Re: Review: Fix snapshot taking inconsistencies

Marko Tiikkaja <marko.tiikkaja@cs.helsinki.fi> writes:
> On 2011-02-28 9:03 PM, Tom Lane wrote:
>> OK, and which behavior is getting changed, to what?  I am not interested
>> in trying to reverse-engineer a specification from the patch.

> My recollection is (and the archives seem to agree) that normal 
> execution and SQL functions were changed to only advance the CID instead 
> of taking a new snapshot.  EXPLAIN ANALYZE and SPI (not exactly sure 
> about this one) did that already so they were just changed to use the 
> new API.

OK, so the intent is that in all cases, we just advance CID and don't
take a new snapshot between queries that were generated (by rule
expansion) from a single original parsetree?  But we still take a new
snap between original parsetrees?  Works for me.
        regards, tom lane