diff options
Diffstat (limited to 'src/include')
| -rw-r--r-- | src/include/executor/tuptable.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/src/include/executor/tuptable.h b/src/include/executor/tuptable.h index 6133dbcd0a3..b82655e7e55 100644 --- a/src/include/executor/tuptable.h +++ b/src/include/executor/tuptable.h @@ -167,6 +167,12 @@ struct TupleTableSlotOps Datum (*getsysattr) (TupleTableSlot *slot, int attnum, bool *isnull); /* + * Check if the tuple is created by the current transaction. Throws an + * error if the slot doesn't contain the storage tuple. + */ + bool (*is_current_xact_tuple) (TupleTableSlot *slot); + + /* * Make the contents of the slot solely depend on the slot, and not on * underlying resources (like another memory context, buffers, etc). */ @@ -427,6 +433,21 @@ slot_getsysattr(TupleTableSlot *slot, int attnum, bool *isnull) } /* + * slot_is_current_xact_tuple - check if the slot's current tuple is created + * by the current transaction. + * + * If the slot does not contain a storage tuple, this will throw an error. + * Hence before calling this function, callers should make sure that the + * slot type supports storage tuples and that there is currently one inside + * the slot. + */ +static inline bool +slot_is_current_xact_tuple(TupleTableSlot *slot) +{ + return slot->tts_ops->is_current_xact_tuple(slot); +} + +/* * ExecClearTuple - clear the slot's contents */ static inline TupleTableSlot * |