Few comments: 1) + Running read-only queries on a standby server.
Looks incomplete and disconnected from previous sentence. 2) + level used by the system. Namely, whether replica has been promoted to + logical (minimal never promotes). We shall replace replica, logical, minimal with below <literal>replica</literal> <literal>logical</literal> <literal>minimal</literal> Also shall we add 'wal_level'? Otherwise, 'replica' on its own could be understood as a replica server: Namely, whether wal_level replica has been promoted to .... 3) + The <xref linkend="guc-effective-wal-level"/> parameter reports the actual + level used by the system. Namely, whether replica has been promoted to + logical (minimal never promotes). + This parameter can only be set at server start. "This" here is misleading. Does this refer to wal_level or effective_wal_level? 4) Below that is <literal>minimal</literal>, Shall we change "that" to <literal>replica</literal> to avoid any confusion? thanks Shveta
