PostgreSQL Source Code  git master
hashdesc.c
Go to the documentation of this file.
1 /*-------------------------------------------------------------------------
2  *
3  * hashdesc.c
4  * rmgr descriptor routines for access/hash/hash.c
5  *
6  * Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
7  * Portions Copyright (c) 1994, Regents of the University of California
8  *
9  *
10  * IDENTIFICATION
11  * src/backend/access/rmgrdesc/hashdesc.c
12  *
13  *-------------------------------------------------------------------------
14  */
15 #include "postgres.h"
16 
17 #include "access/hash_xlog.h"
18 
19 void
21 {
22  char *rec = XLogRecGetData(record);
23  uint8 info = XLogRecGetInfo(record) & ~XLR_INFO_MASK;
24 
25  switch (info)
26  {
28  {
30 
31  appendStringInfo(buf, "num_tuples %g, fillfactor %d",
32  xlrec->num_tuples, xlrec->ffactor);
33  break;
34  }
36  {
38 
39  appendStringInfo(buf, "bmsize %d", xlrec->bmsize);
40  break;
41  }
42  case XLOG_HASH_INSERT:
43  {
44  xl_hash_insert *xlrec = (xl_hash_insert *) rec;
45 
46  appendStringInfo(buf, "off %u", xlrec->offnum);
47  break;
48  }
50  {
52 
53  appendStringInfo(buf, "bmsize %d, bmpage_found %c",
54  xlrec->bmsize, (xlrec->bmpage_found) ? 'T' : 'F');
55  break;
56  }
58  {
60 
61  appendStringInfo(buf, "new_bucket %u, meta_page_masks_updated %c, issplitpoint_changed %c",
62  xlrec->new_bucket,
63  (xlrec->flags & XLH_SPLIT_META_UPDATE_MASKS) ? 'T' : 'F',
64  (xlrec->flags & XLH_SPLIT_META_UPDATE_SPLITPOINT) ? 'T' : 'F');
65  break;
66  }
68  {
70 
71  appendStringInfo(buf, "old_bucket_flag %u, new_bucket_flag %u",
72  xlrec->old_bucket_flag, xlrec->new_bucket_flag);
73  break;
74  }
76  {
78 
79  appendStringInfo(buf, "ntups %d, is_primary %c",
80  xlrec->ntups,
81  xlrec->is_prim_bucket_same_wrt ? 'T' : 'F');
82  break;
83  }
85  {
87 
88  appendStringInfo(buf, "prevblkno %u, nextblkno %u, ntups %d, is_primary %c",
89  xlrec->prevblkno,
90  xlrec->nextblkno,
91  xlrec->ntups,
92  xlrec->is_prim_bucket_same_wrt ? 'T' : 'F');
93  break;
94  }
95  case XLOG_HASH_DELETE:
96  {
97  xl_hash_delete *xlrec = (xl_hash_delete *) rec;
98 
99  appendStringInfo(buf, "clear_dead_marking %c, is_primary %c",
100  xlrec->clear_dead_marking ? 'T' : 'F',
101  xlrec->is_primary_bucket_page ? 'T' : 'F');
102  break;
103  }
105  {
107 
108  appendStringInfo(buf, "ntuples %g",
109  xlrec->ntuples);
110  break;
111  }
113  {
115 
116  appendStringInfo(buf, "ntuples %d, latest removed xid %u",
117  xlrec->ntuples,
118  xlrec->latestRemovedXid);
119  break;
120  }
121  }
122 }
123 
124 const char *
126 {
127  const char *id = NULL;
128 
129  switch (info & ~XLR_INFO_MASK)
130  {
132  id = "INIT_META_PAGE";
133  break;
135  id = "INIT_BITMAP_PAGE";
136  break;
137  case XLOG_HASH_INSERT:
138  id = "INSERT";
139  break;
141  id = "ADD_OVFL_PAGE";
142  break;
144  id = "SPLIT_ALLOCATE_PAGE";
145  break;
147  id = "SPLIT_PAGE";
148  break;
150  id = "SPLIT_COMPLETE";
151  break;
153  id = "MOVE_PAGE_CONTENTS";
154  break;
156  id = "SQUEEZE_PAGE";
157  break;
158  case XLOG_HASH_DELETE:
159  id = "DELETE";
160  break;
162  id = "SPLIT_CLEANUP";
163  break;
165  id = "UPDATE_META_PAGE";
166  break;
168  id = "VACUUM_ONE_PAGE";
169  }
170 
171  return id;
172 }
#define XLOG_HASH_INSERT
Definition: hash_xlog.h:29
#define XLH_SPLIT_META_UPDATE_SPLITPOINT
Definition: hash_xlog.h:52
#define XLOG_HASH_INIT_BITMAP_PAGE
Definition: hash_xlog.h:28
unsigned char uint8
Definition: c.h:356
#define XLOG_HASH_SPLIT_CLEANUP
Definition: hash_xlog.h:40
bool clear_dead_marking
Definition: hash_xlog.h:186
const char * hash_identify(uint8 info)
Definition: hashdesc.c:125
#define XLOG_HASH_SPLIT_PAGE
Definition: hash_xlog.h:32
BlockNumber prevblkno
Definition: hash_xlog.h:161
bool is_prim_bucket_same_wrt
Definition: hash_xlog.h:164
#define XLogRecGetData(decoder)
Definition: xlogreader.h:246
void appendStringInfo(StringInfo str, const char *fmt,...)
Definition: stringinfo.c:78
BlockNumber nextblkno
Definition: hash_xlog.h:162
#define XLOG_HASH_ADD_OVFL_PAGE
Definition: hash_xlog.h:30
bool is_primary_bucket_page
Definition: hash_xlog.h:188
static char * buf
Definition: pg_test_fsync.c:68
#define XLOG_HASH_DELETE
Definition: hash_xlog.h:39
#define XLOG_HASH_INIT_META_PAGE
Definition: hash_xlog.h:27
#define XLogRecGetInfo(decoder)
Definition: xlogreader.h:242
#define XLOG_HASH_MOVE_PAGE_CONTENTS
Definition: hash_xlog.h:34
void hash_desc(StringInfo buf, XLogReaderState *record)
Definition: hashdesc.c:20
#define XLOG_HASH_VACUUM_ONE_PAGE
Definition: hash_xlog.h:45
#define XLR_INFO_MASK
Definition: xlogrecord.h:62
TransactionId latestRemovedXid
Definition: hash_xlog.h:253
OffsetNumber offnum
Definition: hash_xlog.h:64
#define XLOG_HASH_SPLIT_COMPLETE
Definition: hash_xlog.h:33
#define XLOG_HASH_SPLIT_ALLOCATE_PAGE
Definition: hash_xlog.h:31
#define XLOG_HASH_SQUEEZE_PAGE
Definition: hash_xlog.h:36
#define XLH_SPLIT_META_UPDATE_MASKS
Definition: hash_xlog.h:51
#define XLOG_HASH_UPDATE_META_PAGE
Definition: hash_xlog.h:43