Re: When does CLUSTER occur?

Igor Neyman wrote:

> As for MS SQL, here is how it implements clustering:
> The index on which the table is clustered actually becomes a
> "physical holder" (for the lack of better term) of the table,
> meaning the complete table tuples are stored in the leaf blocks
> of the index it is clustered on. There is no other place in the
> database where they are stored physically.

Right, in a SQL Server clustered table the data row is stored in
the leaf level of the clustered index, and in PostgreSQL we don't
store tuple visibility information within any index; so we would
have a fair amount of work to do before we could use a similar
approach.

-Kevin