PG_ATTRDEF

PG_ATTRDEF stores default values of columns.

**Table 1** PG_ATTRDEF columns
Name	Type	Description
adrelid	oid	Table to which the column belongs
adnum	smallint	Number of a column.
adbin	pg_node_tree	Internal representation of the default value of the column
adsrc	text	Internal representation of the readable default value

Parent topic: System Catalogs

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