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Improve description of buffer used to store records in WAL reader

author Michael Paquier <michael@paquier.xyz>

2018年11月20日 23:43:32 +0000 (08:43 +0900)

committer Michael Paquier <michael@paquier.xyz>

2018年11月20日 23:43:32 +0000 (08:43 +0900)

The dedicated private buffer to store records is used only for these
crossing a page boundary since 285bd0ac, but its description did not
match completely the reality.

Reported-by: Andrey Lepikhov
Author: Michael Paquier
Discussion: https://postgr.es/m/49518b48-2036-5e43-1818-0f594e375e76@postgrespro.ru

src/include/access/xlogreader.h patch | blob | blame | history

diff --git a/src/include/access/xlogreader.h b/src/include/access/xlogreader.h

index 40116f8ecb4a813b82a8020004a4d97c16a381c4..44ca2bc2fdae20221d9aa31683fa212f7f046fcb 100644 (file)

--- a/src/include/access/xlogreader.h

+++ b/src/include/access/xlogreader.h

@@ -185,7 +185,10 @@ struct XLogReaderState

TimeLineID nextTLI;

- /* Buffer for current ReadRecord result (expandable) */

+ /*

+ * Buffer for current ReadRecord result (expandable), used when a record

+ * crosses a page boundary.

+ */

char *readRecordBuf;

uint32 readRecordBufSize;

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