On 11/9/16 11:55 PM, Michael Paquier wrote:
> + <varlistentry id="guc-wal-consistency" xreflabel="wal_consistency">
> + <term><varname>wal_consistency</varname> (<type>string</type>)
> + <indexterm>
> + <primary><varname>wal_consistency</> configuration parameter</primary>
> + </indexterm>
> + </term>
> + <listitem>
> + <para>
> + This parameter is used to check the consistency of WAL records, i.e,
> + whether the WAL records are inserted and applied correctly. When
> + <varname>wal_consistency</varname> is enabled for a WAL record, it
> + stores a full-page image along with the record. When a full-page image
> + arrives during redo, it compares against the current page to check whether
> + both are consistent.
> + </para>
Could we name this something like wal_consistency_checking?
Otherwise it sounds like you use this to select the amount of
consistency in the WAL (similar to, say, wal_level).
--
Peter Eisentraut http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services