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doc-exports/docs/dws/dev/dws_04_0572.html
luhuayi 177cd61a57 DWS DEVG 910.211 version 
Reviewed-by: Pruthi, Vineet <vineet.pruthi@t-systems.com>
Co-authored-by: luhuayi <luhuayi@huawei.com>
Co-committed-by: luhuayi <luhuayi@huawei.com>
2025-05-05 07:44:03 +00:00

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PG_ATTRDEF

PG_ATTRDEF stores default values of columns.

Table 1 PG_ATTRDEF columns

Column

Type

Description

adrelid

OID

Table to which the column belongs

adnum

Smallint

Column No.

adbin

pg_node_tree

Internal representation of the column's default value

adsrc

Text

Internal representation of the human-readable default value

adbin_on_update

pg_node_tree

Internal representation of the value of on_update_expr

adsrc_on_update

Text

Internal representation of the human-readable value of on_update_expr
Parent topic: System Catalogs