spgdesc.c

Go to the documentation of this file.

/*-------------------------------------------------------------------------
 *
 * spgdesc.c
 *    rmgr descriptor routines for access/spgist/spgxlog.c
 *
 * Portions Copyright (c) 1996-2026, PostgreSQL Global Development Group
 * Portions Copyright (c) 1994, Regents of the University of California
 *
 *
 * IDENTIFICATION
 *    src/backend/access/rmgrdesc/spgdesc.c
 *
 *-------------------------------------------------------------------------
 */
#include "postgres.h"
 
#include "access/spgxlog.h"
 
void
spg_desc(StringInfo buf, XLogReaderState *record)
{
    char       *rec = XLogRecGetData(record);
    uint8       info = XLogRecGetInfo(record) & ~XLR_INFO_MASK;
 
    switch (info)
    {
        case XLOG_SPGIST_ADD_LEAF:
            {
                spgxlogAddLeaf *xlrec = (spgxlogAddLeaf *) rec;
 
                appendStringInfo(buf, "off: %u, headoff: %u, parentoff: %u, nodeI: %u",
                                 xlrec->offnumLeaf, xlrec->offnumHeadLeaf,
                                 xlrec->offnumParent, xlrec->nodeI);
                if (xlrec->newPage)
                    appendStringInfoString(buf, " (newpage)");
                if (xlrec->storesNulls)
                    appendStringInfoString(buf, " (nulls)");
            }
            break;
        case XLOG_SPGIST_MOVE_LEAFS:
            {
                spgxlogMoveLeafs *xlrec = (spgxlogMoveLeafs *) rec;
 
                appendStringInfo(buf, "nmoves: %u, parentoff: %u, nodeI: %u",
                                 xlrec->nMoves,
                                 xlrec->offnumParent, xlrec->nodeI);
                if (xlrec->newPage)
                    appendStringInfoString(buf, " (newpage)");
                if (xlrec->replaceDead)
                    appendStringInfoString(buf, " (replacedead)");
                if (xlrec->storesNulls)
                    appendStringInfoString(buf, " (nulls)");
            }
            break;
        case XLOG_SPGIST_ADD_NODE:
            {
                spgxlogAddNode *xlrec = (spgxlogAddNode *) rec;
 
                appendStringInfo(buf, "off: %u, newoff: %u, parentBlk: %d, "
                                 "parentoff: %u, nodeI: %u",
                                 xlrec->offnum,
                                 xlrec->offnumNew,
                                 xlrec->parentBlk,
                                 xlrec->offnumParent,
                                 xlrec->nodeI);
                if (xlrec->newPage)
                    appendStringInfoString(buf, " (newpage)");
            }
            break;
        case XLOG_SPGIST_SPLIT_TUPLE:
            {
                spgxlogSplitTuple *xlrec = (spgxlogSplitTuple *) rec;
 
                appendStringInfo(buf, "prefixoff: %u, postfixoff: %u",
                                 xlrec->offnumPrefix,
                                 xlrec->offnumPostfix);
                if (xlrec->newPage)
                    appendStringInfoString(buf, " (newpage)");
                if (xlrec->postfixBlkSame)
                    appendStringInfoString(buf, " (same)");
            }
            break;
        case XLOG_SPGIST_PICKSPLIT:
            {
                spgxlogPickSplit *xlrec = (spgxlogPickSplit *) rec;
 
                appendStringInfo(buf, "ndelete: %u, ninsert: %u, inneroff: %u, "
                                 "parentoff: %u, nodeI: %u",
                                 xlrec->nDelete, xlrec->nInsert,
                                 xlrec->offnumInner,
                                 xlrec->offnumParent, xlrec->nodeI);
                if (xlrec->innerIsParent)
                    appendStringInfoString(buf, " (innerIsParent)");
                if (xlrec->storesNulls)
                    appendStringInfoString(buf, " (nulls)");
                if (xlrec->isRootSplit)
                    appendStringInfoString(buf, " (isRootSplit)");
            }
            break;
        case XLOG_SPGIST_VACUUM_LEAF:
            {
                spgxlogVacuumLeaf *xlrec = (spgxlogVacuumLeaf *) rec;
 
                appendStringInfo(buf, "ndead: %u, nplaceholder: %u, nmove: %u, nchain: %u",
                                 xlrec->nDead, xlrec->nPlaceholder,
                                 xlrec->nMove, xlrec->nChain);
            }
            break;
        case XLOG_SPGIST_VACUUM_ROOT:
            {
                spgxlogVacuumRoot *xlrec = (spgxlogVacuumRoot *) rec;
 
                appendStringInfo(buf, "ndelete: %u",
                                 xlrec->nDelete);
            }
            break;
        case XLOG_SPGIST_VACUUM_REDIRECT:
            {
                spgxlogVacuumRedirect *xlrec = (spgxlogVacuumRedirect *) rec;
 
                appendStringInfo(buf, "ntoplaceholder: %u, firstplaceholder: %u, snapshotConflictHorizon: %u, isCatalogRel: %c",
                                 xlrec->nToPlaceholder,
                                 xlrec->firstPlaceholder,
                                 xlrec->snapshotConflictHorizon,
                                 xlrec->isCatalogRel ? 'T' : 'F');
            }
            break;
    }
}
 
const char *
spg_identify(uint8 info)
{
    const char *id = NULL;
 
    switch (info & ~XLR_INFO_MASK)
    {
        case XLOG_SPGIST_ADD_LEAF:
            id = "ADD_LEAF";
            break;
        case XLOG_SPGIST_MOVE_LEAFS:
            id = "MOVE_LEAFS";
            break;
        case XLOG_SPGIST_ADD_NODE:
            id = "ADD_NODE";
            break;
        case XLOG_SPGIST_SPLIT_TUPLE:
            id = "SPLIT_TUPLE";
            break;
        case XLOG_SPGIST_PICKSPLIT:
            id = "PICKSPLIT";
            break;
        case XLOG_SPGIST_VACUUM_LEAF:
            id = "VACUUM_LEAF";
            break;
        case XLOG_SPGIST_VACUUM_ROOT:
            id = "VACUUM_ROOT";
            break;
        case XLOG_SPGIST_VACUUM_REDIRECT:
            id = "VACUUM_REDIRECT";
            break;
    }
 
    return id;
}