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Diffstat (limited to 'src/backend/access/table/tableam.c')
| -rw-r--r-- | src/backend/access/table/tableam.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/backend/access/table/tableam.c b/src/backend/access/table/tableam.c index c814733b222..4b2bb29559a 100644 --- a/src/backend/access/table/tableam.c +++ b/src/backend/access/table/tableam.c @@ -196,6 +196,10 @@ table_beginscan_parallel(Relation relation, ParallelTableScanDesc parallel_scan) * optimized, but is unlikely to matter from a performance POV. If there * frequently are live index pointers also matching a unique index key, the * CPU overhead of this routine is unlikely to matter. + * + * Note that *tid may be modified when we return true if the AM supports + * storing multiple row versions reachable via a single index entry (like + * heap's HOT). */ bool table_index_fetch_tuple_check(Relation rel, |