Peter Geoghegan <pg@bowt.ie> writes:
>>> TRAP: FailedAssertion("!(metad->btm_version == 3)", File:
>>> "/home/pg/postgresql/root/build/../source/src/backend/access/nbtree/nbtpage.c",
>>> Line: 619)
>> Hm, buildfarm's not complaining --- what's the test case?
> This was discovered while testing/reviewing the latest version of the
> INCLUDE covering indexes patch. It now seems to be unrelated.
Oh, wait ... I wonder if you saw that because you were running a new
backend without having re-initdb'd? Once you had re-initdb'd, then
of course there would be no old-format btree indexes anywhere. But
if you hadn't, then anyplace that was not prepared to cope with the
old header format would complain about pre-existing indexes.
In short, this sounds like a place that did not get the memo about
how to cope with un-upgraded indexes.
regards, tom lane