On Tue, Aug 30, 2016 at 8:17 PM, Kenneth Marshall <k...@rice.edu> wrote:

> We have been using the extension pg_repack to keep a table groomed into
> cluster order. With an appropriate FILLFACTOR to keep updates on the same
> page, it works well. The issue is that it needs space to rebuild the new
> index/table. If you have that, it works well.
>

In DB2, it seems possible to define a "clustering index" that determines
how rows are physically ordered in the "table space" (the heap).

The documentation says: "When a table has a clustering index, an INSERT
statement causes DB2 to insert the records as nearly as possible in the
order of their index values."

It looks like a kind of "continuous CLUSTER/pg_repack". Is there something
similar available or planned for PostgreSQL?

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