Alvaro Herrera <alvherre@2ndquadrant.com> writes:
> On 2019-Mar-29, PG Bug reporting form wrote:
>> SQL Error [42809]: ERROR: cannot create index on foreign table "msg_json"
> Ah, this is because we try to propagate the index to the partition,
> which appears to be less than desirable. Maybe this patch fixes it? I
> have not tested it, only verified that it compiles.
Really, what *ought* to happen in such a case is that the FDW gets
told about the command and has the opportunity to try to do something
corresponding to making an index. But that smells like a new feature
rather than a bug fix.
I'm not sure that just forcing the case to be a no-op is wise.
What if the index is supposed to be UNIQUE?
regards, tom lane