diff options
Diffstat (limited to 'src/include/nodes/execnodes.h')
| -rw-r--r-- | src/include/nodes/execnodes.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/src/include/nodes/execnodes.h b/src/include/nodes/execnodes.h index 85fac8ab91b..35c28a61431 100644 --- a/src/include/nodes/execnodes.h +++ b/src/include/nodes/execnodes.h @@ -818,6 +818,18 @@ typedef struct DomainConstraintState * ---------------------------------------------------------------- */ +struct PlanState; + +/* ---------------- + * ExecProcNodeMtd + * + * This is the method called by ExecProcNode to return the next tuple + * from an executor node. It returns NULL, or an empty TupleTableSlot, + * if no more tuples are available. + * ---------------- + */ +typedef TupleTableSlot *(*ExecProcNodeMtd) (struct PlanState *pstate); + /* ---------------- * PlanState node * @@ -835,6 +847,10 @@ typedef struct PlanState * nodes point to one EState for the whole * top-level plan */ + ExecProcNodeMtd ExecProcNode; /* function to return next tuple */ + ExecProcNodeMtd ExecProcNodeReal; /* actual function, if above is a + * wrapper */ + Instrumentation *instrument; /* Optional runtime stats for this node */ WorkerInstrumentation *worker_instrument; /* per-worker instrumentation */ |