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| author | Tom Lane | 2013-12-12 17:39:57 +0000 |
|---|---|---|
| committer | Tom Lane | 2013-12-12 17:39:57 +0000 |
| commit | fcff4bd312bd70bfa01295a7c5e4db959ae105c8 (patch) | |
| tree | cde72b370bb158cb949cae724b752b3e044defb1 /doc/src | |
| parent | 9c9a1f2ebb00f96f1164f01006ab9861b36f1ab1 (diff) | |
Fix ancient docs/comments thinko: XID comparison is mod 2^32, not 2^31.
Pointed out by Gianni Ciolli.
Diffstat (limited to 'doc/src')
| -rw-r--r-- | doc/src/sgml/maintenance.sgml | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/doc/src/sgml/maintenance.sgml b/doc/src/sgml/maintenance.sgml index e9b8f97ae53..3577418a162 100644 --- a/doc/src/sgml/maintenance.sgml +++ b/doc/src/sgml/maintenance.sgml @@ -401,7 +401,7 @@ as <literal>FrozenXID</>. This XID does not follow the normal XID comparison rules and is always considered older than every normal XID. Normal XIDs are - compared using modulo-2<superscript>31</> arithmetic. This means + compared using modulo-2<superscript>32</> arithmetic. This means that for every normal XID, there are two billion XIDs that are <quote>older</> and two billion that are <quote>newer</>; another way to say it is that the normal XID space is circular with no |