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-rw-r--r--src/backend/utils/misc/guc.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/backend/utils/misc/guc.c b/src/backend/utils/misc/guc.c
index 260ec7b97e9..d626731723b 100644
--- a/src/backend/utils/misc/guc.c
+++ b/src/backend/utils/misc/guc.c
@@ -2583,7 +2583,7 @@ static struct config_int ConfigureNamesInt[] =
NULL
},
&vacuum_defer_cleanup_age,
- 0, 0, 1000000,
+ 0, 0, 1000000, /* see ComputeXidHorizons */
NULL, NULL, NULL
},