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synced 2025-07-05 07:21:24 +03:00
Revamp the WAL record format.
Each WAL record now carries information about the modified relation and block(s) in a standardized format. That makes it easier to write tools that need that information, like pg_rewind, prefetching the blocks to speed up recovery, etc. There's a whole new API for building WAL records, replacing the XLogRecData chains used previously. The new API consists of XLogRegister* functions, which are called for each buffer and chunk of data that is added to the record. The new API also gives more control over when a full-page image is written, by passing flags to the XLogRegisterBuffer function. This also simplifies the XLogReadBufferForRedo() calls. The function can dig the relation and block number from the WAL record, so they no longer need to be passed as arguments. For the convenience of redo routines, XLogReader now disects each WAL record after reading it, copying the main data part and the per-block data into MAXALIGNed buffers. The data chunks are not aligned within the WAL record, but the redo routines can assume that the pointers returned by XLogRecGet* functions are. Redo routines are now passed the XLogReaderState, which contains the record in the already-disected format, instead of the plain XLogRecord. The new record format also makes the fixed size XLogRecord header smaller, by removing the xl_len field. The length of the "main data" portion is now stored at the end of the WAL record, and there's a separate header after XLogRecord for it. The alignment padding at the end of XLogRecord is also removed. This compansates for the fact that the new format would otherwise be more bulky than the old format. Reviewed by Andres Freund, Amit Kapila, Michael Paquier, Alvaro Herrera, Fujii Masao.
This commit is contained in:
Heikki Linnakangas
@ -20,18 +20,15 @@
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static MemoryContext opCtx; /* working memory for operations */
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static void
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ginRedoClearIncompleteSplit(XLogRecPtr lsn, XLogRecord *record,
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int block_index,
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RelFileNode node, BlockNumber blkno)
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ginRedoClearIncompleteSplit(XLogReaderState *record, uint8 block_id)
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{
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XLogRecPtr lsn = record->EndRecPtr;
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Buffer buffer;
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Page page;
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if (XLogReadBufferForRedo(lsn, record, block_index, node, blkno, &buffer)
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== BLK_NEEDS_REDO)
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if (XLogReadBufferForRedo(record, block_id, &buffer) == BLK_NEEDS_REDO)
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{
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page = (Page) BufferGetPage(buffer);
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GinPageGetOpaque(page)->flags &= ~GIN_INCOMPLETE_SPLIT;
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PageSetLSN(page, lsn);
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@ -42,18 +39,15 @@ ginRedoClearIncompleteSplit(XLogRecPtr lsn, XLogRecord *record,
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}
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static void
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ginRedoCreateIndex(XLogRecPtr lsn, XLogRecord *record)
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ginRedoCreateIndex(XLogReaderState *record)
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{
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RelFileNode *node = (RelFileNode *) XLogRecGetData(record);
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XLogRecPtr lsn = record->EndRecPtr;
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Buffer RootBuffer,
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MetaBuffer;
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Page page;
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/* Backup blocks are not used in create_index records */
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Assert(!(record->xl_info & XLR_BKP_BLOCK_MASK));
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MetaBuffer = XLogReadBuffer(*node, GIN_METAPAGE_BLKNO, true);
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Assert(BufferIsValid(MetaBuffer));
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MetaBuffer = XLogInitBufferForRedo(record, 0);
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Assert(BufferGetBlockNumber(MetaBuffer) == GIN_METAPAGE_BLKNO);
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page = (Page) BufferGetPage(MetaBuffer);
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GinInitMetabuffer(MetaBuffer);
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@ -61,8 +55,8 @@ ginRedoCreateIndex(XLogRecPtr lsn, XLogRecord *record)
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PageSetLSN(page, lsn);
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MarkBufferDirty(MetaBuffer);
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RootBuffer = XLogReadBuffer(*node, GIN_ROOT_BLKNO, true);
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Assert(BufferIsValid(RootBuffer));
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RootBuffer = XLogInitBufferForRedo(record, 1);
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Assert(BufferGetBlockNumber(RootBuffer) == GIN_ROOT_BLKNO);
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page = (Page) BufferGetPage(RootBuffer);
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GinInitBuffer(RootBuffer, GIN_LEAF);
