diff --git a/doc/src/sgml/wal.sgml b/doc/src/sgml/wal.sgml index e7980b386e..faac54530d 100644 --- a/doc/src/sgml/wal.sgml +++ b/doc/src/sgml/wal.sgml @@ -481,9 +481,9 @@ There will always be at least one WAL segment file, and will normally - not be more files than the higher of or - (2 + checkpoint_completion_target) * checkpoint_segments + 1. - Each segment file is normally 16 MB (though this size can be + not be more than (2 + checkpoint_completion_target) * checkpoint_segments + 1 + or checkpoint_segments + + 1 + files. Each segment file is normally 16 MB (though this size can be altered when building the server). You can use this to estimate space requirements for WAL. Ordinarily, when old log segment files are no longer needed, they