Package: postgresql-12-toastinfo Source: toastinfo Version: 1.5-2.pgdg20.04+1 Architecture: amd64 Maintainer: Debian PostgreSQL Maintainers Installed-Size: 45 Depends: postgresql-12, postgresql-12-jit-llvm (>= 10) Homepage: https://github.com/df7cb/toastinfo Priority: optional Section: database Filename: pool/main/t/toastinfo/postgresql-12-toastinfo_1.5-2.pgdg20.04+1_amd64.deb Size: 13072 SHA256: 507beeb50cd6ec0c8339f09ef644e92761f4a6ba6ffb2f1a0f3d12d1bceae67b SHA1: 2975e81ed0dffe5be11253b7ebace70cdf1bbe73 MD5sum: 73e35f06673e8523bc0e8d5978c9620c 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.