diff options
Diffstat (limited to 'src/backend/access/heap/vacuumlazy.c')
| -rw-r--r-- | src/backend/access/heap/vacuumlazy.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/src/backend/access/heap/vacuumlazy.c b/src/backend/access/heap/vacuumlazy.c index b1fbfca087e..2cbcf5e5db2 100644 --- a/src/backend/access/heap/vacuumlazy.c +++ b/src/backend/access/heap/vacuumlazy.c @@ -1263,9 +1263,12 @@ lazy_scan_heap(LVRelState *vacrel) * Consider if we definitely have enough space to process TIDs on page * already. If we are close to overrunning the available space for * dead_items TIDs, pause and do a cycle of vacuuming before we tackle - * this page. + * this page. However, let's force at least one page-worth of tuples + * to be stored as to ensure we do at least some work when the memory + * configured is so low that we run out before storing anything. */ - if (TidStoreMemoryUsage(vacrel->dead_items) > vacrel->dead_items_info->max_bytes) + if (vacrel->dead_items_info->num_items > 0 && + TidStoreMemoryUsage(vacrel->dead_items) > vacrel->dead_items_info->max_bytes) { /* * Before beginning index vacuuming, we release any pin we may |