GS_VIEW_INVALID

GS_VIEW_INVALID queries all unavailable views visible to the current user.

If the basic table, function, or synonym on which the view depends is abnormal, the validtype column of the view is displayed as invalid. If the system object on which the view depends changes during an upgrade, the validtype column of the view is displayed as invalidInUpgrade.

**Table 1** GS_VIEW_INVALID columns
Column	Type	Description
oid	oid	OID of the view
schemaname	name	View space name
viewname	name	Name of the view
viewowner	name	Owner of the view
definition	text	Definition of the view
validtype	text	View validity flag
last_invalid_time	timestamp with time zone	Time when a view is invalid. This column is available only in clusters of version 9.1.0.200 or later.