From 92e0d65605b185588b57415a640187b4ccc2ae74 Mon Sep 17 00:00:00 2001 From: Andy Fan Date: Mon, 23 Sep 2024 08:42:31 +0800 Subject: [PATCH v20240923 1/1] Add unlikely to FullTransactionIdAdvanc check. The 'FullTransactionIdPrecedes(*dest, FirstNormalFullTransactionId)' are unlikely to be true, so add a 'unlikely' to make the code statically predictable. --- src/include/access/transam.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/include/access/transam.h b/src/include/access/transam.h index 28a2d287fd..8a0a67d4a4 100644 --- a/src/include/access/transam.h +++ b/src/include/access/transam.h @@ -130,7 +130,7 @@ FullTransactionIdAdvance(FullTransactionId *dest) dest->value++; /* see FullTransactionIdAdvance() */ - if (FullTransactionIdPrecedes(*dest, FirstNormalFullTransactionId)) + if (unlikely(FullTransactionIdPrecedes(*dest, FirstNormalFullTransactionId))) return; while (XidFromFullTransactionId(*dest) < FirstNormalTransactionId) -- 2.45.1