PostgreSQL Source Code: src/backend/access/rmgrdesc/brindesc.c Source File

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brindesc.c
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1/*-------------------------------------------------------------------------
2 *
3 * brindesc.c
4 * rmgr descriptor routines for BRIN indexes
5 *
6 * Portions Copyright (c) 1996-2025, PostgreSQL Global Development Group
7 * Portions Copyright (c) 1994, Regents of the University of California
8 *
9 *
10 * IDENTIFICATION
11 * src/backend/access/rmgrdesc/brindesc.c
12 *
13 *-------------------------------------------------------------------------
14 */
15#include "postgres.h"
16
17#include "access/brin_xlog.h"
18
19void
20 brin_desc(StringInfo buf, XLogReaderState *record)
21{
22 char *rec = XLogRecGetData(record);
23 uint8 info = XLogRecGetInfo(record) & ~XLR_INFO_MASK;
24
25 info &= XLOG_BRIN_OPMASK;
26 if (info == XLOG_BRIN_CREATE_INDEX)
27 {
28 xl_brin_createidx *xlrec = (xl_brin_createidx *) rec;
29
30 appendStringInfo(buf, "v%d pagesPerRange %u",
31 xlrec->version, xlrec->pagesPerRange);
32 }
33 else if (info == XLOG_BRIN_INSERT)
34 {
35 xl_brin_insert *xlrec = (xl_brin_insert *) rec;
36
37 appendStringInfo(buf, "heapBlk %u pagesPerRange %u offnum %u",
38 xlrec->heapBlk,
39 xlrec->pagesPerRange,
40 xlrec->offnum);
41 }
42 else if (info == XLOG_BRIN_UPDATE)
43 {
44 xl_brin_update *xlrec = (xl_brin_update *) rec;
45
46 appendStringInfo(buf, "heapBlk %u pagesPerRange %u old offnum %u, new offnum %u",
47 xlrec->insert.heapBlk,
48 xlrec->insert.pagesPerRange,
49 xlrec->oldOffnum,
50 xlrec->insert.offnum);
51 }
52 else if (info == XLOG_BRIN_SAMEPAGE_UPDATE)
53 {
54 xl_brin_samepage_update *xlrec = (xl_brin_samepage_update *) rec;
55
56 appendStringInfo(buf, "offnum %u", xlrec->offnum);
57 }
58 else if (info == XLOG_BRIN_REVMAP_EXTEND)
59 {
60 xl_brin_revmap_extend *xlrec = (xl_brin_revmap_extend *) rec;
61
62 appendStringInfo(buf, "targetBlk %u", xlrec->targetBlk);
63 }
64 else if (info == XLOG_BRIN_DESUMMARIZE)
65 {
66 xl_brin_desummarize *xlrec = (xl_brin_desummarize *) rec;
67
68 appendStringInfo(buf, "pagesPerRange %u, heapBlk %u, page offset %u",
69 xlrec->pagesPerRange, xlrec->heapBlk, xlrec->regOffset);
70 }
71}
72
73const char *
74 brin_identify(uint8 info)
75{
76 const char *id = NULL;
77
78 switch (info & ~XLR_INFO_MASK)
79 {
80 case XLOG_BRIN_CREATE_INDEX:
81 id = "CREATE_INDEX";
82 break;
83 case XLOG_BRIN_INSERT:
84 id = "INSERT";
85 break;
86 case XLOG_BRIN_INSERT | XLOG_BRIN_INIT_PAGE:
87 id = "INSERT+INIT";
88 break;
89 case XLOG_BRIN_UPDATE:
90 id = "UPDATE";
91 break;
92 case XLOG_BRIN_UPDATE | XLOG_BRIN_INIT_PAGE:
93 id = "UPDATE+INIT";
94 break;
95 case XLOG_BRIN_SAMEPAGE_UPDATE:
96 id = "SAMEPAGE_UPDATE";
97 break;
98 case XLOG_BRIN_REVMAP_EXTEND:
99 id = "REVMAP_EXTEND";
100 break;
101 case XLOG_BRIN_DESUMMARIZE:
102 id = "DESUMMARIZE";
103 break;
104 }
105
106 return id;
107}
#define XLOG_BRIN_REVMAP_EXTEND
Definition: brin_xlog.h:35
#define XLOG_BRIN_SAMEPAGE_UPDATE
Definition: brin_xlog.h:34
#define XLOG_BRIN_DESUMMARIZE
Definition: brin_xlog.h:36
#define XLOG_BRIN_CREATE_INDEX
Definition: brin_xlog.h:31
#define XLOG_BRIN_OPMASK
Definition: brin_xlog.h:38
#define XLOG_BRIN_INIT_PAGE
Definition: brin_xlog.h:43
#define XLOG_BRIN_UPDATE
Definition: brin_xlog.h:33
#define XLOG_BRIN_INSERT
Definition: brin_xlog.h:32
void brin_desc(StringInfo buf, XLogReaderState *record)
Definition: brindesc.c:20
const char * brin_identify(uint8 info)
Definition: brindesc.c:74
uint8_t uint8
Definition: c.h:536
static char * buf
Definition: pg_test_fsync.c:72
void appendStringInfo(StringInfo str, const char *fmt,...)
Definition: stringinfo.c:145
Definition: brin_xlog.h:51
uint16 version
Definition: brin_xlog.h:53
BlockNumber pagesPerRange
Definition: brin_xlog.h:52
Definition: brin_xlog.h:134
BlockNumber pagesPerRange
Definition: brin_xlog.h:135
BlockNumber heapBlk
Definition: brin_xlog.h:137
OffsetNumber regOffset
Definition: brin_xlog.h:139
Definition: brin_xlog.h:64
OffsetNumber offnum
Definition: brin_xlog.h:71
BlockNumber pagesPerRange
Definition: brin_xlog.h:68
BlockNumber heapBlk
Definition: brin_xlog.h:65
Definition: brin_xlog.h:116
BlockNumber targetBlk
Definition: brin_xlog.h:121
Definition: brin_xlog.h:103
OffsetNumber offnum
Definition: brin_xlog.h:104
Definition: brin_xlog.h:88
OffsetNumber oldOffnum
Definition: brin_xlog.h:90
xl_brin_insert insert
Definition: brin_xlog.h:92
#define XLogRecGetInfo(decoder)
Definition: xlogreader.h:410
#define XLogRecGetData(decoder)
Definition: xlogreader.h:415
#define XLR_INFO_MASK
Definition: xlogrecord.h:62

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