Beispiel #1
0
static void
ginRedoInsertData(Buffer buffer, bool isLeaf, BlockNumber rightblkno, void *rdata)
{
	Page		page = BufferGetPage(buffer);

	if (isLeaf)
	{
		ginxlogRecompressDataLeaf *data = (ginxlogRecompressDataLeaf *) rdata;

		Assert(GinPageIsLeaf(page));

		ginRedoRecompress(page, data);
	}
	else
	{
		ginxlogInsertDataInternal *data = (ginxlogInsertDataInternal *) rdata;
		PostingItem *oldpitem;

		Assert(!GinPageIsLeaf(page));

		/* update link to right page after split */
		oldpitem = GinDataPageGetPostingItem(page, data->offset);
		PostingItemSetBlockNumber(oldpitem, rightblkno);

		GinDataPageAddPostingItem(page, &data->newitem, data->offset);
	}
}
Beispiel #2
0
static void
ginRedoVacuumDataLeafPage(XLogRecPtr lsn, XLogRecord *record)
{
    ginxlogVacuumDataLeafPage *xlrec = (ginxlogVacuumDataLeafPage *) XLogRecGetData(record);
    Buffer		buffer;
    Page		page;

    /* If we have a full-page image, restore it and we're done */
    if (record->xl_info & XLR_BKP_BLOCK(0))
    {
        (void) RestoreBackupBlock(lsn, record, 0, false, false);
        return;
    }

    buffer = XLogReadBuffer(xlrec->node, xlrec->blkno, false);
    if (!BufferIsValid(buffer))
        return;
    page = (Page) BufferGetPage(buffer);

    Assert(GinPageIsLeaf(page));
    Assert(GinPageIsData(page));

    if (lsn > PageGetLSN(page))
    {
        ginRedoRecompress(page, &xlrec->data);
        PageSetLSN(page, lsn);
        MarkBufferDirty(buffer);
    }

    UnlockReleaseBuffer(buffer);
}
Beispiel #3
0
static void
ginRedoVacuumDataLeafPage(XLogReaderState *record)
{
	XLogRecPtr	lsn = record->EndRecPtr;
	Buffer		buffer;

	if (XLogReadBufferForRedo(record, 0, &buffer) == BLK_NEEDS_REDO)
	{
		Page		page = BufferGetPage(buffer);
		Size		len;
		ginxlogVacuumDataLeafPage *xlrec;

		xlrec = (ginxlogVacuumDataLeafPage *) XLogRecGetBlockData(record, 0, &len);

		Assert(GinPageIsLeaf(page));
		Assert(GinPageIsData(page));

		ginRedoRecompress(page, &xlrec->data);
		PageSetLSN(page, lsn);
		MarkBufferDirty(buffer);
	}
	if (BufferIsValid(buffer))
		UnlockReleaseBuffer(buffer);
}