Package: postgresql-9.6-toastinfo Source: toastinfo Version: 1.2-2.pgdg20.04+1 Architecture: amd64 Maintainer: Debian PostgreSQL Maintainers Installed-Size: 36 Depends: postgresql-9.6 Homepage: Priority: optional Section: database Filename: pool/main/t/toastinfo/postgresql-9.6-toastinfo_1.2-2.pgdg20.04+1_amd64.deb Size: 6140 SHA256: d3b8eeb9fb0a72d61ad8b16af4fc682cc6ec20af738853e0cff6953540d11bce SHA1: 1837a8408f9eb0baf99bf079b76f5ce55e6b952c MD5sum: 635265a565436bdbbf3db561ebe06d82 Description: 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.