pgsql: Non text modes for pg_dumpall, correspondingly change pg_restore

Non text modes for pg_dumpall, correspondingly change pg_restore

pg_dumpall acquires a new -F/--format option, with the same meanings as
pg_dump. The default is p, meaning plain text. For any other value, a
directory is created containing two files, globals.data and map.dat. The
first contains SQL for restoring the global data, and the second
contains a map from oids to database names. It will also contain a
subdirectory called databases, inside which it will create archives in
the specified format, named using the database oids.

In these casess the -f argument is required.

If pg_restore encounters a directory containing globals.dat, and no
toc.dat, it restores the global settings and then restores each
database.

pg_restore acquires two new options: -g/--globals-only which suppresses
restoration of any databases, and --exclude-database which inhibits
restoration of particualr database(s) in the same way the same option
works in pg_dumpall.

Author: Mahendra Singh Thalor <mahi6run(at)gmail(dot)com>
Co-authored-by: Andrew Dunstan <andrew(at)dunslane(dot)net>
Reviewed-by: jian he <jian(dot)universality(at)gmail(dot)com>
Reviewed-by: Srinath Reddy <srinath2133(at)gmail(dot)com>
Reviewed-by: Álvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org>

Discussion: https://postgr.es/m/cb103623-8ee6-4ba5-a2c9-f32e3a4933fa@dunslane.net

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/1495eff7bdb0779cc54ca04f3bd768f647240df2

Modified Files
--------------
doc/src/sgml/ref/pg_dumpall.sgml | 86 +++-
doc/src/sgml/ref/pg_restore.sgml | 66 ++-
src/bin/pg_dump/parallel.c | 10 +
src/bin/pg_dump/pg_backup.h | 2 +-
src/bin/pg_dump/pg_backup_archiver.c | 20 +-
src/bin/pg_dump/pg_backup_archiver.h | 1 +
src/bin/pg_dump/pg_backup_tar.c | 2 +-
src/bin/pg_dump/pg_dump.c | 2 +-
src/bin/pg_dump/pg_dumpall.c | 294 +++++++++++--
src/bin/pg_dump/pg_restore.c | 794 ++++++++++++++++++++++++++++++++++-
src/bin/pg_dump/t/001_basic.pl | 9 +
11 files changed, 1201 insertions(+), 85 deletions(-)