Dear Peter,

Thank you for giving comments. PSA new version.

> src/bin/pg_dump/pg_backup.h
> 
> 1.
> + int logical_slot_only;
> 
> The field should be plural - "logical_slots_only"

Fixed.

> src/bin/pg_dump/pg_dump.c
> 
> 2.
> + appendPQExpBufferStr(query,
> + "SELECT r.slot_name, r.plugin, r.two_phase "
> + "FROM pg_replication_slots r "
> + "WHERE r.database = current_database() AND temporary = false "
> + "AND wal_status IN ('reserved', 'extended');");
> 
> The alias 'r' may not be needed at all here, but since you already
> have it IMO it looks a bit strange that you used it for only some of
> the columns but not others.

Right, I removed alias. Moreover, the namespace 'pg_catalog' is now specified.

> 3.
> +
> + /* FIXME: force dumping */
> + slotinfo[i].dobj.dump = DUMP_COMPONENT_ALL;
> 
> Why the "FIXME" here? Are you intending to replace this code with
> something else?

I was added FIXME because I was not sure whether we must add selectDumpable...()
function was needed or not. Now I have been thinking that such a functions are 
not
needed, so replaced comments. More detail, please see following:

Replication slots cannot be a member of extension because 
pg_create_logical_replication_slot()
cannot be called within the install script. This means that 
checkExtensionMembership()
is not needed. Moreover, we do not have have any options to include/exclude 
slots
in dumping, so checking their name like selectDumpableExtension() is not needed.
Based on them, I think the function is not needed.

Best Regards,
Hayato Kuroda
FUJITSU LIMITED

Attachment: v5-0001-pg_upgrade-Add-include-logical-replication-slots-.patch
Description: v5-0001-pg_upgrade-Add-include-logical-replication-slots-.patch

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