On Fri, 2007-03-30 at 13:54 -0400, Tom Lane wrote:
> "Pavan Deolasee" <[EMAIL PROTECTED]> writes:
> > Actually, if we are using Serializable Snapshot then there is no chance
> > to replan the query before the transaction completes and the next
> > transaction to start in the session must see the index and hence
> > we must replan. So it would be enough just to associate a transaction
> > id with the cached plan. If this xid is set and our transaction id is
> > different than that, we replan.
> Hm.  So anytime we reject a potentially useful index as being not valid
> yet, we mark the plan as "only good for this top-level transaction"?
> That seems possibly workable --- in particular it doesn't get more
> complicated as soon as you consider multiple such indexes.

I like that because its specific in dealing with the exact issue we have
- it doesn't rely on many other things happening correctly.

...and it also seems to provide a new route to avoiding the CIC wait.

  Simon Riggs             
  EnterpriseDB   http://www.enterprisedb.com

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