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authorÁlvaro Herrera <alvherre@alvh.no-ip.org>2024-12-03 15:50:03 +0100
committerÁlvaro Herrera <alvherre@alvh.no-ip.org>2024-12-03 15:50:03 +0100
commit1e5ef3a2a17974f574b90b86f491d74e32615987 (patch)
tree49c665482d0b7b859141ee6403239c0f5dd5e10d
parent4cc2a449802ec654b1b3ac4db698c3af4e7fd9f7 (diff)
downloadpostgresql-1e5ef3a2a17974f574b90b86f491d74e32615987.tar.gz
postgresql-1e5ef3a2a17974f574b90b86f491d74e32615987.zip
Drop "Lock" suffix from LWLock wait event names
Commit da952b415f44 unintentially reverted the SQL-visible part of commit 14a910109126, which breaks queries joining pg_wait_events with pg_stat_acivity. Remove the suffix again. Backpatch to 17. Reported-by: Christophe Courtois <christophe.courtois@dalibo.com> Author: Bertrand Drouvot <bertranddrouvot.pg@gmail.com> Discussion: https://postgr.es/m/18728-450924477056a339%40postgresql.org Discussion: https://postgr.es/m/Z01w1+LihtRiS0Te@ip-10-97-1-34.eu-west-3.compute.internal
-rw-r--r--src/backend/storage/lmgr/generate-lwlocknames.pl1
-rw-r--r--src/backend/storage/lmgr/lwlock.c4
2 files changed, 3 insertions, 2 deletions
diff --git a/src/backend/storage/lmgr/generate-lwlocknames.pl b/src/backend/storage/lmgr/generate-lwlocknames.pl
index eaddd9d3b97..4eee6b47f15 100644
--- a/src/backend/storage/lmgr/generate-lwlocknames.pl
+++ b/src/backend/storage/lmgr/generate-lwlocknames.pl
@@ -107,6 +107,7 @@ while (<$lwlocklist>)
$lastlockidx = $lockidx;
$continue = ",\n";
+ # Add a "Lock" suffix to each lock name, as the C code depends on that
print $h "#define ${lockname}Lock (&MainLWLockArray[$lockidx].lock)\n";
}
diff --git a/src/backend/storage/lmgr/lwlock.c b/src/backend/storage/lmgr/lwlock.c
index db6ed784ab3..9cf3e4f4f3a 100644
--- a/src/backend/storage/lmgr/lwlock.c
+++ b/src/backend/storage/lmgr/lwlock.c
@@ -108,7 +108,7 @@ StaticAssertDecl(LW_VAL_EXCLUSIVE > (uint32) MAX_BACKENDS,
/*
* There are three sorts of LWLock "tranches":
*
- * 1. The individually-named locks defined in lwlocknames.h each have their
+ * 1. The individually-named locks defined in lwlocklist.h each have their
* own tranche. We absorb the names of these tranches from there into
* BuiltinTrancheNames here.
*
@@ -124,7 +124,7 @@ StaticAssertDecl(LW_VAL_EXCLUSIVE > (uint32) MAX_BACKENDS,
* ... and do not forget to update the documentation's list of wait events.
*/
static const char *const BuiltinTrancheNames[] = {
-#define PG_LWLOCK(id, lockname) [id] = CppAsString(lockname) "Lock",
+#define PG_LWLOCK(id, lockname) [id] = CppAsString(lockname),
#include "storage/lwlocklist.h"
#undef PG_LWLOCK
[LWTRANCHE_XACT_BUFFER] = "XactBuffer",