Re: Nested transactions and tuple header info - Mailing list pgsql-hackers

From Alvaro Herrera
Subject Re: Nested transactions and tuple header info
Date
Msg-id 20040602154733.GA9227@dcc.uchile.cl
Whole thread Raw
In response to Re: Nested transactions and tuple header info  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-hackers
On Wed, Jun 02, 2004 at 11:12:31AM -0400, Tom Lane wrote:

> A global CID counter would also simplify other visibility tests.  Alvaro
> hasn't said anything about how he's doing visibility checks across
> different subxacts of the same main xact, but without global CID there
> would need to be some pretty ugly checks to determine whether a subxact
> happened before or after the CID cutoff your outer xact is interested
> in.

Yes, I'm using a global CID counter.

-- 
Alvaro Herrera (<alvherre[a]dcc.uchile.cl>)
"La vida es para el que se aventura"



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