The record selection expression (RSE) used to identify records
    from the source database that Replication Option includes in
    a record stream and transfers to the target database. The RSE
    specifies conditions that individual records must satisfy in
    order to be included in the transfer to the target database.

    Replication Option supports COMPUTED_BY fields named in an RSE
    if the fields are defined using the value expressions shown in
    the value-expr syntax diagram in this section. If the fields are
    not defined by a supported value expression, you will receive a
    fatal error message.

    In extraction, extraction rollup, and replication transfers,
    you can use a relation-clause and with-clause. In extraction and
    extraction rollup transfers, you can also use a first-clause,
    reduce-clause, and sort-clause.