C comment: clarify that WAL files can be _recycled_ or removed

bmomjian · bmomjian · commit 8d981341a552 · 2023-11-25T10:48:18.000-05:00
Reported-by: Michael Paquier Discussion: https://postgr.es/m/CAB7nPqSDdF0heotQU3gsepgqx+9c+6KjLd3R6aNYH7KKfDd2ig@mail.gmail.com Author: Michael Paquier Backpatch-through: master
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
@@ -3692,7 +3692,8 @@ RemoveOldXlogFiles(XLogSegNo segno, XLogRecPtr lastredoptr, XLogRecPtr endptr,
 }
 
 /*
- * Remove WAL files that are not part of the given timeline's history.
+ * Recycle or remove WAL files that are not part of the given timeline's
+ * history.
  *
  * This is called during recovery, whenever we switch to follow a new
  * timeline, and at the end of recovery when we create a new timeline. We

Original file line number	Diff line number	Diff line change
`@@ -3692,7 +3692,8 @@ RemoveOldXlogFiles(XLogSegNo segno, XLogRecPtr lastredoptr, XLogRecPtr endptr,`
`3692`	`3692`	`}`
`3693`	`3693`
`3694`	`3694`	`/*`
`3695`		`- * Remove WAL files that are not part of the given timeline's history.`
	`3695`	`+ * Recycle or remove WAL files that are not part of the given timeline's`
	`3696`	`+ * history.`
`3696`	`3697`	`*`
`3697`	`3698`	`* This is called during recovery, whenever we switch to follow a new`
`3698`	`3699`	`* timeline, and at the end of recovery when we create a new timeline. We`