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authorBruce Momjian <bruce@momjian.us>2023-11-24 17:56:28 -0500
committerBruce Momjian <bruce@momjian.us>2023-11-24 17:56:28 -0500
commitc136eb02981566d56e950f12ab7ee4a6ea51d698 (patch)
tree6dfc2089acdc9909ec02ab6f40d2d9eca0996ec5
parent7471230cc697fec3dc3c4094aa81469c02fa53c6 (diff)
doc: mention vacuum's removal of commit timestamp information
Reported-by: Kyotaro HORIGUCHI Discussion: https://postgr.es/m/20180622.172132.230342845.horiguchi.kyotaro@lab.ntt.co.jp Co-authored-by: Kyotaro HORIGUCHI Backpatch-through: 16
-rw-r--r--doc/src/sgml/func.sgml3
1 files changed, 2 insertions, 1 deletions
diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 13ce7f856a3..260a1c91733 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -25704,7 +25704,8 @@ SELECT collation for ('foo' COLLATE "de_DE");
They only provide useful data when the
<xref linkend="guc-track-commit-timestamp"/> configuration option is
enabled, and only for transactions that were committed after it was
- enabled.
+ enabled. Commit timestamp information is routinely removed during
+ vacuum.
</para>
<table id="functions-commit-timestamp">