How to set current sequence while converting primary key serial(integer) to bigserial(bigint)
PgAdmin4 has no option to modify graphically but as per PostgreSQL Document, we can alter the sequence data type to smallint, integer, and bigint

Alter table column &amp; sequence data type and set max value for the sequence

ALTER SEQUENCE public.case_audit_case_audit_uid_seq AS bigint;
ALTER SEQUENCE public.case_audit_case_audit_uid_seq MAXVALUE 9223372036854775807;
ALTER TABLE public.case_audit ALTER COLUMN case_audit_uid TYPE bigint;