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<Chapter Id="runtime">
module to the server log. This is a crude profiling
instrument. <varname>log_statement_stats</varname> reports total
statement statistics, while the others report per-state statistics.
- All of these options are disabled by default.
+ <varname>log_statement_stats</varname> can not be enabled with
+ the other options. All of these options are disabled by default.
Only superusers can turn off any of these options if they have
been enabled by the administrator.
</para>