DROP STATISTICS — remove extended statistics
DROP STATISTICS [ IF EXISTS ] name [, ...] [ CASCADE | RESTRICT ]
DROP STATISTICS removes statistics object(s) from the database. Only the statistics object's owner, the schema owner, or a superuser can drop a statistics object.
IF EXISTSDo not throw an error if the statistics object does not exist. A notice is issued in this case.
nameThe name (optionally schema-qualified) of the statistics object to drop.
CASCADERESTRICTThese key words do not have any effect, since there are no dependencies on statistics.
To destroy two statistics objects in different schemas, without failing if they don't exist:
DROP STATISTICS IF EXISTS
accounting.users_uid_creation,
public.grants_user_role;
There is no DROP STATISTICS command in the SQL standard.