pg_attribute_encoding

The pg_attribute_encoding system catalog table contains column storage information.

Table 1. pg_catalog.pg_attribute_encoding

columntypemodifersstoragedescription
attrelidoidnot nullplainForeign key to pg_attribute.attrelid
attnumsmallintnot nullplainForeign key to pg_attribute.attnum
attoptionstext [ ] extendedThe options