I´m not DBA. I´m a infrastruture professional, please someone help me

In my company we have a PGSQL Linux Red Hat 9 Database
The relevant portions of my DB Backup Script follows
I can send too, the whole script with other parts of the code

The backup is beeing made with the ´bva´ parameters
How can i restore?
I have to do a su - postgresql?
i have to drop and recrate something?







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#!/bin/sh
#
# +-- Restoration can be performed by using psql or pg_restore.
# | Here are two examples:
# |
# | a) If the backup is plain text:
# |
# | Firstly gunzip your backup file (if it was gzipped).
# |
# | gunzip backup_file.gz
# | psql -U postgres database < backup_file
# |
# | b) If the backup is not plain text:
# |
# | Firstly gunzip your backup file (if it was gzipped).
# |
# | gunzip backup_file
# | pg_restore -d database -F {c|t} backup_file
# |
# | Note: {c|t} is the format the database was backed up as.
# |
# | pg_restore -d database -F t backup_file_tar
# |
# +-- Refer to the following url for more pg_restore help:
#
# http://www.postgresql.org/idocs/inde...pgrestore.html
#


# Run backup, vacuum and analyze
run_bva() {
for i in $databases; do
start_time=`date '+%s'`
timeinfo=`date '+%T %x'`

"$location_binaries/vacuumdb" -z -h $postgresql_hostname -U $postgresql_username $i >/dev/null 2>&1
"$location_binaries/pg_dump" $backup_args -h $postgresql_hostname $i > "$location_backup_dir/`date +%B-%Y`/$date_info/$current_time-postgresql_database-$i-backup"
if [ "$backup_gzip" = "yes" ]; then
gzip "$location_backup_dir/`date +%B-%Y`/$date_info/$current_time-postgresql_database-$i-backup"
chmod $permissions_backup_file "$location_backup_dir/`date +%B-%Y`/$date_info/$current_time-postgresql_database-$i-backup.gz"
else
chmod $permissions_backup_file "$location_backup_dir/`date +%B-%Y`/$date_info/$current_time-postgresql_database-$i-backup"
fi
finish_time=`date '+%s'`
duration=`expr $finish_time - $start_time`
echo "Backup, Vacuum and Analyze complete (duration $duration seconds) at $timeinfo for schedule $current_time on database: $i, format: $backup_type" >> $location_logfile
done
exit 1
}

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Flavio Borup wrote:


# | a) If the backup is plain text:
# |
# | Firstly gunzip your backup file (if it was gzipped).
# |
# | gunzip backup_file.gz
# | psql -U postgres database < backup_file
# |
# | b) If the backup is not plain text:
# |
# | Firstly gunzip your backup file (if it was gzipped).
# |
# | gunzip backup_file
# | pg_restore -d database -F {c|t} backup_file
# |
# | Note: {c|t} is the format the database was backed up as.
# |
# | pg_restore -d database -F t backup_file_tar

bva options means - you have the plain text format.

(not drop tables) .
running the
psql -U postgres database < backup_file
will add the data to database.
if you still have data in tables i suggest running backup befor you try
this(if the data is meaningful).
However please note all this is not so simple: if you have
keys/triggers/sequences the data have to be loaded
in some order ,so this maybe tricky .if you don't know what you are
doing ,better don't do it.
And follow the link in the script!
http://www.postgresql.org/idocs/inde...pgrestore.html
Evgeny.


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