8000 Improve WAL record descriptions for SP-GiST records. · postgrespro/postgres@783be78 · GitHub
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Improve WAL record descriptions for SP-GiST records.
While tracking down the bug fixed in the preceding commit, I got quite annoyed by the low quality of spg_desc's output. Add missing fields, try to make the formatting consistent.
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-19
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+67
-19
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‎src/backend/access/rmgrdesc/spgdesc.c

Lines changed: 67 additions & 19 deletions
Original file line numberDiff line numberDiff line change
@@ -28,53 +28,101 @@ spg_desc(StringInfo buf, XLogReaderState *record)
2828
{
2929
spgxlogAddLeaf *xlrec = (spgxlogAddLeaf *) rec;
3030

31-
appendStringInfoString(buf, "add leaf to page");
32-
appendStringInfo(buf, "; off %u; headoff %u; parentoff %u",
31+
appendStringInfo(buf, "off: %u, headoff: %u, parentoff: %u, nodeI: %u",
3332
xlrec->offnumLeaf, xlrec->offnumHeadLeaf,
34-
xlrec->offnumParent);
33+
xlrec->offnumParent, xlrec->nodeI);
3534
if (xlrec->newPage)
3635
appendStringInfoString(buf, " (newpage)");
3736
if (xlrec->storesNulls)
3837
appendStringInfoString(buf, " (nulls)");
3938
}
4039
break;
4140
case XLOG_SPGIST_MOVE_LEAFS:
42-
appendStringInfo(buf, "%u leafs",
43-
((spgxlogMoveLeafs *) rec)->nMoves);
41+
{
42+
spgxlogMoveLeafs *xlrec = (spgxlogMoveLeafs *) rec;
43+
44+
appendStringInfo(buf, "nmoves: %u, parentoff: %u, nodeI: %u",
45+
xlrec->nMoves,
46+
xlrec->offnumParent, xlrec->nodeI);
47+
if (xlrec->newPage)
48+
appendStringInfoString(buf, " (newpage)");
49+
if (xlrec->replaceDead)
50+
appendStringInfoString(buf, " (replacedead)");
51+
if (xlrec->storesNulls)
52+
appendStringInfoString(buf, " (nulls)");
53+
}
4454
break;
4555
case XLOG_SPGIST_ADD_NODE:
46-
appendStringInfo(buf, "off %u",
47-
((spgxlogAddNode *) rec)->offnum);
56+
{
57+
spgxlogAddNode *xlrec = (spgxlogAddNode *) rec;
58+
59+
appendStringInfo(buf, "off: %u, newoff: %u, parentBlk: %d, "
60+
"parentoff: %u, nodeI: %u",
61+
xlrec->offnum,
62+
xlrec->offnumNew,
63+
xlrec->parentBlk,
64+
xlrec->offnumParent,
65+
xlrec->nodeI);
66+
if (xlrec->newPage)
67+
appendStringInfoString(buf, " (newpage)");
68+
}
4869
break;
4970
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-
);
71+
{
72+
spgxlogSplitTuple *xlrec = (spgxlogSplitTuple *) rec;
73+
74+
appendStringInfo(buf, "prefixoff: %u, postfixoff: %u",
75+
xlrec->offnumPrefix,
76+
xlrec->offnumPostfix);
77+
if (xlrec->newPage)
78+
appendStringInfoString(buf, " (newpage)");
79+
if (xlrec->postfixBlkSame)
80+
appendStringInfoString(buf, " (same)");
81+
}
5682
break;
5783
case XLOG_SPGIST_PICKSPLIT:
5884
{
5985
spgxlogPickSplit *xlrec = (spgxlogPickSplit *) rec;
6086

61-
appendStringInfo(buf, "ndel %u; nins %u",
62-
xlrec->nDelete, xlrec->nInsert);
87+
appendStringInfo(buf, "ndelete: %u, ninsert: %u, inneroff: %u, "
88+
"parentoff: %u, nodeI: %u",
89+
xlrec->nDelete, xlrec->nInsert,
90+
xlrec->offnumInner,
91+
xlrec->offnumParent, xlrec->nodeI);
6392
if (xlrec->innerIsParent)
6493
appendStringInfoString(buf, " (innerIsParent)");
94+
if (xlrec->storesNulls)
95+
appendStringInfoString(buf, " (nulls)");
6596
if (xlrec->isRootSplit)
6697
appendStringInfoString(buf, " (isRootSplit)");
6798
}
6899
break;
69100
case XLOG_SPGIST_VACUUM_LEAF:
70-
/* no further information */
101+
{
102+
spgxlogVacuumLeaf *xlrec = (spgxlogVacuumLeaf *) rec;
103+
104+
appendStringInfo(buf, "ndead: %u, nplaceholder: %u, nmove: %u, nchain: %u",
105+
xlrec->nDead, xlrec->nPlaceholder,
106+
xlrec->nMove, xlrec->nChain);
107+
}
71108
break;
72109
case XLOG_SPGIST_VACUUM_ROOT:
73-
/* no further information */
110+
{
111+
spgxlogVacuumRoot *xlrec = (spgxlogVacuumRoot *) rec;
112+
113+
appendStringInfo(buf, "ndelete: %u",
114+
xlrec->nDelete);
115+
}
74116
break;
75117
case XLOG_SPGIST_VACUUM_REDIRECT:
76-
appendStringInfo(buf, "newest XID %u",
77-
((spgxlogVacuumRedirect *) rec)->newestRedirectXid);
118+
{
119+
spgxlogVacuumRedirect *xlrec = (spgxlogVacuumRedirect *) rec;
120+
121+
appendStringInfo(buf, "ntoplaceholder: %u, firstplaceholder: %u, newestredirectxid: %u",
122+
xlrec->nToPlaceholder,
123+
xlrec->firstPlaceholder,
124+
xlrec->newestRedirectXid);
125+
}
78126
break;
79127
}
80128
}

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