Alvaro Herrera wrote: > To implement this I propose keeping track of four additional pointers in > SnapshotData: "next" and "prev" in the registered list, and "next" and > "prev" in the active stack.
FWIW this does not work as proposed because one snapshot can be stored as active more than once simultaneously. Back to the drawing board on memory management -- so far I have merged the two snapshot patches I had (RegisterSnapshot and ActiveSnapshot), and the result looks reasonably good. -- Alvaro Herrera http://www.CommandPrompt.com/ PostgreSQL Replication, Consulting, Custom Development, 24x7 support -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
