Excerpts from Alvaro Herrera's message of jue nov 18 15:31:16 -0300 2010: > Excerpts from Robert Haas's message of jue nov 18 15:11:37 -0300 2010: > > > In the current master branch, it appears that "ALTER TABLE c INHERIT > > p" takes a ShareUpdateExclusiveLock on the child, which seems > > sufficient, and an AccessShareLock on the parent, which seems like it > > might not be; though I'm having a hard time figuring out exactly when > > it wouldn't be, especially since in 8.4 I'm fairly sure any ALTER > > TABLE command takes an AccessExclusiveLock. > > What if two of these run at the same time, and the parent doesn't > have children when they start? They would both try to set > relhassubclass, no?
Yep, duplicated the issue that way. -- Álvaro Herrera <alvhe...@commandprompt.com> The PostgreSQL Company - Command Prompt, Inc. PostgreSQL Replication, Consulting, Custom Development, 24x7 support -- Sent via pgsql-bugs mailing list (pgsql-bugs@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-bugs
