Thread: Serializable read and blocking
As per this blog post http://bonesmoses.org/2016/07/29/pg-phriday-constipated-connections/ I have a question which I asked there too, but unfortunately did not receive any answer. The question is re the following claim: - Readers do not block readers. - Readers do not block writers. - Writers do not block readers. - Writers may block writers. Are the above statements true even with SET TRANSACTION SERIALIZEABLE mode. I am specifically interested in the 3rd condition (- Writers do not block readers.) thanks
On Thu, Aug 11, 2016 at 7:11 AM, Rakesh Kumar <rakeshkumar464a3@gmail.com> wrote: > The question is re the following claim: > > - Readers do not block readers. > - Readers do not block writers. > - Writers do not block readers. > - Writers may block writers. > > > Are the above statements true even with SET TRANSACTION SERIALIZEABLE mode. > I am specifically interested in the 3rd condition (- Writers do not > block readers.) Yes. https://wiki.postgresql.org/wiki/SSI http://vldb.org/pvldb/vol5/p1850_danrkports_vldb2012.pdf -- Kevin Grittner EDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company