aio: Change prefix of PgAioResultStatus values to PGAIO_RS_
The previous prefix wasn't consistent with the naming of other AIO related
enum values. It seems best to rename it before the users are introduced.
Reported-by: Melanie Plageman
Discussion:
https://postgr.es/m/caakru_yb+jzqpnsguxcb0gbi
plpgsql: make WHEN OTHERS distinct from WHEN SQLSTATE '0'.
The catchall exception condition OTHERS was represented as
sqlerrstate == 0, which was a poor choice because that comes
out the same as SQLSTATE '0'. While we don't issue that
as an error code ourselves, there isn't anything parti
Improve nbtree array primitive scan scheduling.
Add a new scheduling heuristic: don't end the ongoing primitive index
scan immediately (at the point where _bt_advance_array_keys notices that
the next set of matching tuples must be on a later page) if the primscan
already managed to step right/left
doc: Remove incorrect description about dropping replication slots.
pg_drop_replication_slot() can drop replication slots created on
a different database than the one where it is executed. This behavior
has been in place since PostgreSQL 9.4, when pg_drop_replication_slot()
was introduced.
Howeve
