When starting either an old or new postmaster, force it to place its Unix
socket in the current directory. This makes it even harder for accidental
connections to occur during pg_upgrade, and also works around some
scenarios where the default socket location isn't usable. (For example,
if the default location is something other than "/tmp", it might not exist
during "make check".)
When checking an already-running old postmaster, find out its actual socket
directory location from postmaster.pid, if possible. This dodges problems
with an old postmaster having a configured location different from the
default built into pg_upgrade's libpq. We can't find that out if the old
postmaster is pre-9.1, so also document how to cope with such scenarios
manually.
In support of this, centralize handling of the connection-related command
line options passed to pg_upgrade's subsidiary programs, such as pg_dump.
This should make future changes easier.
Bruce Momjian and Tom Lane
The previous signature made it very easy to pass something other than
the printf-format specifier in the corresponding position, without any
warning from the compiler.
While at it, move some of the escaping, redirecting and quoting
responsibilities from the callers into exec_prog() itself. This makes
the callsites cleaner.
4741e9afb9. This was done by adding an
optional second log file parameter to exec_prog(), and closing and
reopening the log file between system() calls.
Backpatch to 9.2.
add ability to control permissions of created files
have psql echo its queries for easier debugging
output four separate log files, and delete them on success
add -r/--retain option to keep log files after success
make logs file append-only
remove -g/-G/-l logging options
sugggest tailing appropriate log file on failure
enhance -v/--verbose behavior
All supported platforms support the C89 standard function atexit()
(SunOS 4 probably being the last one not to), and supporting both
makes the code clumsy.
Add errno-based output to error messages where appropriate, reformat
blocks to about 72 characters per line, use spaces instead of tabs for
indentation, and other style adjustments.
the connection; also restructure the libpq connection code.
This patch also removes the unused variable postmasterPID and fixes a
libpq structure leak that was in the testing loop.
This option turns off autovacuum, prevents non-super-user connections,
and enables oid setting hooks in the backend. The code continues to use
the old autoavacuum disable settings for servers with earlier catalog
versions.
This includes a catalog version bump to identify servers that support
the -b option.
pointers, which simplifies the code. This was not possible in 9.0 because
everything was in a single nested struct, but is possible now.
Per suggestion from Tom.
