Thread: pgsql: Document the effect of max_standby_delay on increasing the delay

Log Message:
-----------
Document the effect of max_standby_delay on increasing the delay of data
from master to slave, and discourage its use during slave/master
keep-xid-alive connections.

Modified Files:
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    pgsql/doc/src/sgml:
        config.sgml (r1.256 -> r1.257)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/config.sgml?r1=1.256&r2=1.257)
        high-availability.sgml (r1.52 -> r1.53)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/high-availability.sgml?r1=1.52&r2=1.53)