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authorFujii Masao2024-12-15 02:18:18 +0000
committerFujii Masao2024-12-15 02:20:18 +0000
commit87e16d632622c622244dba8d1bfc8afbf222d614 (patch)
treee2b3cde9906af5da977ea452388486165e7f54b7 /doc/src
parent3652de36e4323e9bd528011b181ee46252c4ce58 (diff)
doc: Clarify old WAL files are kept until they are summarized.
The documentation in wal.sgml explains that old WAL files cannot be removed or recycled until they are archived (when WAL archiving is used) or replicated (when using replication slots). However, it did not mention that, similarly, old WAL files are also kept until they are summarized if WAL summarization is enabled. This commit adds that clarification to the documentation. Back-patch to v17 where WAL summarization was added. Author: Fujii Masao Reviewed-by: Michael Paquier Discussion: https://postgr.es/m/[email protected]
Diffstat (limited to 'doc/src')
-rw-r--r--doc/src/sgml/wal.sgml3
1 files changed, 3 insertions, 0 deletions
diff --git a/doc/src/sgml/wal.sgml b/doc/src/sgml/wal.sgml
index d5df65bc693..e7f409ddd64 100644
--- a/doc/src/sgml/wal.sgml
+++ b/doc/src/sgml/wal.sgml
@@ -643,6 +643,9 @@
until the situation is resolved. A slow or failed standby server that
uses a replication slot will have the same effect (see
<xref linkend="streaming-replication-slots"/>).
+ Similarly, if <link linkend="runtime-config-wal-summarization">
+ WAL summarization</link> is enabled, old segments are kept
+ until they are summarized.
</para>
<para>