Remco Gerlich wrote:
Hi!
> Compacting the game file frees up unused space, by removing deleted games.
>
> Very user-unfriendely, in my opinion...
Remco, no offense, but IMHO you miss some important points
if you call this "user-unfriendly" (not ot speak of the
"very" ;)
- if they get deleted right away there would be no way
to undelete. Absolutely no way. (I can actually hear the
screams right arround the globe for an undelete feature ;)
- sometimes you delete a bunch of games by criteria (header
search or whatever) to undelete another bunch of them
again. This can be a lot faster than deleting only those
you want to be deleted. This would not be possible with
autocompactation.
- Speed! Compacting the database needs quite some time.
Guess why. You actually have to rewrite the DB without the
games deleted. Surely you'll not want to wait all the time
till this is done. Yes, this is fast for a small bunch of
games, but consider some 10^6 games... (The size of DBs
Scid is actually meant to be used for.) Also for speeds
reason the games are not organised like files in the file
system where you can easily drop one of them inbetween.
- Indexing. For fast searches you need to index parts of the
games header. If you just drop all moves from a deleted
game without cleaning up the index you'll end up with an
inconsistent database.
- Dupe checking. Would you really want to automatically
remove all suspeced dupes Scid finds right away without
any way to check them? (If so, just use the cleaner from
maintanance.)
Notice the fundamental difference between <place your
favourite PGN viewer here> and Scid in this regard. Scid is
a database and for this reason behaves like a database. Now,
if you do a lot of cleaning in a database it is usually much
better to compcat the thing once you're done with your work
including reorganisation of the indicees and so on and not
right after any other delete option.
Note, that you can, however, skip deleted games easily in
the games list if you set "find games with flags" to "No"
for the "deleted" flag. (Header search.)
Tim, once you compaced the game file you'd most likely also
want to compact the name file to free up some bytes in the
indicees.
--
Kind regards, / War is Peace.
| Freedom is Slavery.
Alexander Wagner | Ignorance is Strength.
|
| Theory : G. Orwell, "1984"
/ In practice: USA, since 2001
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