nbtdesc.c File Reference

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

Include dependency graph for nbtdesc.c:

Go to the source code of this file.

Functions
void	btree_desc (StringInfo buf, XLogReaderState *record)
const char *	btree_identify (uint8 info)

Function Documentation

void btree_desc	(	StringInfo	buf,
		XLogReaderState *	record
	)

Definition at line 20 of file nbtdesc.c.

References appendStringInfo(), xl_btree_unlink_page::btpo_xact, RelFileNode::dbNode, xl_btree_split::firstright, xl_btree_vacuum::lastBlockVacuumed, xl_btree_reuse_page::latestRemovedXid, xl_btree_mark_page_halfdead::leafblk, xl_btree_unlink_page::leafleftsib, xl_btree_unlink_page::leafrightsib, xl_btree_mark_page_halfdead::leftblk, xl_btree_unlink_page::leftsib, xl_btree_split::level, xl_btree_newroot::level, xl_btree_delete::nitems, xl_btree_reuse_page::node, xl_btree_insert::offnum, RelFileNode::relNode, xl_btree_mark_page_halfdead::rightblk, xl_btree_unlink_page::rightsib, RelFileNode::spcNode, xl_btree_mark_page_halfdead::topparent, xl_btree_unlink_page::topparent, XLOG_BTREE_DELETE, XLOG_BTREE_INSERT_LEAF, XLOG_BTREE_INSERT_META, XLOG_BTREE_INSERT_UPPER, XLOG_BTREE_MARK_PAGE_HALFDEAD, XLOG_BTREE_NEWROOT, XLOG_BTREE_REUSE_PAGE, XLOG_BTREE_SPLIT_L, XLOG_BTREE_SPLIT_L_ROOT, XLOG_BTREE_SPLIT_R, XLOG_BTREE_SPLIT_R_ROOT, XLOG_BTREE_UNLINK_PAGE, XLOG_BTREE_UNLINK_PAGE_META, XLOG_BTREE_VACUUM, XLogRecGetData, XLogRecGetInfo, and XLR_INFO_MASK.

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

    switch (info)
    {
        case XLOG_BTREE_INSERT_LEAF:
        case XLOG_BTREE_INSERT_UPPER:
        case XLOG_BTREE_INSERT_META:
            {
                xl_btree_insert *xlrec = (xl_btree_insert *) rec;

                appendStringInfo(buf, "off %u", xlrec->offnum);
                break;
            }
        case XLOG_BTREE_SPLIT_L:
        case XLOG_BTREE_SPLIT_R:
        case XLOG_BTREE_SPLIT_L_ROOT:
        case XLOG_BTREE_SPLIT_R_ROOT:
            {
                xl_btree_split *xlrec = (xl_btree_split *) rec;

                appendStringInfo(buf, "level %u, firstright %d",
                                 xlrec->level, xlrec->firstright);
                break;
            }
        case XLOG_BTREE_VACUUM:
            {
                xl_btree_vacuum *xlrec = (xl_btree_vacuum *) rec;

                appendStringInfo(buf, "lastBlockVacuumed %u",
                                 xlrec->lastBlockVacuumed);
                break;
            }
        case XLOG_BTREE_DELETE:
            {
                xl_btree_delete *xlrec = (xl_btree_delete *) rec;

                appendStringInfo(buf, "%d items", xlrec->nitems);
                break;
            }
        case XLOG_BTREE_MARK_PAGE_HALFDEAD:
            {
                xl_btree_mark_page_halfdead *xlrec = (xl_btree_mark_page_halfdead *) rec;

                appendStringInfo(buf, "topparent %u; leaf %u; left %u; right %u",
                                 xlrec->topparent, xlrec->leafblk, xlrec->leftblk, xlrec->rightblk);
                break;
            }
        case XLOG_BTREE_UNLINK_PAGE_META:
        case XLOG_BTREE_UNLINK_PAGE:
            {
                xl_btree_unlink_page *xlrec = (xl_btree_unlink_page *) rec;

                appendStringInfo(buf, "left %u; right %u; btpo_xact %u; ",
                                 xlrec->leftsib, xlrec->rightsib,
                                 xlrec->btpo_xact);
                appendStringInfo(buf, "leafleft %u; leafright %u; topparent %u",
                                 xlrec->leafleftsib, xlrec->leafrightsib,
                                 xlrec->topparent);
                break;
            }
        case XLOG_BTREE_NEWROOT:
            {
                xl_btree_newroot *xlrec = (xl_btree_newroot *) rec;

                appendStringInfo(buf, "lev %u", xlrec->level);
                break;
            }
        case XLOG_BTREE_REUSE_PAGE:
            {
                xl_btree_reuse_page *xlrec = (xl_btree_reuse_page *) rec;

                appendStringInfo(buf, "rel %u/%u/%u; latestRemovedXid %u",
                                 xlrec->node.spcNode, xlrec->node.dbNode,
                                 xlrec->node.relNode, xlrec->latestRemovedXid);
                break;
            }
    }
}

const char* btree_identify

(

uint8

info

)

Definition at line 103 of file nbtdesc.c.

References NULL, XLOG_BTREE_DELETE, XLOG_BTREE_INSERT_LEAF, XLOG_BTREE_INSERT_META, XLOG_BTREE_INSERT_UPPER, XLOG_BTREE_MARK_PAGE_HALFDEAD, XLOG_BTREE_NEWROOT, XLOG_BTREE_REUSE_PAGE, XLOG_BTREE_SPLIT_L, XLOG_BTREE_SPLIT_L_ROOT, XLOG_BTREE_SPLIT_R, XLOG_BTREE_SPLIT_R_ROOT, XLOG_BTREE_UNLINK_PAGE, XLOG_BTREE_UNLINK_PAGE_META, XLOG_BTREE_VACUUM, and XLR_INFO_MASK.

{
    const char *id = NULL;

    switch (info & ~XLR_INFO_MASK)
    {
        case XLOG_BTREE_INSERT_LEAF:
            id = "INSERT_LEAF";
            break;
        case XLOG_BTREE_INSERT_UPPER:
            id = "INSERT_UPPER";
            break;
        case XLOG_BTREE_INSERT_META:
            id = "INSERT_META";
            break;
        case XLOG_BTREE_SPLIT_L:
            id = "SPLIT_L";
            break;
        case XLOG_BTREE_SPLIT_R:
            id = "SPLIT_R";
            break;
        case XLOG_BTREE_SPLIT_L_ROOT:
            id = "SPLIT_L_ROOT";
            break;
        case XLOG_BTREE_SPLIT_R_ROOT:
            id = "SPLIT_R_ROOT";
            break;
        case XLOG_BTREE_VACUUM:
            id = "VACUUM";
            break;
        case XLOG_BTREE_DELETE:
            id = "DELETE";
            break;
        case XLOG_BTREE_MARK_PAGE_HALFDEAD:
            id = "MARK_PAGE_HALFDEAD";
            break;
        case XLOG_BTREE_UNLINK_PAGE:
            id = "UNLINK_PAGE";
            break;
        case XLOG_BTREE_UNLINK_PAGE_META:
            id = "UNLINK_PAGE_META";
            break;
        case XLOG_BTREE_NEWROOT:
            id = "NEWROOT";
            break;
        case XLOG_BTREE_REUSE_PAGE:
            id = "REUSE_PAGE";
            break;
    }

    return id;
}