1/*-------------------------------------------------------------------------
2 *
3 * spgdesc.c
4 * rmgr descriptor routines for access/spgist/spgxlog.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/spgdesc.c
12 *
13 *-------------------------------------------------------------------------
14 */
15#include "postgres.h"
16
17#include "access/spgxlog.h"
18
19void
20spg_desc(StringInfo buf, XLogReaderState *record)
21{
22 char *rec = XLogRecGetData(record);
23 uint8 info = XLogRecGetInfo(record) & ~XLR_INFO_MASK;
24
25 switch (info)
26 {
27 case XLOG_SPGIST_ADD_LEAF:
28 {
29 spgxlogAddLeaf *xlrec = (spgxlogAddLeaf *) rec;
30
31 appendStringInfoString(buf, "add leaf to page");
32 appendStringInfo(buf, "; off %u; headoff %u; parentoff %u",
33 xlrec->offnumLeaf, xlrec->offnumHeadLeaf,
34 xlrec->offnumParent);
35 if (xlrec->newPage)
36 appendStringInfoString(buf, " (newpage)");
37 if (xlrec->storesNulls)
38 appendStringInfoString(buf, " (nulls)");
39 }
40 break;
41 case XLOG_SPGIST_MOVE_LEAFS:
42 appendStringInfo(buf, "%u leafs",
43 ((spgxlogMoveLeafs *) rec)->nMoves);
44 break;
45 case XLOG_SPGIST_ADD_NODE:
46 appendStringInfo(buf, "off %u",
47 ((spgxlogAddNode *) rec)->offnum);
48 break;
49 case XLOG_SPGIST_SPLIT_TUPLE:
50 appendStringInfo(buf, "prefix off: %u, postfix off: %u (same %d, new %d)",
51 ((spgxlogSplitTuple *) rec)->offnumPrefix,
52 ((spgxlogSplitTuple *) rec)->offnumPostfix,
53 ((spgxlogSplitTuple *) rec)->postfixBlkSame,
54 ((spgxlogSplitTuple *) rec)->newPage
55 );
56 break;
57 case XLOG_SPGIST_PICKSPLIT:
58 {
59 spgxlogPickSplit *xlrec = (spgxlogPickSplit *) rec;
60
61 appendStringInfo(buf, "ndel %u; nins %u",
62 xlrec->nDelete, xlrec->nInsert);
63 if (xlrec->innerIsParent)
64 appendStringInfoString(buf, " (innerIsParent)");
65 if (xlrec->isRootSplit)
66 appendStringInfoString(buf, " (isRootSplit)");
67 }
68 break;
69 case XLOG_SPGIST_VACUUM_LEAF:
70 /* no further information */
71 break;
72 case XLOG_SPGIST_VACUUM_ROOT:
73 /* no further information */
74 break;
75 case XLOG_SPGIST_VACUUM_REDIRECT:
76 appendStringInfo(buf, "newest XID %u",
77 ((spgxlogVacuumRedirect *) rec)->newestRedirectXid);
78 break;
79 }
80}
81
82const char *
83spg_identify(uint8 info)
84{
85 const char *id = NULL;
86
87 switch (info & ~XLR_INFO_MASK)
88 {
89 case XLOG_SPGIST_ADD_LEAF:
90 id = "ADD_LEAF";
91 break;
92 case XLOG_SPGIST_MOVE_LEAFS:
93 id = "MOVE_LEAFS";
94 break;
95 case XLOG_SPGIST_ADD_NODE:
96 id = "ADD_NODE";
97 break;
98 case XLOG_SPGIST_SPLIT_TUPLE:
99 id = "SPLIT_TUPLE";
100 break;
101 case XLOG_SPGIST_PICKSPLIT:
102 id = "PICKSPLIT";
103 break;
104 case XLOG_SPGIST_VACUUM_LEAF:
105 id = "VACUUM_LEAF";
106 break;
107 case XLOG_SPGIST_VACUUM_ROOT:
108 id = "VACUUM_ROOT";
109 break;
110 case XLOG_SPGIST_VACUUM_REDIRECT:
111 id = "VACUUM_REDIRECT";
112 break;
113 }
114
115 return id;
116}
117