Fix the name of the first WAL segment file, in docs.

Previously the documentation explains that WAL segment files
start at 000000010000000000000000. But the first WAL segment file
that initdb creates is 000000010000000000000001 not
000000010000000000000000. This change was caused by old
commit 8c843fff2d, but the documentation had not been updated
a long time.

Back-patch to all supported branches.

Author: Fujii Masao
Reviewed-by: David Zhang
Discussion: https://postgr.es/m/CAHGQGwHOmGe2OqGOmp8cOfNVDivq7dbV74L5nUGr+3eVd2CU2Q@mail.gmail.com

diff --git a/doc/src/sgml/wal.sgml b/doc/src/sgml/wal.sgml
index 4eb8feb9037a02cf3345b6337dfdd3bd935eed7c..bd9fae544c1dfb7bd8ca0a1d97ee7226197952d7 100644 (file)
--- a/doc/src/sgml/wal.sgml
+++ b/doc/src/sgml/wal.sgml
@@ -758,7 +758,7 @@
    are described in <filename>access/xlogrecord.h</filename>; the record
    content is dependent on the type of event that is being logged.  Segment
    files are given ever-increasing numbers as names, starting at
-   <filename>000000010000000000000000</filename>.  The numbers do not wrap,
+   <filename>000000010000000000000001</filename>.  The numbers do not wrap,
    but it will take a very, very long time to exhaust the
    available stock of numbers.
   </para>