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Tweak wording of documentation for pg_checksums

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Author: Justin Pryzby
Discussion: https://postgr.es/m/20190329143210.GI5815@telsasoft.com
This commit is contained in:
Michael Paquier 2019-04-08 15:30:45 +09:00
parent 4c9e1bd0a3
commit e3865c3754
1 changed files with 9 additions and 10 deletions
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19
doc/src/sgml/ref/pg_checksums.sgml
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@ -39,16 +39,16 @@ PostgreSQL documentation
<application>pg_checksums</application> checks, enables or disables data
checksums in a <productname>PostgreSQL</productname> cluster. The server
must be shut down cleanly before running
<application>pg_checksums</application>. The exit status is zero if there
are no checksum errors when checking them, and nonzero if at least one
checksum failure is detected. If enabling or disabling checksums, the
<application>pg_checksums</application>. When verifying checksums, the exit
status is zero if there are no checksum errors, and nonzero if at least one
checksum failure is detected. When enabling or disabling checksums, the
exit status is nonzero if the operation failed.
</para>
<para>
While checking or enabling checksums needs to scan or write every file in
the cluster, disabling checksums will only update the file
<filename>pg_control</filename>.
When verifying checksums, every file in the cluster is scanned. When
enabling checksums, every file in the cluster is rewritten. Disabling
checksums only updates the file <filename>pg_control</filename>.
</para>
</refsect1>
@ -218,10 +218,9 @@ PostgreSQL documentation
</para>
<para>
If <application>pg_checksums</application> is aborted or killed while
enabling or disabling checksums, the cluster will keep the same
configuration for data checksums as before the operation attempted.
<application>pg_checksums</application> can be restarted to
attempt again the same operation.
enabling or disabling checksums, the cluster's data checksum configuration
remains unchanged, and <application>pg_checksums</application> can be
re-run to perform the same operation.
</para>
</refsect1>
</refentry>