diff options
Diffstat (limited to 'src/include/access/heapam.h')
| -rw-r--r-- | src/include/access/heapam.h | 228 |
1 files changed, 120 insertions, 108 deletions
diff --git a/src/include/access/heapam.h b/src/include/access/heapam.h index 7666dc543f2..15f5685e86a 100644 --- a/src/include/access/heapam.h +++ b/src/include/access/heapam.h @@ -1,16 +1,16 @@ /*------------------------------------------------------------------------- * * heapam.h-- - * POSTGRES heap access method definitions. + * POSTGRES heap access method definitions. * * * Copyright (c) 1994, Regents of the University of California * - * $Id: heapam.h,v 1.11 1997/09/04 16:20:55 momjian Exp $ + * $Id: heapam.h,v 1.12 1997/09/07 04:55:55 momjian Exp $ * *------------------------------------------------------------------------- */ -#ifndef HEAPAM_H +#ifndef HEAPAM_H #define HEAPAM_H #include <access/htup.h> @@ -19,142 +19,154 @@ #include <utils/rel.h> /* ---------------------------------------------------------------- - * heap access method statistics + * heap access method statistics * ---------------------------------------------------------------- */ -typedef struct HeapAccessStatisticsData { - time_t init_global_timestamp; /* time global statistics started */ - time_t local_reset_timestamp; /* last time local reset was done */ - time_t last_request_timestamp; /* last time stats were requested */ - - int global_open; - int global_openr; - int global_close; - int global_beginscan; - int global_rescan; - int global_endscan; - int global_getnext; - int global_fetch; - int global_insert; - int global_delete; - int global_replace; - int global_markpos; - int global_restrpos; - int global_BufferGetRelation; - int global_RelationIdGetRelation; - int global_RelationIdGetRelation_Buf; - int global_RelationNameGetRelation; - int global_getreldesc; - int global_heapgettup; - int global_RelationPutHeapTuple; - int global_RelationPutLongHeapTuple; - - int local_open; - int local_openr; - int local_close; - int local_beginscan; - int local_rescan; - int local_endscan; - int local_getnext; - int local_fetch; - int local_insert; - int local_delete; - int local_replace; - int local_markpos; - int local_restrpos; - int local_BufferGetRelation; - int local_RelationIdGetRelation; - int local_RelationIdGetRelation_Buf; - int local_RelationNameGetRelation; - int local_getreldesc; - int local_heapgettup; - int local_RelationPutHeapTuple; - int local_RelationPutLongHeapTuple; -} HeapAccessStatisticsData; +typedef struct HeapAccessStatisticsData +{ + time_t init_global_timestamp; /* time global statistics + * started */ + time_t local_reset_timestamp; /* last time local reset + * was done */ + time_t last_request_timestamp; /* last time stats were + * requested */ + + int global_open; + int global_openr; + int global_close; + int global_beginscan; + int global_rescan; + int global_endscan; + int global_getnext; + int global_fetch; + int global_insert; + int global_delete; + int global_replace; + int global_markpos; + int global_restrpos; + int global_BufferGetRelation; + int global_RelationIdGetRelation; + int global_RelationIdGetRelation_Buf; + int global_RelationNameGetRelation; + int global_getreldesc; + int global_heapgettup; + int global_RelationPutHeapTuple; + int global_RelationPutLongHeapTuple; + + int local_open; + int local_openr; + int local_close; + int local_beginscan; + int local_rescan; + int local_endscan; + int local_getnext; + int local_fetch; + int local_insert; + int local_delete; + int local_replace; + int local_markpos; + int local_restrpos; + int local_BufferGetRelation; + int local_RelationIdGetRelation; + int local_RelationIdGetRelation_Buf; + int local_RelationNameGetRelation; + int local_getreldesc; + int local_heapgettup; + int local_RelationPutHeapTuple; + int local_RelationPutLongHeapTuple; +} HeapAccessStatisticsData; typedef HeapAccessStatisticsData *HeapAccessStatistics; #define IncrHeapAccessStat(x) \ - (heap_access_stats == NULL ? 0 : (heap_access_stats->x)++) + (heap_access_stats == NULL ? 0 : (heap_access_stats->x)++) /* ---------------- - * heap_getattr + * heap_getattr * - * Find a particular field in a row represented as a heap tuple. - * We return a pointer into that heap tuple, which points to the - * first byte of the value of the field in question. + * Find a particular field in a row represented as a heap tuple. + * We return a pointer into that heap tuple, which points to the + * first byte of the value of the field in question. * - * If the field in question has a NULL value, we return a null - * pointer and return <*isnull> == true. Otherwise, we return - * <*isnull> == false. + * If the field in question has a NULL value, we return a null + * pointer and return <*isnull> == true. Otherwise, we return + * <*isnull> == false. * - * <tup> is the pointer to the heap tuple. <attnum> is the attribute - * number of the column (field) caller wants. <tupleDesc> is a - * pointer to the structure describing the row and all its fields. + * <tup> is the pointer to the heap tuple. <attnum> is the attribute + * number of the column (field) caller wants. <tupleDesc> is a + * pointer to the structure describing the row and all its fields. * ---------------- */ #define heap_getattr(tup, b, attnum, tupleDesc, isnull) \ - (AssertMacro((tup) != NULL) ? \ - ((attnum) > (int) (tup)->t_natts) ? \ - (((isnull) ? (*(isnull) = true) : (char)NULL), (char *)NULL) : \ - ((attnum) > 0) ? \ - fastgetattr((tup), (attnum), (tupleDesc), (isnull)) : \ - (((isnull) ? (*(isnull) = false) : (char)NULL), heap_getsysattr((tup), (b), (attnum))) : \ - (char *)NULL) + (AssertMacro((tup) != NULL) ? \ + ((attnum) > (int) (tup)->t_natts) ? \ + (((isnull) ? (*(isnull) = true) : (char)NULL), (char *)NULL) : \ + ((attnum) > 0) ? \ + fastgetattr((tup), (attnum), (tupleDesc), (isnull)) : \ + (((isnull) ? (*(isnull) = false) : (char)NULL), heap_getsysattr((tup), (b), (attnum))) : \ + (char *)NULL) extern HeapAccessStatistics heap_access_stats; /* in stats.c */ /* ---------------- - * function prototypes for heap access method + * function prototypes for heap access method * ---------------- */ /* heap_create, heap_creatr, and heap_destroy are declared in catalog/heap.h */ /* heapam.c */ -extern void doinsert(Relation relation, HeapTuple tup); +extern void doinsert(Relation relation, HeapTuple tup); extern Relation heap_open(Oid relationId); extern Relation heap_openr(char *relationName); -extern void heap_close(Relation relation); -extern HeapScanDesc heap_beginscan(Relation relation, int atend, - TimeQual timeQual, unsigned nkeys, ScanKey key); -extern void heap_rescan(HeapScanDesc sdesc, bool scanFromEnd, ScanKey key); -extern void heap_endscan(HeapScanDesc sdesc); -extern HeapTuple heap_getnext(HeapScanDesc scandesc, int backw, Buffer *b); -extern HeapTuple heap_fetch(Relation relation, TimeQual timeQual, - ItemPointer tid, Buffer *b); -extern Oid heap_insert(Relation relation, HeapTuple tup); -extern int heap_delete(Relation relation, ItemPointer tid); -extern int heap_replace(Relation relation, ItemPointer otid, - HeapTuple tup); -extern void heap_markpos(HeapScanDesc sdesc); -extern void heap_restrpos(HeapScanDesc sdesc); +extern void heap_close(Relation relation); +extern HeapScanDesc +heap_beginscan(Relation relation, int atend, + TimeQual timeQual, unsigned nkeys, ScanKey key); +extern void heap_rescan(HeapScanDesc sdesc, bool scanFromEnd, ScanKey key); +extern void heap_endscan(HeapScanDesc sdesc); +extern HeapTuple heap_getnext(HeapScanDesc scandesc, int backw, Buffer * b); +extern HeapTuple +heap_fetch(Relation relation, TimeQual timeQual, + ItemPointer tid, Buffer * b); +extern Oid heap_insert(Relation relation, HeapTuple tup); +extern int heap_delete(Relation relation, ItemPointer tid); +extern int +heap_replace(Relation relation, ItemPointer otid, + HeapTuple tup); +extern void heap_markpos(HeapScanDesc sdesc); +extern void heap_restrpos(HeapScanDesc sdesc); /* in common/heaptuple.c */ -extern Size ComputeDataSize(TupleDesc tupleDesc, Datum value[], char nulls[]); -extern void DataFill(char *data, TupleDesc tupleDesc, - Datum value[], char nulls[], char *infomask, - bits8 *bit); -extern int heap_attisnull(HeapTuple tup, int attnum); -extern int heap_sysattrlen(AttrNumber attno); -extern bool heap_sysattrbyval(AttrNumber attno); -extern char *heap_getsysattr(HeapTuple tup, Buffer b, int attnum); -extern char *fastgetattr(HeapTuple tup, int attnum, - TupleDesc att, bool *isnull); +extern Size ComputeDataSize(TupleDesc tupleDesc, Datum value[], char nulls[]); +extern void +DataFill(char *data, TupleDesc tupleDesc, + Datum value[], char nulls[], char *infomask, + bits8 * bit); +extern int heap_attisnull(HeapTuple tup, int attnum); +extern int heap_sysattrlen(AttrNumber attno); +extern bool heap_sysattrbyval(AttrNumber attno); +extern char *heap_getsysattr(HeapTuple tup, Buffer b, int attnum); +extern char * +fastgetattr(HeapTuple tup, int attnum, + TupleDesc att, bool * isnull); extern HeapTuple heap_copytuple(HeapTuple tuple); -extern HeapTuple heap_formtuple(TupleDesc tupleDescriptor, - Datum value[], char nulls[]); -extern HeapTuple heap_modifytuple(HeapTuple tuple, Buffer buffer, - Relation relation, Datum replValue[], char replNull[], char repl[]); -HeapTuple heap_addheader(uint32 natts, int structlen, char *structure); +extern HeapTuple +heap_formtuple(TupleDesc tupleDescriptor, + Datum value[], char nulls[]); +extern HeapTuple +heap_modifytuple(HeapTuple tuple, Buffer buffer, + Relation relation, Datum replValue[], char replNull[], char repl[]); +HeapTuple heap_addheader(uint32 natts, int structlen, char *structure); /* in common/heap/stats.c */ -extern void PrintHeapAccessStatistics(HeapAccessStatistics stats); -extern void initam(void); +extern void PrintHeapAccessStatistics(HeapAccessStatistics stats); +extern void initam(void); /* hio.c */ -extern void RelationPutHeapTuple(Relation relation, BlockNumber blockIndex, - HeapTuple tuple); -extern void RelationPutHeapTupleAtEnd(Relation relation, HeapTuple tuple); +extern void +RelationPutHeapTuple(Relation relation, BlockNumber blockIndex, + HeapTuple tuple); +extern void RelationPutHeapTupleAtEnd(Relation relation, HeapTuple tuple); -#endif /* HEAPAM_H */ +#endif /* HEAPAM_H */ |