On Tue, Jul 12, 2011 at 6:01 AM, hyelluas <helen_yell...@mcafee.com> wrote:
> Hello, > > I’m having a problem with concurrent processing. > 2 queries are accessing the same parent table that have 24 partitions. > I see “shared lock is not granted “ for one of them on one of the children > while the other query is running. > > Does the “ select from a parent table” make a lock on the children? > > In general if there are no predicates in query, then select would be fired across all children. > How I can change it? > The one of the queries runs hourly ( 8 min) on the server , the other one > can be run by a user , and a few users can run the same query. > > Thank you. > Helen > Could you post a self-contained test case? Regards, Chetan -- EnterpriseDB Corporation The Enterprise PostgreSQL Company Website: www.enterprisedb.com EnterpriseDB Blog : http://blogs.enterprisedb.com Follow us on Twitter : http://www.twitter.com/enterprisedb
