pg_attrdef #
The catalog pg_attrdef stores column default
expressions and generation expressions. The main information about columns
is stored in pg_attribute.
Only columns for which a default expression or generation expression has
been explicitly set will have an entry here.
Table 52.6. pg_attrdef Columns
Tipo y columna Descripción |
|---|
Identificador de fila |
La tabla a la que pertenece esta columna |
El número de la columna |
The column default or generation expression, in |