On 04/03/17 22:08, Bruce Momjian wrote:
> On Mon, Apr 3, 2017 at 09:53:34PM -0400, Chapman Flack wrote:
>> Hi,
>>
>> Is there any distinctive state that could be checked by extension code
>> to determine that it has been loaded incidentally during the operation
>> of pg_upgrade rather than under normal conditions?
>> ...
> You can check the backend global variable IsBinaryUpgrade to check if
> binary upgrade is being performed. Does that help you?
That sounds like exactly what I'd hoped for. Thanks!
-Chap