| From: | Kevin Grittner <kgrittn(at)ymail(dot)com> |
|---|---|
| To: | Jim Nasby <Jim(dot)Nasby(at)BlueTreble(dot)com>, Álvaro Hernández Tortosa <aht(at)8Kdata(dot)com>, Craig Ringer <craig(at)2ndquadrant(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Repeatable read and serializable transactions see data committed after tx start |
| Date: | 2014-11-05 20:49:22 |
| Message-ID: | 1415220562.6573.YahooMailNeo@web122303.mail.ne1.yahoo.com |
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| Lists: | pgsql-hackers |
Jim Nasby <Jim(dot)Nasby(at)BlueTreble(dot)com> wrote:
> If we go that route we should also mention that now() will no
> longer be doing what you probably hope it would (AFAIK it's
> driven by BEGIN and not the first snapshot).
There is also the fact that pg_stat_activity shows a connection as
being "idle in transaction" as soon as BEGIN is executed; it does
not wait for the snapshot to be acquired.
--
Kevin Grittner
EDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company
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