postgres.git / summary / log / commit / refs

commit    1924ef41668773ad62d845eebc11ff35f17446ad
Author:   Alvaro Herrera <alvherre@alvh.no-ip.org>
Date:     Tue Aug 08 22:46:16 2017 +0000

    Reword some unclear comments


 src/backend/access/heap/heapam.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/src/backend/access/heap/heapam.c b/src/backend/access/heap/heapam.c
index 84b59c34100..4327be86100 100644
--- a/src/backend/access/heap/heapam.c
+++ b/src/backend/access/heap/heapam.c
@@ -3930,7 +3930,7 @@ l2:
 
 		/*
 		 * To prevent concurrent sessions from updating the tuple, we have to
-		 * temporarily mark it locked, while we release the lock.
+		 * temporarily mark it locked, while we release the page-level lock.
 		 *
 		 * To satisfy the rule that any xid potentially appearing in a buffer
 		 * written out to disk, we unfortunately have to WAL log this
@@ -3942,8 +3942,9 @@ l2:
 
 		/*
 		 * Compute xmax / infomask appropriate for locking the tuple. This has
-		 * to be done separately from the lock, because the potentially
-		 * created multixact would otherwise be wrong.
+		 * to be done separately from the combo that's going to be used for
+		 * updating, because the potentially created multixact would otherwise
+		 * be wrong.
 		 */
 		compute_new_xmax_infomask(HeapTupleHeaderGetRawXmax(oldtup.t_data),
 								  oldtup.t_data->t_infomask,


[parent: eca2f8a7dd9b]