[ZODB-Dev] BTrees questions

[Jim Fulton]

Martijn Faassen wrote:
> 
> Jim Fulton wrote:
> > > Sometimes I only care whether an item is there, and there's no associated
> > > value, and sets seem to fit,
> >
> > Yes. Note that TreeSets have the same semantics (minus the sequence behavior).
> 
> Are these better/more efficient in some ways?

They spread data over multiple objects, just like BTrees.
This allows data to be updated in the database more efficiently and
allows in-memory updates to go faster, because inserts are into individual
segments of the entire data structure.

Jim

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