1 -F format
 2 --format=format
 3 Selects the format of the output. format can be one of the following:
 4 p
 5 plain
 6 Output a plain-text sql script file (the default).
 7 c
 8 custom
 9 Output a custom-format archive suitable for input into pg_restore. Together with the directory output format,this is the most flexible output format in that it allows manual selection and reordering of archived items during restore. This format is also compressed by default.
10 d
11 directory
12 Output a directory-format archive suitable for input into pg_restore. This will create a directory with one file for each table and blob being dumped,plus a so-called Table of Contents file describing the dumped objects in a machine-readable format that pg_restore can read. A directory format archive can be manipulated with standard Unix tools; for example,files in an uncompressed archive can be compressed with the gzip tool. This format is compressed by default.
13 t
14 tar
15 Output a tar-format archive suitable for input into pg_restore. The tar format is compatible with the directory format: extracting a tar-format archive produces a valid directory-format archive. However,the tar format does not support compression. Also,when using tar format the relative order of table data items cannot be changed during restore.
16  
17 -C
18 --create
19 Begin the output with a command to create the database itself and reconnect to the created database. (With a script of this form,it doesn‘t matter which database in the destination installation you connect to before running the script.) If --clean is also specified,the script drops and recreates the target database before reconnecting to it.
20 This option is only meaningful for the plain-text format. For the archive formats,you can specify the option when you call pg_restore.
21 -E encoding
22 --encoding=encoding
23 Create the dump in the specified character set encoding. By default,the dump is created in the database encoding. (Another way to get the same result is to set the PGCLIENTENCODING environment variable to the desired dump encoding.)
24  
25 -O
26 --no-owner
27 Do not output commands to set ownership of objects to match the original database. By default,pg_dump issues ALTER OWNER or SET SESSION AUTHORIZATION statements to set ownership of created database objects. These statements will fail when the script is run unless it is started by a superuser (or the same user that owns all of the objects in the script). To make a script that can be restored by any user,but will give that user ownership of all the objects,specify -O.
28 This option is only meaningful for the plain-text format. For the archive formats,you can specify the option when you call pg_restore.
29