dont_change_thistimelineid.patch

text/x-patch

Filename: dont_change_thistimelineid.patch

Type: text/x-patch

Part: 0

Message: Re: PITR promote bug: Checkpointer writes to older timeline

Patch

Same data as JSON: GET /api/v1/attachments/:id/patch the parsed metadata as JSON — format, series position, per-file stats; never the diff bytes. API reference →

Format: unified

File	+	−
src/backend/access/transam/twophase.c	7	0

diff --git a/src/backend/access/transam/twophase.c b/src/backend/access/transam/twophase.c
index 80d2d20d6c..ab9ac0cd5a 100644
--- a/src/backend/access/transam/twophase.c
+++ b/src/backend/access/transam/twophase.c
@@ -1324,6 +1324,7 @@ XlogReadTwoPhaseData(XLogRecPtr lsn, char **buf, int *len)
 	XLogRecord *record;
 	XLogReaderState *xlogreader;
 	char	   *errormsg;
+	TimeLineID	currtli = ThisTimeLineID;
 
 	xlogreader = XLogReaderAllocate(wal_segment_size, NULL,
 									XL_ROUTINE(.page_read = &read_local_xlog_page,
@@ -1358,6 +1359,12 @@ XlogReadTwoPhaseData(XLogRecPtr lsn, char **buf, int *len)
 	memcpy(*buf, XLogRecGetData(xlogreader), sizeof(char) * XLogRecGetDataLen(xlogreader));
 
 	XLogReaderFree(xlogreader);
+
+	/*
+	 * This function reads a record not as a part of replication so we don't
+	 * want to let XLogReadRecord to change ThisTimeLineID.
+	 */
+	ThisTimeLineID = currtli;
 }