diff options
Diffstat (limited to 'src/include/nodes/execnodes.h')
| -rw-r--r-- | src/include/nodes/execnodes.h | 25 |
1 files changed, 23 insertions, 2 deletions
diff --git a/src/include/nodes/execnodes.h b/src/include/nodes/execnodes.h index a2a2a9f3d4d..54ce63f1477 100644 --- a/src/include/nodes/execnodes.h +++ b/src/include/nodes/execnodes.h @@ -1885,11 +1885,14 @@ typedef struct WindowAggState FmgrInfo *partEqfunctions; /* equality funcs for partition columns */ FmgrInfo *ordEqfunctions; /* equality funcs for ordering columns */ Tuplestorestate *buffer; /* stores rows of current partition */ - int current_ptr; /* read pointer # for current */ + int current_ptr; /* read pointer # for current row */ + int framehead_ptr; /* read pointer # for frame head, if used */ + int frametail_ptr; /* read pointer # for frame tail, if used */ + int grouptail_ptr; /* read pointer # for group tail, if used */ int64 spooled_rows; /* total # of rows in buffer */ int64 currentpos; /* position of current row in partition */ int64 frameheadpos; /* current frame head position */ - int64 frametailpos; /* current frame tail position */ + int64 frametailpos; /* current frame tail position (frame end+1) */ /* use struct pointer to avoid including windowapi.h here */ struct WindowObjectData *agg_winobj; /* winobj for aggregate fetches */ int64 aggregatedbase; /* start row for current aggregates */ @@ -1901,6 +1904,20 @@ typedef struct WindowAggState Datum startOffsetValue; /* result of startOffset evaluation */ Datum endOffsetValue; /* result of endOffset evaluation */ + /* these fields are used with RANGE offset PRECEDING/FOLLOWING: */ + FmgrInfo startInRangeFunc; /* in_range function for startOffset */ + FmgrInfo endInRangeFunc; /* in_range function for endOffset */ + Oid inRangeColl; /* collation for in_range tests */ + bool inRangeAsc; /* use ASC sort order for in_range tests? */ + bool inRangeNullsFirst; /* nulls sort first for in_range tests? */ + + /* these fields are used in GROUPS mode: */ + int64 currentgroup; /* peer group # of current row in partition */ + int64 frameheadgroup; /* peer group # of frame head row */ + int64 frametailgroup; /* peer group # of frame tail row */ + int64 groupheadpos; /* current row's peer group head position */ + int64 grouptailpos; /* " " " " tail position (group end+1) */ + MemoryContext partcontext; /* context for partition-lifespan data */ MemoryContext aggcontext; /* shared context for aggregate working data */ MemoryContext curaggcontext; /* current aggregate's working data */ @@ -1916,9 +1933,13 @@ typedef struct WindowAggState * date for current row */ bool frametail_valid; /* true if frametailpos is known up to * date for current row */ + bool grouptail_valid; /* true if grouptailpos is known up to + * date for current row */ TupleTableSlot *first_part_slot; /* first tuple of current or next * partition */ + TupleTableSlot *framehead_slot; /* first tuple of current frame */ + TupleTableSlot *frametail_slot; /* first tuple after current frame */ /* temporary slots for tuples fetched back from tuplestore */ TupleTableSlot *agg_row_slot; |