Hi Jens

I'm not planning on modifying the SG code, i'm modifying the docs directly
with a tiny script made in PHP.

I took measures in case of errors, and made backups of every document
before modifiying them.

I'm studying the specs you told me about revsTree and MarshalJSON.

I'm not ever "knowful" of go, so i prefer to use php api.

I'll tell you how i'm doing, without asking you about errors. ;)

2015-04-20 18:55 GMT-05:00 Jens Alfke <[email protected]>:

>
> On Apr 20, 2015, at 12:28 PM, Frederic Yesid Peña Sánchez <
> [email protected]> wrote:
>
> So the issue here is that the "revision" info, that "list" of revisions is
> getting too long (and not that the document itself is holding a lot of
> revisions), and that may be collapsing my DB, so i'ts safe to trim that
> revision tree?? cut from 1000 lines to 20 for example??
>
>
> Unless there are conflicts, it shouldn’t be getting longer than
> the RevsLimit configured for the database. Did you edit your configuration
> to set a lower RevsLimit? (And note that the change doesn’t apply to a
> document until the next time it’s saved.)
>
> If i trim the revs, parents and deleted arrays at the same time, leaving
> the last 20 items, do this will trim my history tree?.
>
>
> No! This will just break the revision tree and cause Go panics when
> accessing the document. Please read the comments on the revTreeList struct
> in revtree.go. "Ordering in the arrays doesn't matter.” (It’s random,
> determined only by the order in which the hash table is enumerated.)
>
> It is possible to edit the JSON to trim old revisions, but it will take a
> good knowledge of the schema it’s written in. Hopefully the revTreeList
> struct and the MarshalJSON method have enough info to figure out the
> details.
>
> I don’t want to tell you not to hack on this :) but if you do so, you’re
> entering the territory of a SG developer. It would be great if you found
> bugs or inefficiencies in managing the rev tree, and even better if you
> sent us fixes, but *please* don’t do this to any database you plan to use
> in production. (Or if you do, don’t ask us for help with resulting problems
> because they’re going to be impossible for us to troubleshoot without
> understanding the changes you’ve made to the code…)
>
> —Jens
>
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