Raw Package Information
Package: postgresql-15-pg-checksums
Source: pg-checksums
Version: 1.3-2.pgdg22.04+1
Architecture: amd64
Maintainer: Debian PostgreSQL Maintainers <team+postgresql@tracker.debian.org>
Installed-Size: 87
Depends: postgresql-15, libc6 (>= 2.34)
Recommends: pg-checksums-doc
Homepage: https://github.com/credativ/pg_checksums
Priority: optional
Section: database
Filename: pool/main/p/pg-checksums/postgresql-15-pg-checksums_1.3-2.pgdg22.04+1_amd64.deb
Size: 36032
SHA256: 14c16578de4e6749a1c0a46801e1dedd0952a659820c3c6e612528d59f64482d
SHA1: b64fc50879e18339467e6e064b6c90df0eb5fa73
MD5sum: 321eef45e066a9dc5e9666249be74847
Description: Activate/deactivate/verify PostgreSQL data checksums
Data checksums allow the PostgreSQL database server to identify I/O failures
when reading data from storage. The checksums stored in the page header of
each data page are compared to the computed checksum of the read data.
.
Data checksums need to be activated at instance creation time, all current
versions of PostgreSQL including v11 do not allow activating (or deactivating)
checksums afterwards.
.
pg_checksums_ext can activate or deactivate data checksums as long at the
database cluster is shutdown cleanly. Activating checksums requires all
database blocks to be read and all page headers to be updated, so can take a
long time on a large database. Deactivating checksums only requires the
cluster control file to be updated so is quick.
.
In addition, pg_checksums_ext can verify the checksums in an online cluster.