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@ -75,18 +69,15 @@ ginRedoCreateIndex(XLogRecPtr lsn, XLogRecord *record)
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}
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static void
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ginRedoCreatePTree(XLogRecPtr lsn, XLogRecord *record)
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ginRedoCreatePTree(XLogReaderState *record)
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{
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XLogRecPtr lsn = record->EndRecPtr;
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ginxlogCreatePostingTree *data = (ginxlogCreatePostingTree *) XLogRecGetData(record);
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char *ptr;
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Buffer buffer;
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Page page;
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/* Backup blocks are not used in create_ptree records */
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Assert(!(record->xl_info & XLR_BKP_BLOCK_MASK));
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buffer = XLogReadBuffer(data->node, data->blkno, true);
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Assert(BufferIsValid(buffer));
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buffer = XLogInitBufferForRedo(record, 0);
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page = (Page) BufferGetPage(buffer);
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GinInitBuffer(buffer, GIN_DATA | GIN_LEAF | GIN_COMPRESSED);
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@ -328,35 +319,40 @@ ginRedoInsertData(Buffer buffer, bool isLeaf, BlockNumber rightblkno, void *rdat
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}
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static void
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ginRedoInsert(XLogRecPtr lsn, XLogRecord *record)
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ginRedoInsert(XLogReaderState *record)
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{
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XLogRecPtr lsn = record->EndRecPtr;
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ginxlogInsert *data = (ginxlogInsert *) XLogRecGetData(record);
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Buffer buffer;
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char *payload;
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#ifdef NOT_USED
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BlockNumber leftChildBlkno = InvalidBlockNumber;
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#endif
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BlockNumber rightChildBlkno = InvalidBlockNumber;
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bool isLeaf = (data->flags & GIN_INSERT_ISLEAF) != 0;
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payload = XLogRecGetData(record) + sizeof(ginxlogInsert);
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/*
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* First clear incomplete-split flag on child page if this finishes a
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* split.
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*/
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if (!isLeaf)
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{
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char *payload = XLogRecGetData(record) + sizeof(ginxlogInsert);
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#ifdef NOT_USED
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leftChildBlkno = BlockIdGetBlockNumber((BlockId) payload);
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#endif
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payload += sizeof(BlockIdData);
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rightChildBlkno = BlockIdGetBlockNumber((BlockId) payload);
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payload += sizeof(BlockIdData);
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ginRedoClearIncompleteSplit(lsn, record, 0, data->node, leftChildBlkno);
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ginRedoClearIncompleteSplit(record, 1);
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}
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if (XLogReadBufferForRedo(lsn, record, isLeaf ? 0 : 1, data->node,
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data->blkno, &buffer) == BLK_NEEDS_REDO)
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if (XLogReadBufferForRedo(record, 0, &buffer) == BLK_NEEDS_REDO)
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{
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Page page = BufferGetPage(buffer);
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Size len;
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char *payload = XLogRecGetBlockData(record, 0, &len);
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/* How to insert the payload is tree-type specific */
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if (data->flags & GIN_INSERT_ISDATA)
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@ -378,161 +374,33 @@ ginRedoInsert(XLogRecPtr lsn, XLogRecord *record)
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}
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static void
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ginRedoSplitEntry(Page lpage, Page rpage, void *rdata)
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{
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ginxlogSplitEntry *data = (ginxlogSplitEntry *) rdata;
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IndexTuple itup = (IndexTuple) ((char *) rdata + sizeof(ginxlogSplitEntry));
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OffsetNumber i;
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for (i = 0; i < data->separator; i++)
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{
