirExtendedInfo(), that will additionally accept a pointer to
"struct dirent_extra" with fields {valid (indicating that the structure
is filled), attributes, file size, mtime}. Maybe the advanced function
could also invoke stat() inside (not on Windows).

As to patch I proposed before, I think it's still needed to fully
support the following usage pattern:
stat();
if (no_error) {
    do_something();
} else if (file_not_found) {
    do_something_else();
} else {
    error();
}