Greg Smith escribió:

> The messy part of extending relations in larger chunks
> is how to communicate that back into the buffer manager usefully.
> The extension path causing trouble is RelationGetBufferForTuple
> calling ReadBufferBI.  All of that is passing a single buffer
> around.  There's no simple way I can see to rewrite it to handle
> more than one at a time.

No, but we can have it create several pages and insert them into the
FSM.  So they aren't returned to the original caller but are available
to future users.

Álvaro Herrera      
PostgreSQL Development, 24x7 Support, Training & Services

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