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if (PageAddItem(lpage, (Item) itup, IndexTupleSize(itup), InvalidOffsetNumber, false, false) == InvalidOffsetNumber)
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elog(ERROR, "failed to add item to gin index page");
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itup = (IndexTuple) (((char *) itup) + MAXALIGN(IndexTupleSize(itup)));
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}
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for (i = data->separator; i < data->nitem; i++)
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{
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if (PageAddItem(rpage, (Item) itup, IndexTupleSize(itup), InvalidOffsetNumber, false, false) == InvalidOffsetNumber)
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elog(ERROR, "failed to add item to gin index page");
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itup = (IndexTuple) (((char *) itup) + MAXALIGN(IndexTupleSize(itup)));
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}
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}
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static void
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ginRedoSplitData(Page lpage, Page rpage, void *rdata)
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{
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bool isleaf = GinPageIsLeaf(lpage);
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if (isleaf)
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{
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ginxlogSplitDataLeaf *data = (ginxlogSplitDataLeaf *) rdata;
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Pointer lptr = (Pointer) rdata + sizeof(ginxlogSplitDataLeaf);
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Pointer rptr = lptr + data->lsize;
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Assert(data->lsize > 0 && data->lsize <= GinDataPageMaxDataSize);
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Assert(data->rsize > 0 && data->rsize <= GinDataPageMaxDataSize);
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memcpy(GinDataLeafPageGetPostingList(lpage), lptr, data->lsize);
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memcpy(GinDataLeafPageGetPostingList(rpage), rptr, data->rsize);
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GinDataPageSetDataSize(lpage, data->lsize);
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GinDataPageSetDataSize(rpage, data->rsize);
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*GinDataPageGetRightBound(lpage) = data->lrightbound;
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*GinDataPageGetRightBound(rpage) = data->rrightbound;
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}
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else
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{
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ginxlogSplitDataInternal *data = (ginxlogSplitDataInternal *) rdata;
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PostingItem *items = (PostingItem *) ((char *) rdata + sizeof(ginxlogSplitDataInternal));
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OffsetNumber i;
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OffsetNumber maxoff;
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for (i = 0; i < data->separator; i++)
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GinDataPageAddPostingItem(lpage, &items[i], InvalidOffsetNumber);
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for (i = data->separator; i < data->nitem; i++)
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GinDataPageAddPostingItem(rpage, &items[i], InvalidOffsetNumber);
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/* set up right key */
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maxoff = GinPageGetOpaque(lpage)->maxoff;
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*GinDataPageGetRightBound(lpage) = GinDataPageGetPostingItem(lpage, maxoff)->key;
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*GinDataPageGetRightBound(rpage) = data->rightbound;
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}
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}
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static void
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ginRedoSplit(XLogRecPtr lsn, XLogRecord *record)
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ginRedoSplit(XLogReaderState *record)
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{
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ginxlogSplit *data = (ginxlogSplit *) XLogRecGetData(record);
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Buffer lbuffer,
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rbuffer;
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Page lpage,
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rpage;
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uint32 flags;
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uint32 lflags,
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rflags;
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char *payload;
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rbuffer,
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rootbuf;
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bool isLeaf = (data->flags & GIN_INSERT_ISLEAF) != 0;
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bool isData = (data->flags & GIN_INSERT_ISDATA) != 0;
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bool isRoot = (data->flags & GIN_SPLIT_ROOT) != 0;
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payload = XLogRecGetData(record) + sizeof(ginxlogSplit);
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/*
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* First clear incomplete-split flag on child page if this finishes a
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* split
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*/
