1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
|
/*-------------------------------------------------------------------------
*
* vacuum.h
* header file for postgres vacuum cleaner
*
*
* Portions Copyright (c) 1996-2000, PostgreSQL, Inc
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: vacuum.h,v 1.32 2000/07/14 22:17:57 tgl Exp $
*
*-------------------------------------------------------------------------
*/
#ifndef VACUUM_H
#define VACUUM_H
#include "catalog/pg_attribute.h"
#include "catalog/pg_index.h"
#include "fmgr.h"
#include "nodes/pg_list.h"
#include "storage/itemptr.h"
typedef struct VAttListData
{
int val_dummy;
struct VAttListData *val_next;
} VAttListData;
typedef VAttListData *VAttList;
typedef struct VacPageData
{
BlockNumber blkno; /* BlockNumber of this Page */
Size free; /* FreeSpace on this Page */
uint16 offsets_used; /* Number of OffNums used by
* vacuum */
uint16 offsets_free; /* Number of OffNums free or to be
* free */
OffsetNumber offsets[1];/* Array of its OffNums */
} VacPageData;
typedef VacPageData *VacPage;
typedef struct VacPageListData
{
int empty_end_pages; /* Number of "empty" end-pages */
int num_pages; /* Number of pages in pagedesc */
int num_allocated_pages; /* Number of allocated
* pages in pagedesc */
VacPage *pagedesc; /* Descriptions of pages */
} VacPageListData;
typedef VacPageListData *VacPageList;
typedef struct
{
Form_pg_attribute attr;
Datum best,
guess1,
guess2,
max,
min;
int best_len,
guess1_len,
guess2_len,
max_len,
min_len;
long best_cnt,
guess1_cnt,
guess1_hits,
guess2_hits,
null_cnt,
nonnull_cnt,
max_cnt,
min_cnt;
FmgrInfo f_cmpeq,
f_cmplt,
f_cmpgt;
Oid op_cmplt;
regproc outfunc;
Oid typelem;
bool initialized;
} VacAttrStats;
typedef struct VRelListData
{
Oid vrl_relid;
struct VRelListData *vrl_next;
} VRelListData;
typedef VRelListData *VRelList;
typedef struct VTupleLinkData
{
ItemPointerData new_tid;
ItemPointerData this_tid;
} VTupleLinkData;
typedef VTupleLinkData *VTupleLink;
typedef struct VTupleMoveData
{
ItemPointerData tid; /* tuple ID */
VacPage vacpage; /* where to move */
bool cleanVpd; /* clean vacpage before using */
} VTupleMoveData;
typedef VTupleMoveData *VTupleMove;
typedef struct VRelStats
{
Oid relid;
int num_tuples;
int num_pages;
Size min_tlen;
Size max_tlen;
bool hasindex;
int num_vtlinks;
VTupleLink vtlinks;
} VRelStats;
extern bool VacuumRunning;
extern void vc_abort(void);
extern void vacuum(char *vacrel, bool verbose, bool analyze, List *anal_cols);
extern void analyze_rel(Oid relid, List *anal_cols2, int MESSAGE_LEVEL);
#define ATTNVALS_SCALE 1000000000 /* XXX so it can act as a float4 */
#endif /* VACUUM_H */
|
