diff options
Diffstat (limited to 'src/include/nodes/execnodes.h')
| -rw-r--r-- | src/include/nodes/execnodes.h | 29 |
1 files changed, 28 insertions, 1 deletions
diff --git a/src/include/nodes/execnodes.h b/src/include/nodes/execnodes.h index 9626dbf8b1c..83ed6c5234b 100644 --- a/src/include/nodes/execnodes.h +++ b/src/include/nodes/execnodes.h @@ -7,7 +7,7 @@ * Portions Copyright (c) 1996-2000, PostgreSQL, Inc * Portions Copyright (c) 1994, Regents of the University of California * - * $Id: execnodes.h,v 1.48 2000/08/24 03:29:13 tgl Exp $ + * $Id: execnodes.h,v 1.49 2000/09/12 21:07:10 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -469,11 +469,18 @@ typedef CommonState JoinState; /* ---------------- * NestLoopState information + * + * NeedNewOuter true if need new outer tuple on next call + * MatchedOuter true if found a join match for current outer tuple + * NullInnerTupleSlot prepared null tuple for left outer joins * ---------------- */ typedef struct NestLoopState { JoinState jstate; /* its first field is NodeTag */ + bool nl_NeedNewOuter; + bool nl_MatchedOuter; + TupleTableSlot *nl_NullInnerTupleSlot; } NestLoopState; /* ---------------- @@ -482,7 +489,13 @@ typedef struct NestLoopState * OuterSkipQual outerKey1 < innerKey1 ... * InnerSkipQual outerKey1 > innerKey1 ... * JoinState current "state" of join. see executor.h + * MatchedOuter true if found a join match for current outer tuple + * MatchedInner true if found a join match for current inner tuple + * OuterTupleSlot pointer to slot in tuple table for cur outer tuple + * InnerTupleSlot pointer to slot in tuple table for cur inner tuple * MarkedTupleSlot pointer to slot in tuple table for marked tuple + * NullOuterTupleSlot prepared null tuple for right outer joins + * NullInnerTupleSlot prepared null tuple for left outer joins * ---------------- */ typedef struct MergeJoinState @@ -491,7 +504,13 @@ typedef struct MergeJoinState List *mj_OuterSkipQual; List *mj_InnerSkipQual; int mj_JoinState; + bool mj_MatchedOuter; + bool mj_MatchedInner; + TupleTableSlot *mj_OuterTupleSlot; + TupleTableSlot *mj_InnerTupleSlot; TupleTableSlot *mj_MarkedTupleSlot; + TupleTableSlot *mj_NullOuterTupleSlot; + TupleTableSlot *mj_NullInnerTupleSlot; } MergeJoinState; /* ---------------- @@ -506,6 +525,10 @@ typedef struct MergeJoinState * hj_InnerHashKey the inner hash key in the hashjoin condition * hj_OuterTupleSlot tuple slot for outer tuples * hj_HashTupleSlot tuple slot for hashed tuples + * hj_NullInnerTupleSlot prepared null tuple for left outer joins + * hj_NeedNewOuter true if need new outer tuple on next call + * hj_MatchedOuter true if found a join match for current outer + * hj_hashdone true if hash-table-build phase is done * ---------------- */ typedef struct HashJoinState @@ -517,6 +540,10 @@ typedef struct HashJoinState Node *hj_InnerHashKey; TupleTableSlot *hj_OuterTupleSlot; TupleTableSlot *hj_HashTupleSlot; + TupleTableSlot *hj_NullInnerTupleSlot; + bool hj_NeedNewOuter; + bool hj_MatchedOuter; + bool hj_hashdone; } HashJoinState; |