117 lines
2.9 KiB
C
117 lines
2.9 KiB
C
/*-------------------------------------------------------------------------
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*
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* spgdesc.c
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* rmgr descriptor routines for access/spgist/spgxlog.c
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*
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* Portions Copyright (c) 1996-2021, PostgreSQL Global Development Group
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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*
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* IDENTIFICATION
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* src/backend/access/rmgrdesc/spgdesc.c
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*
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*-------------------------------------------------------------------------
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*/
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#include "postgres.h"
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#include "access/spgxlog.h"
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void
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spg_desc(StringInfo buf, XLogReaderState *record)
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{
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char *rec = XLogRecGetData(record);
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uint8 info = XLogRecGetInfo(record) & ~XLR_INFO_MASK;
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switch (info)
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{
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case XLOG_SPGIST_ADD_LEAF:
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{
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spgxlogAddLeaf *xlrec = (spgxlogAddLeaf *) rec;
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appendStringInfoString(buf, "add leaf to page");
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appendStringInfo(buf, "; off %u; headoff %u; parentoff %u",
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xlrec->offnumLeaf, xlrec->offnumHeadLeaf,
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xlrec->offnumParent);
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if (xlrec->newPage)
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appendStringInfoString(buf, " (newpage)");
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if (xlrec->storesNulls)
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appendStringInfoString(buf, " (nulls)");
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}
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break;
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case XLOG_SPGIST_MOVE_LEAFS:
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appendStringInfo(buf, "%u leafs",
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((spgxlogMoveLeafs *) rec)->nMoves);
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break;
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case XLOG_SPGIST_ADD_NODE:
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appendStringInfo(buf, "off %u",
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((spgxlogAddNode *) rec)->offnum);
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break;
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case XLOG_SPGIST_SPLIT_TUPLE:
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appendStringInfo(buf, "prefix off: %u, postfix off: %u (same %d, new %d)",
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((spgxlogSplitTuple *) rec)->offnumPrefix,
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((spgxlogSplitTuple *) rec)->offnumPostfix,
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((spgxlogSplitTuple *) rec)->postfixBlkSame,
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((spgxlogSplitTuple *) rec)->newPage
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);
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break;
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case XLOG_SPGIST_PICKSPLIT:
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{
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spgxlogPickSplit *xlrec = (spgxlogPickSplit *) rec;
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appendStringInfo(buf, "ndel %u; nins %u",
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xlrec->nDelete, xlrec->nInsert);
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if (xlrec->innerIsParent)
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appendStringInfoString(buf, " (innerIsParent)");
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if (xlrec->isRootSplit)
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appendStringInfoString(buf, " (isRootSplit)");
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}
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break;
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case XLOG_SPGIST_VACUUM_LEAF:
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/* no further information */
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break;
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case XLOG_SPGIST_VACUUM_ROOT:
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/* no further information */
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break;
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case XLOG_SPGIST_VACUUM_REDIRECT:
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appendStringInfo(buf, "newest XID %u",
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((spgxlogVacuumRedirect *) rec)->newestRedirectXid);
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break;
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}
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}
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const char *
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spg_identify(uint8 info)
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{
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const char *id = NULL;
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switch (info & ~XLR_INFO_MASK)
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{
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case XLOG_SPGIST_ADD_LEAF:
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id = "ADD_LEAF";
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break;
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case XLOG_SPGIST_MOVE_LEAFS:
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id = "MOVE_LEAFS";
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break;
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case XLOG_SPGIST_ADD_NODE:
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id = "ADD_NODE";
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break;
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case XLOG_SPGIST_SPLIT_TUPLE:
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id = "SPLIT_TUPLE";
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break;
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case XLOG_SPGIST_PICKSPLIT:
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id = "PICKSPLIT";
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break;
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case XLOG_SPGIST_VACUUM_LEAF:
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id = "VACUUM_LEAF";
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break;
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case XLOG_SPGIST_VACUUM_ROOT:
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id = "VACUUM_ROOT";
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break;
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case XLOG_SPGIST_VACUUM_REDIRECT:
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id = "VACUUM_REDIRECT";
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break;
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}
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return id;
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}
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