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if (!isLeaf)
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ginRedoClearIncompleteSplit(lsn, record, 0, data->node, data->leftChildBlkno);
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ginRedoClearIncompleteSplit(record, 3);
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flags = 0;
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if (isLeaf)
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flags |= GIN_LEAF;
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if (isData)
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flags |= GIN_DATA;
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if (isLeaf && isData)
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flags |= GIN_COMPRESSED;
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if (XLogReadBufferForRedo(record, 0, &lbuffer) != BLK_RESTORED)
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elog(ERROR, "GIN split record did not contain a full-page image of left page");
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lflags = rflags = flags;
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if (!isRoot)
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lflags |= GIN_INCOMPLETE_SPLIT;
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lbuffer = XLogReadBuffer(data->node, data->lblkno, true);
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Assert(BufferIsValid(lbuffer));
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lpage = (Page) BufferGetPage(lbuffer);
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GinInitBuffer(lbuffer, lflags);
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rbuffer = XLogReadBuffer(data->node, data->rblkno, true);
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Assert(BufferIsValid(rbuffer));
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rpage = (Page) BufferGetPage(rbuffer);
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GinInitBuffer(rbuffer, rflags);
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GinPageGetOpaque(lpage)->rightlink = BufferGetBlockNumber(rbuffer);
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GinPageGetOpaque(rpage)->rightlink = isRoot ? InvalidBlockNumber : data->rrlink;
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/* Do the tree-type specific portion to restore the page contents */
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if (isData)
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ginRedoSplitData(lpage, rpage, payload);
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else
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ginRedoSplitEntry(lpage, rpage, payload);
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PageSetLSN(rpage, lsn);
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MarkBufferDirty(rbuffer);
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PageSetLSN(lpage, lsn);
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MarkBufferDirty(lbuffer);
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if (XLogReadBufferForRedo(record, 1, &rbuffer) != BLK_RESTORED)
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elog(ERROR, "GIN split record did not contain a full-page image of right page");
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if (isRoot)
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{
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BlockNumber rootBlkno = data->rrlink;
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Buffer rootBuf = XLogReadBuffer(data->node, rootBlkno, true);
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Page rootPage = BufferGetPage(rootBuf);
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GinInitBuffer(rootBuf, flags & ~GIN_LEAF & ~GIN_COMPRESSED);
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if (isData)
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{
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Assert(rootBlkno != GIN_ROOT_BLKNO);
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ginDataFillRoot(NULL, BufferGetPage(rootBuf),
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BufferGetBlockNumber(lbuffer),
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BufferGetPage(lbuffer),
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BufferGetBlockNumber(rbuffer),
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BufferGetPage(rbuffer));
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}
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else
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{
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Assert(rootBlkno == GIN_ROOT_BLKNO);
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ginEntryFillRoot(NULL, BufferGetPage(rootBuf),
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BufferGetBlockNumber(lbuffer),
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BufferGetPage(lbuffer),
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BufferGetBlockNumber(rbuffer),
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BufferGetPage(rbuffer));
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}
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PageSetLSN(rootPage, lsn);
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MarkBufferDirty(rootBuf);
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UnlockReleaseBuffer(rootBuf);
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if (XLogReadBufferForRedo(record, 2, &rootbuf) != BLK_RESTORED)
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elog(ERROR, "GIN split record did not contain a full-page image of root page");
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UnlockReleaseBuffer(rootbuf);
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}
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UnlockReleaseBuffer(rbuffer);
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@ -544,54 +412,30 @@ ginRedoSplit(XLogRecPtr lsn, XLogRecord *record)
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* a XLOG_FPI record.
