spgdesc.c File Reference

#include "postgres.h"
#include "access/spgxlog.h"

Include dependency graph for spgdesc.c:

Go to the source code of this file.

Functions
void	spg_desc (StringInfo buf, XLogReaderState *record)
const char *	spg_identify (uint8 info)

Function Documentation

spg_desc()

void spg_desc	(	StringInfo	buf,
		XLogReaderState *	record
	)

Definition at line 20 of file spgdesc.c.

References appendStringInfo(), appendStringInfoString(), spgxlogPickSplit::innerIsParent, spgxlogPickSplit::isRootSplit, spgxlogPickSplit::nDelete, spgxlogAddLeaf::newPage, spgxlogPickSplit::nInsert, spgxlogAddLeaf::offnumHeadLeaf, spgxlogAddLeaf::offnumLeaf, spgxlogAddLeaf::offnumParent, spgxlogAddLeaf::storesNulls, XLOG_SPGIST_ADD_LEAF, XLOG_SPGIST_ADD_NODE, XLOG_SPGIST_MOVE_LEAFS, XLOG_SPGIST_PICKSPLIT, XLOG_SPGIST_SPLIT_TUPLE, XLOG_SPGIST_VACUUM_LEAF, XLOG_SPGIST_VACUUM_REDIRECT, XLOG_SPGIST_VACUUM_ROOT, XLogRecGetData, XLogRecGetInfo, and XLR_INFO_MASK.

{
    char       *rec = XLogRecGetData(record);
    uint8       info = XLogRecGetInfo(record) & ~XLR_INFO_MASK;

    switch (info)
    {
        case XLOG_SPGIST_ADD_LEAF:
            {
                spgxlogAddLeaf *xlrec = (spgxlogAddLeaf *) rec;

                appendStringInfoString(buf, "add leaf to page");
                appendStringInfo(buf, "; off %u; headoff %u; parentoff %u",
                                 xlrec->offnumLeaf, xlrec->offnumHeadLeaf,
                                 xlrec->offnumParent);
                if (xlrec->newPage)
                    appendStringInfoString(buf, " (newpage)");
                if (xlrec->storesNulls)
                    appendStringInfoString(buf, " (nulls)");
            }
            break;
        case XLOG_SPGIST_MOVE_LEAFS:
            appendStringInfo(buf, "%u leafs",
                             ((spgxlogMoveLeafs *) rec)->nMoves);
            break;
        case XLOG_SPGIST_ADD_NODE:
            appendStringInfo(buf, "off %u",
                             ((spgxlogAddNode *) rec)->offnum);
            break;
        case XLOG_SPGIST_SPLIT_TUPLE:
            appendStringInfo(buf, "prefix off: %u, postfix off: %u (same %d, new %d)",
                             ((spgxlogSplitTuple *) rec)->offnumPrefix,
                             ((spgxlogSplitTuple *) rec)->offnumPostfix,
                             ((spgxlogSplitTuple *) rec)->postfixBlkSame,
                             ((spgxlogSplitTuple *) rec)->newPage
                );
            break;
        case XLOG_SPGIST_PICKSPLIT:
            {
                spgxlogPickSplit *xlrec = (spgxlogPickSplit *) rec;

                appendStringInfo(buf, "ndel %u; nins %u",
                                 xlrec->nDelete, xlrec->nInsert);
                if (xlrec->innerIsParent)
                    appendStringInfoString(buf, " (innerIsParent)");
                if (xlrec->isRootSplit)
                    appendStringInfoString(buf, " (isRootSplit)");
            }
            break;
        case XLOG_SPGIST_VACUUM_LEAF:
            /* no further information */
            break;
        case XLOG_SPGIST_VACUUM_ROOT:
            /* no further information */
            break;
        case XLOG_SPGIST_VACUUM_REDIRECT:
            appendStringInfo(buf, "newest XID %u",
                             ((spgxlogVacuumRedirect *) rec)->newestRedirectXid);
            break;
    }
}

spg_identify()

const char* spg_identify

(

uint8

info

)

Definition at line 83 of file spgdesc.c.

References XLOG_SPGIST_ADD_LEAF, XLOG_SPGIST_ADD_NODE, XLOG_SPGIST_MOVE_LEAFS, XLOG_SPGIST_PICKSPLIT, XLOG_SPGIST_SPLIT_TUPLE, XLOG_SPGIST_VACUUM_LEAF, XLOG_SPGIST_VACUUM_REDIRECT, XLOG_SPGIST_VACUUM_ROOT, and XLR_INFO_MASK.

{
    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;
}