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| author | Robert Haas <rhaas@postgresql.org> | 2022-01-19 08:07:16 -0500 |
|---|---|---|
| committer | Robert Haas <rhaas@postgresql.org> | 2022-01-19 08:12:08 -0500 |
| commit | 0f47e833bf6d96c1a2c5173c8e0f6c6cc30f9592 (patch) | |
| tree | f2ba3b3e83d45d73d7bca47803c0fd36ab4216dd /contrib/postgres_fdw/deparse.c | |
| parent | 44129c04323e7252f9a4064278ab049966dc4499 (diff) | |
| download | postgresql-0f47e833bf6d96c1a2c5173c8e0f6c6cc30f9592.tar.gz postgresql-0f47e833bf6d96c1a2c5173c8e0f6c6cc30f9592.zip | |
Fix alignment problem with bbsink_copystream buffer.
bbsink_copystream wants to store a type byte just before the buffer,
but basebackup.c wants the buffer to be aligned so that it can call
PageIsNew() and PageGetLSN() on it. Therefore, instead of inserting
1 extra byte before the buffer, insert MAXIMUM_ALIGNOF extra bytes
and only use the last one.
On most machines this doesn't cause any problem (except perhaps for
performance) but some buildfarm machines with -fsanitize=alignment
dump core.
Discussion: http://postgr.es/m/CA+TgmoYx5=1A2K9JYV-9zdhyokU4KKTyNQ9q7CiXrX=YBBMWVw@mail.gmail.com
Diffstat (limited to 'contrib/postgres_fdw/deparse.c')
0 files changed, 0 insertions, 0 deletions