gistdesc.c File Reference

#include "postgres.h"
#include "access/gistxlog.h"
#include "lib/stringinfo.h"
#include "storage/relfilelocator.h"

Include dependency graph for gistdesc.c:

Go to the source code of this file.

Functions
static void	out_gistxlogPageUpdate (StringInfo buf, gistxlogPageUpdate *xlrec)
static void	out_gistxlogPageReuse (StringInfo buf, gistxlogPageReuse *xlrec)
static void	out_gistxlogDelete (StringInfo buf, gistxlogDelete *xlrec)
static void	out_gistxlogPageSplit (StringInfo buf, gistxlogPageSplit *xlrec)
static void	out_gistxlogPageDelete (StringInfo buf, gistxlogPageDelete *xlrec)
void	gist_desc (StringInfo buf, XLogReaderState *record)
const char *	gist_identify (uint8 info)

Function Documentation

gist_desc()

void gist_desc	(	StringInfo	buf,
		XLogReaderState *	record
	)

Definition at line 60 of file gistdesc.c.

{
    char       *rec = XLogRecGetData(record);
    uint8       info = XLogRecGetInfo(record) & ~XLR_INFO_MASK;
 
    switch (info)
    {
        case XLOG_GIST_PAGE_UPDATE:
            out_gistxlogPageUpdate(buf, (gistxlogPageUpdate *) rec);
            break;
        case XLOG_GIST_PAGE_REUSE:
            out_gistxlogPageReuse(buf, (gistxlogPageReuse *) rec);
            break;
        case XLOG_GIST_DELETE:
            out_gistxlogDelete(buf, (gistxlogDelete *) rec);
            break;
        case XLOG_GIST_PAGE_SPLIT:
            out_gistxlogPageSplit(buf, (gistxlogPageSplit *) rec);
            break;
        case XLOG_GIST_PAGE_DELETE:
            out_gistxlogPageDelete(buf, (gistxlogPageDelete *) rec);
            break;
        case XLOG_GIST_ASSIGN_LSN:
            /* No details to write out */
            break;
    }
}

References buf, out_gistxlogDelete(), out_gistxlogPageDelete(), out_gistxlogPageReuse(), out_gistxlogPageSplit(), out_gistxlogPageUpdate(), XLOG_GIST_ASSIGN_LSN, XLOG_GIST_DELETE, XLOG_GIST_PAGE_DELETE, XLOG_GIST_PAGE_REUSE, XLOG_GIST_PAGE_SPLIT, XLOG_GIST_PAGE_UPDATE, XLogRecGetData, XLogRecGetInfo, and XLR_INFO_MASK.

gist_identify()

const char* gist_identify

(

uint8

info

)

Definition at line 89 of file gistdesc.c.

{
    const char *id = NULL;
 
    switch (info & ~XLR_INFO_MASK)
    {
        case XLOG_GIST_PAGE_UPDATE:
            id = "PAGE_UPDATE";
            break;
        case XLOG_GIST_DELETE:
            id = "DELETE";
            break;
        case XLOG_GIST_PAGE_REUSE:
            id = "PAGE_REUSE";
            break;
        case XLOG_GIST_PAGE_SPLIT:
            id = "PAGE_SPLIT";
            break;
        case XLOG_GIST_PAGE_DELETE:
            id = "PAGE_DELETE";
            break;
        case XLOG_GIST_ASSIGN_LSN:
            id = "ASSIGN_LSN";
            break;
    }
 
    return id;
}

References XLOG_GIST_ASSIGN_LSN, XLOG_GIST_DELETE, XLOG_GIST_PAGE_DELETE, XLOG_GIST_PAGE_REUSE, XLOG_GIST_PAGE_SPLIT, XLOG_GIST_PAGE_UPDATE, and XLR_INFO_MASK.

out_gistxlogDelete()

static void out_gistxlogDelete ( StringInfo  buf, gistxlogDelete *  xlrec  )

static

Definition at line 37 of file gistdesc.c.

{
    appendStringInfo(buf, "delete: snapshotConflictHorizon %u, nitems: %u",
                     xlrec->snapshotConflictHorizon, xlrec->ntodelete);
}

References appendStringInfo(), buf, gistxlogDelete::ntodelete, and gistxlogDelete::snapshotConflictHorizon.

Referenced by gist_desc().

out_gistxlogPageDelete()

static void out_gistxlogPageDelete ( StringInfo  buf, gistxlogPageDelete *  xlrec  )

static

Definition at line 51 of file gistdesc.c.

{
    appendStringInfo(buf, "deleteXid %u:%u; downlink %u",
                     EpochFromFullTransactionId(xlrec->deleteXid),
                     XidFromFullTransactionId(xlrec->deleteXid),
                     xlrec->downlinkOffset);
}

References appendStringInfo(), buf, gistxlogPageDelete::deleteXid, gistxlogPageDelete::downlinkOffset, EpochFromFullTransactionId, and XidFromFullTransactionId.

Referenced by gist_desc().

out_gistxlogPageReuse()

static void out_gistxlogPageReuse ( StringInfo  buf, gistxlogPageReuse *  xlrec  )

static

Definition at line 27 of file gistdesc.c.

{
    appendStringInfo(buf, "rel %u/%u/%u; blk %u; snapshotConflictHorizon %u:%u",
                     xlrec->locator.spcOid, xlrec->locator.dbOid,
                     xlrec->locator.relNumber, xlrec->block,
                     EpochFromFullTransactionId(xlrec->snapshotConflictHorizon),
                     XidFromFullTransactionId(xlrec->snapshotConflictHorizon));
}

References appendStringInfo(), gistxlogPageReuse::block, buf, RelFileLocator::dbOid, EpochFromFullTransactionId, gistxlogPageReuse::locator, RelFileLocator::relNumber, gistxlogPageReuse::snapshotConflictHorizon, RelFileLocator::spcOid, and XidFromFullTransactionId.

Referenced by gist_desc().

out_gistxlogPageSplit()

static void out_gistxlogPageSplit ( StringInfo  buf, gistxlogPageSplit *  xlrec  )

static

Definition at line 44 of file gistdesc.c.

{
    appendStringInfo(buf, "page_split: splits to %d pages",
                     xlrec->npage);
}

References appendStringInfo(), buf, and gistxlogPageSplit::npage.

Referenced by gist_desc().

out_gistxlogPageUpdate()

static void out_gistxlogPageUpdate ( StringInfo  buf, gistxlogPageUpdate *  xlrec  )

static

Definition at line 22 of file gistdesc.c.

{
}

Referenced by gist_desc().