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*/
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static void
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ginRedoVacuumPage(XLogRecPtr lsn, XLogRecord *record)
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ginRedoVacuumPage(XLogReaderState *record)
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{
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ginxlogVacuumPage *xlrec = (ginxlogVacuumPage *) XLogRecGetData(record);
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char *blk = ((char *) xlrec) + sizeof(ginxlogVacuumPage);
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Buffer buffer;
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Page page;
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Assert(xlrec->hole_offset < BLCKSZ);
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Assert(xlrec->hole_length < BLCKSZ);
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/* Backup blocks are not used, we'll re-initialize the page always. */
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Assert(!(record->xl_info & XLR_BKP_BLOCK_MASK));
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buffer = XLogReadBuffer(xlrec->node, xlrec->blkno, true);
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if (!BufferIsValid(buffer))
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return;
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page = (Page) BufferGetPage(buffer);
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if (xlrec->hole_length == 0)
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if (XLogReadBufferForRedo(record, 0, &buffer) != BLK_RESTORED)
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{
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memcpy((char *) page, blk, BLCKSZ);
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elog(ERROR, "replay of gin entry tree page vacuum did not restore the page");
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}
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else
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{
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memcpy((char *) page, blk, xlrec->hole_offset);
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/* must zero-fill the hole */
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MemSet((char *) page + xlrec->hole_offset, 0, xlrec->hole_length);
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memcpy((char *) page + (xlrec->hole_offset + xlrec->hole_length),
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blk + xlrec->hole_offset,
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BLCKSZ - (xlrec->hole_offset + xlrec->hole_length));
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}
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PageSetLSN(page, lsn);
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MarkBufferDirty(buffer);
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UnlockReleaseBuffer(buffer);
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}
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static void
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ginRedoVacuumDataLeafPage(XLogRecPtr lsn, XLogRecord *record)
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ginRedoVacuumDataLeafPage(XLogReaderState *record)
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{
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ginxlogVacuumDataLeafPage *xlrec = (ginxlogVacuumDataLeafPage *) XLogRecGetData(record);
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XLogRecPtr lsn = record->EndRecPtr;
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Buffer buffer;
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if (XLogReadBufferForRedo(lsn, record, 0, xlrec->node, xlrec->blkno,
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&buffer) == BLK_NEEDS_REDO)
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if (XLogReadBufferForRedo(record, 0, &buffer) == BLK_NEEDS_REDO)
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{
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Page page = BufferGetPage(buffer);
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Size len;
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ginxlogVacuumDataLeafPage *xlrec;
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xlrec = (ginxlogVacuumDataLeafPage *) XLogRecGetBlockData(record, 0, &len);
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Assert(GinPageIsLeaf(page));
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Assert(GinPageIsData(page));
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@ -605,30 +449,27 @@ ginRedoVacuumDataLeafPage(XLogRecPtr lsn, XLogRecord *record)
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}
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static void
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ginRedoDeletePage(XLogRecPtr lsn, XLogRecord *record)
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ginRedoDeletePage(XLogReaderState *record)
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{
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XLogRecPtr lsn = record->EndRecPtr;
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ginxlogDeletePage *data = (ginxlogDeletePage *) XLogRecGetData(record);
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Buffer dbuffer;
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Buffer pbuffer;
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Buffer lbuffer;
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Page page;
|
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|
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if (XLogReadBufferForRedo(lsn, record, 0, data->node, data->blkno, &dbuffer)
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== BLK_NEEDS_REDO)
|
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if (XLogReadBufferForRedo(record, 0, &dbuffer) == BLK_NEEDS_REDO)
|
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{
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page = BufferGetPage(dbuffer);
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Assert(GinPageIsData(page));
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GinPageGetOpaque(page)->flags = GIN_DELETED;
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PageSetLSN(page, lsn);
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MarkBufferDirty(dbuffer);
|
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}
|
||||
|
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if (XLogReadBufferForRedo(lsn, record, 1, data->node, data->parentBlkno,
|
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&pbuffer) == BLK_NEEDS_REDO)
|
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if (XLogReadBufferForRedo(record, 1, &pbuffer) == BLK_NEEDS_REDO)
|
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{
|
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page = BufferGetPage(pbuffer);
|
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|
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Assert(GinPageIsData(page));
|
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Assert(!GinPageIsLeaf(page));
|
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GinPageDeletePostingItem(page, data->parentOffset);
|
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@ -636,11 +477,9 @@ ginRedoDeletePage(XLogRecPtr lsn, XLogRecord *record)
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MarkBufferDirty(pbuffer);
|
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}
|
||||
|
||||
if (XLogReadBufferForRedo(lsn, record, 2, data->node, data->leftBlkno,
|
||||
&lbuffer) == BLK_NEEDS_REDO)
|
||||
if (XLogReadBufferForRedo(record, 2, &lbuffer) == BLK_NEEDS_REDO)
|
||||
{
|
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page = BufferGetPage(lbuffer);
|
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|
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Assert(GinPageIsData(page));
|
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GinPageGetOpaque(page)->rightlink = data->rightLink;
|
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PageSetLSN(page, lsn);
|
||||
@ -656,8 +495,9 @@ ginRedoDeletePage(XLogRecPtr lsn, XLogRecord *record)
|
||||
}
|
||||
|
||||
static void
|
||||
ginRedoUpdateMetapage(XLogRecPtr lsn, XLogRecord *record)
|
||||
ginRedoUpdateMetapage(XLogReaderState *record)
|
||||
{
|
||||
XLogRecPtr lsn = record->EndRecPtr;
|
||||
ginxlogUpdateMeta *data = (ginxlogUpdateMeta *) XLogRecGetData(record);
|
||||
Buffer metabuffer;
|
||||
Page metapage;
|
||||
@ -668,9 +508,8 @@ ginRedoUpdateMetapage(XLogRecPtr lsn, XLogRecord *record)
|
||||
* image, so restore the metapage unconditionally without looking at the
|
||||
* LSN, to avoid torn page hazards.
