Обсуждение: Re: If an extension library is loaded during pg_upgrade,can it tell?
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. + + Ancient Roman grave inscription +
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