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Diffstat (limited to 'src/backend/storage/ipc/sinvaladt.c')
-rw-r--r--src/backend/storage/ipc/sinvaladt.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/backend/storage/ipc/sinvaladt.c b/src/backend/storage/ipc/sinvaladt.c
index 2da91738c32..c5748b690f4 100644
--- a/src/backend/storage/ipc/sinvaladt.c
+++ b/src/backend/storage/ipc/sinvaladt.c
@@ -198,7 +198,8 @@ typedef struct SISeg
/*
* We reserve a slot for each possible ProcNumber, plus one for each
* possible auxiliary process type. (This scheme assumes there is not
- * more than one of any auxiliary process type at a time.)
+ * more than one of any auxiliary process type at a time, except for
+ * IO workers.)
*/
#define NumProcStateSlots (MaxBackends + NUM_AUXILIARY_PROCS)