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[ Source: toastinfo  ]

Package: postgresql-13-toastinfo (1.2-2 and others)

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Show storage structure of varlena datatypes in PostgreSQL

This PostgreSQL extension exposes the internal storage structure of variable-length datatypes, called varlena.

The function pg_toastinfo describes the storage form of a datum:

 * null for NULLs
 * ordinary for non-varlena datatypes
 * short inline varlena for varlena values up to 126 bytes (1 byte header)
 * long inline varlena, (un)compressed for varlena values up to 1GiB
   (4 bytes header)
 * toasted varlena, (un)compressed for varlena values up to 1GiB stored in
   TOAST tables

The function pg_toastpointer returns a varlena's chunk_id oid in the corresponding TOAST table. It returns NULL on non-varlena input.

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Download for all available architectures
Architecture Version Package Size Installed Size Files
amd64 1.2-2+b1 12.1 kB48.0 kB [list of files]
arm64 1.2-2 11.7 kB43.0 kB [list of files]
armel 1.2-2 12.2 kB40.0 kB [list of files]
armhf 1.2-2 11.8 kB39.0 kB [list of files]
i386 1.2-2 11.9 kB47.0 kB [list of files]
mips64el 1.2-2 11.7 kB44.0 kB [list of files]
mipsel 1.2-2 11.4 kB39.0 kB [list of files]
ppc64el 1.2-2 12.4 kB99.0 kB [list of files]
s390x 1.2-2 11.6 kB39.0 kB [list of files]