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?
>
> PL/Java ordinarily checks what version of its schema is around, but
> that may be premature while pg_upgrade is doing its thing and the schema
> might not be all there yet.
You can check the backend global variable IsBinaryUpgrade to check if
binary upgrade is being performed. Does that help you?
-- Bruce Momjian <bruce@momjian.us> http://momjian.us EnterpriseDB
http://enterprisedb.com
+ As you are, so once was I. As I am, so you will be. +
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