gistPageAddItem doesn't used. Look at mail archive, it was a discussion about
keep thes or not. Shortly: gistPageAddItem suppose to recompress entry, but we
can't
find any reason to do it. One more - gistPageAddItem works only with
single-key indexes.
Itai Zukerman wrote:
> In the examples I've seen, in the consistent method we have:
>
> if (GIST_LEAF(entry)) [...]
>
> but in compress we have:
>
> if (entry->leafkey) [...]
>
> I can see what the latter's doing, but I'm not sure what GIST_LEAF
> does, or why you'd want to use it.
>
> Also, I noticed this in src/backend/access/gist:
>
> static void gistcentryinit(GISTSTATE *giststate, int nkey,
> GISTENTRY *e, Datum k,
> Relation r, Page pg,
> OffsetNumber o, int b, bool l, bool isNull);
>
> and later (in gistPageAddItem):
>
> gistcentryinit(giststate, 0, &tmpcentry, dentry->key, r, page,
> offsetNumber, dentry->bytes, FALSE);
>
> Isn't the call missing the "isNull" parameter?
>
--
Teodor Sigaev
teodor@stack.net
