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postgresql-17-pg-checksums

Activate/deactivate/verify PostgreSQL data checksums

UnsupportedCommand lineDevelopment

Unsupported

The PostgreSQL server, and the extensions that run inside it, needs a System V shared memory segment even when set to use mmap, and Android refuses it (initdb fails on a device, with and without Breadstick's shared-memory library).

Programs that need System V shared memory

PlatformStandardVM
Android, ARM64UnsupportedUntested
GooglebookOS, ARM64UnsupportedUntested
GooglebookOS, x86-64UnsupportedUntested
ChromeOS, ARM64UnsupportedUntested
ChromeOS, x86-64UnsupportedUntested

About postgresql-17-pg-checksums

From Debian's package description

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.

From Debian's description of the postgresql-17-pg-checksums package, under that package's license.

Dependencies

Depends on

Recommends

  • pg-checksums-doc

Sources and licenses

  • Name: the Debian package name.
  • Summary: Debian's short description of the postgresql-17-pg-checksums package, under that package's license.
  • Description: Debian's description of the postgresql-17-pg-checksums package, under that package's license.
  • Versions and sizes: Debian's archive for ARM64, as on packages.debian.org.
  • Popularity: Debian Popularity Contest counts.

More in About the catalog.