On Fri, Nov 6, 2015 at 2:03 PM, Kevin Grittner <kgrittn@ymail.com> wrote:
> Has anyone taken a close look at what happens if the two sides of
> the merge join have different implementations of the same collation
> name? Is there anything we should do to defend against the
> problem?
The issue of FDWs vs. collations has been thought about to some degree
(see FDW_COLLATE_NONE/SAFE/UNSAFE), but I don't quite understand that
stuff in detail.
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company