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<chapter id="backup">

<title>Backup and Restore</title>

the backup history file will be named something like

<literal>0000000100001234000055CD.007C9330.backup</>. (The second part of

this file name stands for an exact position within the WAL file, and can

- ordinarily be ignored.) Once you have safely archived the backup dump

- file, you can delete all archived WAL segments with names numerically

+ ordinarily be ignored.) Once you have safely archived this WAL

+ segment file, you can delete all archived WAL segments with names numerically

preceding this one. The backup history file is just a small text file.

It contains the label string you gave to <function>pg_start_backup</>, as

well as the starting and ending times of the backup. If you used the