diff options
Diffstat (limited to 'src/include/executor/tuptable.h')
| -rw-r--r-- | src/include/executor/tuptable.h | 76 |
1 files changed, 39 insertions, 37 deletions
diff --git a/src/include/executor/tuptable.h b/src/include/executor/tuptable.h index 4357e1240de..fcef30cd8e4 100644 --- a/src/include/executor/tuptable.h +++ b/src/include/executor/tuptable.h @@ -1,16 +1,16 @@ /*------------------------------------------------------------------------- * * tuptable.h-- - * tuple table support stuff + * tuple table support stuff * * * Copyright (c) 1994, Regents of the University of California * - * $Id: tuptable.h,v 1.4 1996/11/04 08:52:47 scrappy Exp $ + * $Id: tuptable.h,v 1.5 1997/09/07 04:58:03 momjian Exp $ * * NOTES - * The tuple table interface is getting pretty ugly. - * It should be redesigned soon. + * The tuple table interface is getting pretty ugly. + * It should be redesigned soon. * *------------------------------------------------------------------------- */ @@ -22,55 +22,57 @@ #include <access/htup.h> /* ---------------- - * Note: the executor tuple table is managed and manipulated by special - * code and macros in executor/execTuples.c and tupTable.h + * Note: the executor tuple table is managed and manipulated by special + * code and macros in executor/execTuples.c and tupTable.h * - * TupleTableSlot information + * TupleTableSlot information * - * shouldFree boolean - should we call pfree() on tuple - * descIsNew boolean - true when tupleDescriptor changes - * tupleDescriptor type information kept regarding the tuple data - * buffer the buffer for tuples pointing to disk pages + * shouldFree boolean - should we call pfree() on tuple + * descIsNew boolean - true when tupleDescriptor changes + * tupleDescriptor type information kept regarding the tuple data + * buffer the buffer for tuples pointing to disk pages * - * The executor stores pointers to tuples in a ``tuple table'' - * which is composed of TupleTableSlot's. Some of the tuples - * are pointers to buffer pages and others are pointers to - * palloc'ed memory and the shouldFree variable tells us when - * we may call pfree() on a tuple. -cim 9/23/90 + * The executor stores pointers to tuples in a ``tuple table'' + * which is composed of TupleTableSlot's. Some of the tuples + * are pointers to buffer pages and others are pointers to + * palloc'ed memory and the shouldFree variable tells us when + * we may call pfree() on a tuple. -cim 9/23/90 * - * In the implementation of nested-dot queries such as - * "retrieve (EMP.hobbies.all)", a single scan may return tuples - * of many types, so now we return pointers to tuple descriptors - * along with tuples returned via the tuple table. -cim 1/18/90 + * In the implementation of nested-dot queries such as + * "retrieve (EMP.hobbies.all)", a single scan may return tuples + * of many types, so now we return pointers to tuple descriptors + * along with tuples returned via the tuple table. -cim 1/18/90 * ---------------- */ -typedef struct TupleTableSlot { - NodeTag type; - HeapTuple val; - bool ttc_shouldFree; - bool ttc_descIsNew; - TupleDesc ttc_tupleDescriptor; - Buffer ttc_buffer; - int ttc_whichplan; -} TupleTableSlot; +typedef struct TupleTableSlot +{ + NodeTag type; + HeapTuple val; + bool ttc_shouldFree; + bool ttc_descIsNew; + TupleDesc ttc_tupleDescriptor; + Buffer ttc_buffer; + int ttc_whichplan; +} TupleTableSlot; /* ---------------- - * tuple table data structure + * tuple table data structure * ---------------- */ -typedef struct TupleTableData { - int size; /* size of the table */ - int next; /* next available slot number */ - TupleTableSlot *array; /* array of TupleTableSlot's */ -} TupleTableData; +typedef struct TupleTableData +{ + int size; /* size of the table */ + int next; /* next available slot number */ + TupleTableSlot *array; /* array of TupleTableSlot's */ +} TupleTableData; typedef TupleTableData *TupleTable; -/* +/* tuple table macros are all excised from the system now see executor.h for decls of functions defined in execTuples.c - jolly */ -#endif /* TUPTABLE_H */ +#endif /* TUPTABLE_H */ |