os:centos 6.8
postgresql:10.3
查看initdb的参数
$ /usr/pgsql-10/bin/initdb --help
initdb initializes a PostgreSQL database cluster.
Usage:
initdb [OPTION]... [DATADIR]
Options:
-A, --auth=METHOD default authentication method for local connections
--auth-host=METHOD default authentication method for local TCP/IP connections
--auth-local=METHOD default authentication method for local-socket connections
[-D, --pgdata=]DATADIR location for this database cluster
-E, --encoding=ENCODING set default encoding for new databases
--locale=LOCALE set default locale for new databases
--lc-collate=, --lc-ctype=, --lc-messages=LOCALE
--lc-monetary=, --lc-numeric=, --lc-time=LOCALE
set default locale in the respective category for
new databases (default taken from environment)
--no-locale equivalent to --locale=C
--pwfile=FILE read password for the new superuser from file
-T, --text-search-config=CFG
default text search configuration
-U, --username=NAME database superuser name
-W, --pwprompt prompt for a password for the new superuser
-X, --waldir=WALDIR location for the write-ahead log directory
Less commonly used options:
-d, --debug generate lots of debugging output
-k, --data-checksums use data page checksums
-L DIRECTORY where to find the input files
-n, --no-clean do not clean up after errors
-N, --no-sync do not wait for changes to be written safely to disk
-s, --show show internal settings
-S, --sync-only only sync data directory
Other options:
-V, --version output version information, then exit
-?, --help show this help, then exit
If the data directory is not specified, the environment variable PGDATA
is used.
Report bugs to <pgsql-bugs@postgresql.org>.
初始化
添加了 –debug –data-checksums
$ /usr/pgsql-10/bin/initdb -D /var/lib/pgsql/10/data -U postgres -W -E UTF8 --locale=zh_CN.UTF-8 --debug --data-checksums
未添加 –debug –data-checksums
$ /usr/pgsql-10/bin/initdb -D /var/lib/pgsql/10/data -U postgres -W -E UTF8 --locale=zh_CN.UTF-8
The files belonging to this database system will be owned by user "postgres".
This user must also own the server process.
The database cluster will be initialized with locale "zh_CN.UTF-8".
initdb: could not find suitable text search configuration for locale "zh_CN.UTF-8"
The default text search configuration will be set to "simple".
Data page checksums are disabled.
Enter new superuser password:
Enter it again:
fixing permissions on existing directory /var/lib/pgsql/10/data ... ok
creating subdirectories ... ok
selecting default max_connections ... 100
selecting default shared_buffers ... 128MB
selecting dynamic shared memory implementation ... posix
creating configuration files ... ok
running bootstrap script ... ok
performing post-bootstrap initialization ... ok
syncing data to disk ... ok
WARNING: enabling "trust" authentication for local connections
You can change this by editing pg_hba.conf or using the option -A, or
--auth-local and --auth-host, the next time you run initdb.
Success. You can now start the database server using:
/usr/pgsql-10/bin/pg_ctl -D /var/lib/pgsql/10/data -l logfile start默认的一些参数
$ egrep ^[a-z] ./postgresql.conf
max_connections = 100 # (change requires restart)
shared_buffers = 128MB # min 128kB
dynamic_shared_memory_type = posix # the default is the first option
log_destination = 'stderr' # Valid values are combinations of
logging_collector = on # Enable capturing of stderr and csvlog
log_directory = 'log' # directory where log files are written,
log_filename = 'postgresql-%a.log' # log file name pattern,
log_truncate_on_rotation = on # If on, an existing log file with the
log_rotation_age = 1d # Automatic rotation of logfiles will
log_rotation_size = 0 # Automatic rotation of logfiles will
log_line_prefix = '%m [%p] ' # special values:
log_timezone = 'PRC'
datestyle = 'iso, ymd'
timezone = 'PRC'
lc_messages = 'zh_CN.UTF-8' # locale for system error message
lc_monetary = 'zh_CN.UTF-8' # locale for monetary formatting
lc_numeric = 'zh_CN.UTF-8' # locale for number formatting
lc_time = 'zh_CN.UTF-8' # locale for time formatting
default_text_search_config = 'pg_catalog.simple'登录postgresql，查看信息
$ psql
psql (10.3)
Type "help" for help.
postgres=# select version();
version
---------------------------------------------------------------------------------------------------------
PostgreSQL 10.3 on x86_64-pc-linux-gnu, compiled by gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-18), 64-bit
(1 row)
postgres=# \l
List of databases
Name | Owner | Encoding | Collate | Ctype | Access privileges
-----------+----------+----------+-------------+-------------+-----------------------
postgres | postgres | UTF8 | zh_CN.UTF-8 | zh_CN.UTF-8 |
template0 | postgres | UTF8 | zh_CN.UTF-8 | zh_CN.UTF-8 | =c/postgres +
| | | | | postgres=CTc/postgres
template1 | postgres | UTF8 | zh_CN.UTF-8 | zh_CN.UTF-8 | =c/postgres +
| | | | | postgres=CTc/postgres
(3 rows)
postgres=# select * from pg_collation ;
collname | collnamespace | collowner | collprovider | collencoding | collcollate | collctype | collversion
-----------------------+---------------+-----------+--------------+--------------+-----------------------+-----------------------+-------------
default | 11 | 10 | d | -1 | | |
C | 11 | 10 | c | -1 | C | C |
POSIX | 11 | 10 | c | -1 | POSIX | POSIX |
ucs_basic | 11 | 10 | c | 6 | C | C |
aa_DJ | 11 | 10 | c | 8 | aa_DJ | aa_DJ |
aa_DJ.iso88591 | 11 | 10 | c | 8 | aa_DJ.iso88591 | aa_DJ.iso88591 |
aa_DJ.utf8 | 11 | 10 | c | 6 | aa_DJ.utf8 | aa_DJ.utf8 |
aa_ER | 11 | 10 | c | 6 | aa_ER | aa_ER |
aa_ER@saaho | 11 | 10 | c | 6 | aa_ER@saaho | aa_ER@saaho |
aa_ER.utf8 | 11 | 10 | c | 6 | aa_ER.utf8 | aa_ER.utf8 |
aa_ER.utf8@saaho | 11 | 10 | c | 6 | aa_ER.utf8@saaho | aa_ER.utf8@saaho |
aa_ET | 11 | 10 | c | 6 | aa_ET | aa_ET |
中间省略若干行
zh-x-icu | 11 | 10 | i | -1 | zh | zh | 49.192.0.41
zh-hans-x-icu | 11 | 10 | i | -1 | zh_Hans | zh_Hans | 49.192.0.41
zh-hans-cn