reorderbuffer: preserve errno while reporting error
Clobbering errno during cleanup after an error is an oft-repeated, easy
to make mistake. Deal with it here as everywhere else, by saving it
aside and restoring after cleanup, before ereport'ing.
In passing, add a missing errcode declaration in another ereport() call
in the same file, which I noticed while skimming the file looking for
similar problems.
Backpatch to 9.4, where this code was introduced.
Branch
------
REL9_5_STABLE
Details
-------
http://git.postgresql.org/pg/commitdiff/ac3aac3292d6e958bb8235120ba6a12159a29afe
Modified Files
--------------
src/backend/replication/logical/reorderbuffer.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
