brindesc.c File Reference

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

Include dependency graph for brindesc.c:

Go to the source code of this file.

Functions
void	brin_desc (StringInfo buf, XLogReaderState *record)
const char *	brin_identify (uint8 info)

Function Documentation

brin_desc()

void brin_desc	(	StringInfo	buf,
		XLogReaderState *	record
	)

Definition at line 20 of file brindesc.c.

{
    char       *rec = XLogRecGetData(record);
    uint8       info = XLogRecGetInfo(record) & ~XLR_INFO_MASK;
 
    info &= XLOG_BRIN_OPMASK;
    if (info == XLOG_BRIN_CREATE_INDEX)
    {
        xl_brin_createidx *xlrec = (xl_brin_createidx *) rec;
 
        appendStringInfo(buf, "v%d pagesPerRange %u",
                         xlrec->version, xlrec->pagesPerRange);
    }
    else if (info == XLOG_BRIN_INSERT)
    {
        xl_brin_insert *xlrec = (xl_brin_insert *) rec;
 
        appendStringInfo(buf, "heapBlk %u pagesPerRange %u offnum %u",
                         xlrec->heapBlk,
                         xlrec->pagesPerRange,
                         xlrec->offnum);
    }
    else if (info == XLOG_BRIN_UPDATE)
    {
        xl_brin_update *xlrec = (xl_brin_update *) rec;
 
        appendStringInfo(buf, "heapBlk %u pagesPerRange %u old offnum %u, new offnum %u",
                         xlrec->insert.heapBlk,
                         xlrec->insert.pagesPerRange,
                         xlrec->oldOffnum,
                         xlrec->insert.offnum);
    }
    else if (info == XLOG_BRIN_SAMEPAGE_UPDATE)
    {
        xl_brin_samepage_update *xlrec = (xl_brin_samepage_update *) rec;
 
        appendStringInfo(buf, "offnum %u", xlrec->offnum);
    }
    else if (info == XLOG_BRIN_REVMAP_EXTEND)
    {
        xl_brin_revmap_extend *xlrec = (xl_brin_revmap_extend *) rec;
 
        appendStringInfo(buf, "targetBlk %u", xlrec->targetBlk);
    }
    else if (info == XLOG_BRIN_DESUMMARIZE)
    {
        xl_brin_desummarize *xlrec = (xl_brin_desummarize *) rec;
 
        appendStringInfo(buf, "pagesPerRange %u, heapBlk %u, page offset %u",
                         xlrec->pagesPerRange, xlrec->heapBlk, xlrec->regOffset);
    }
}

References appendStringInfo(), buf, xl_brin_insert::heapBlk, xl_brin_desummarize::heapBlk, xl_brin_update::insert, xl_brin_insert::offnum, xl_brin_samepage_update::offnum, xl_brin_update::oldOffnum, xl_brin_createidx::pagesPerRange, xl_brin_insert::pagesPerRange, xl_brin_desummarize::pagesPerRange, xl_brin_desummarize::regOffset, xl_brin_revmap_extend::targetBlk, xl_brin_createidx::version, XLOG_BRIN_CREATE_INDEX, XLOG_BRIN_DESUMMARIZE, XLOG_BRIN_INSERT, XLOG_BRIN_OPMASK, XLOG_BRIN_REVMAP_EXTEND, XLOG_BRIN_SAMEPAGE_UPDATE, XLOG_BRIN_UPDATE, XLogRecGetData, XLogRecGetInfo, and XLR_INFO_MASK.

brin_identify()

const char* brin_identify

(

uint8

info

)

Definition at line 74 of file brindesc.c.

{
    const char *id = NULL;
 
    switch (info & ~XLR_INFO_MASK)
    {
        case XLOG_BRIN_CREATE_INDEX:
            id = "CREATE_INDEX";
            break;
        case XLOG_BRIN_INSERT:
            id = "INSERT";
            break;
        case XLOG_BRIN_INSERT | XLOG_BRIN_INIT_PAGE:
            id = "INSERT+INIT";
            break;
        case XLOG_BRIN_UPDATE:
            id = "UPDATE";
            break;
        case XLOG_BRIN_UPDATE | XLOG_BRIN_INIT_PAGE:
            id = "UPDATE+INIT";
            break;
        case XLOG_BRIN_SAMEPAGE_UPDATE:
            id = "SAMEPAGE_UPDATE";
            break;
        case XLOG_BRIN_REVMAP_EXTEND:
            id = "REVMAP_EXTEND";
            break;
        case XLOG_BRIN_DESUMMARIZE:
            id = "DESUMMARIZE";
            break;
    }
 
    return id;
}

References XLOG_BRIN_CREATE_INDEX, XLOG_BRIN_DESUMMARIZE, XLOG_BRIN_INIT_PAGE, XLOG_BRIN_INSERT, XLOG_BRIN_REVMAP_EXTEND, XLOG_BRIN_SAMEPAGE_UPDATE, XLOG_BRIN_UPDATE, and XLR_INFO_MASK.