|
||||
*/
|
||||
metabuffer = XLogReadBuffer(data->node, GIN_METAPAGE_BLKNO, false);
|
||||
if (!BufferIsValid(metabuffer))
|
||||
return; /* assume index was deleted, nothing to do */
|
||||
metabuffer = XLogInitBufferForRedo(record, 0);
|
||||
Assert(BufferGetBlockNumber(metabuffer) == GIN_METAPAGE_BLKNO);
|
||||
metapage = BufferGetPage(metabuffer);
|
||||
|
||||
memcpy(GinPageGetMeta(metapage), &data->metadata, sizeof(GinMetaPageData));
|
||||
@ -682,17 +521,18 @@ ginRedoUpdateMetapage(XLogRecPtr lsn, XLogRecord *record)
|
||||
/*
|
||||
* insert into tail page
|
||||
*/
|
||||
if (XLogReadBufferForRedo(lsn, record, 0, data->node,
|
||||
data->metadata.tail, &buffer)
|
||||
== BLK_NEEDS_REDO)
|
||||
if (XLogReadBufferForRedo(record, 1, &buffer) == BLK_NEEDS_REDO)
|
||||
{
|
||||
Page page = BufferGetPage(buffer);
|
||||
OffsetNumber off;
|
||||
int i;
|
||||
Size tupsize;
|
||||
char *payload;
|
||||
IndexTuple tuples;
|
||||
Size totaltupsize;
|
||||
|
||||
tuples = (IndexTuple) (XLogRecGetData(record) + sizeof(ginxlogUpdateMeta));
|
||||
payload = XLogRecGetBlockData(record, 1, &totaltupsize);
|
||||
tuples = (IndexTuple) payload;
|
||||
|
||||
if (PageIsEmpty(page))
|
||||
off = FirstOffsetNumber;
|
||||
@ -711,6 +551,7 @@ ginRedoUpdateMetapage(XLogRecPtr lsn, XLogRecord *record)
|
||||
|
||||
off++;
|
||||
}
|
||||
Assert(payload + totaltupsize == (char *) tuples);
|
||||
|
||||
/*
|
||||
* Increase counter of heap tuples
|
||||
@ -728,8 +569,7 @@ ginRedoUpdateMetapage(XLogRecPtr lsn, XLogRecord *record)
|
||||
/*
|
||||
* New tail
|
||||
*/
|
||||
if (XLogReadBufferForRedo(lsn, record, 0, data->node, data->prevTail,
|
||||
&buffer) == BLK_NEEDS_REDO)
|
||||
if (XLogReadBufferForRedo(record, 1, &buffer) == BLK_NEEDS_REDO)
|
||||
{
|
||||
Page page = BufferGetPage(buffer);
|
||||
|
||||
@ -746,8 +586,9 @@ ginRedoUpdateMetapage(XLogRecPtr lsn, XLogRecord *record)
|
||||
}
|
||||
|
||||
static void
|
||||
ginRedoInsertListPage(XLogRecPtr lsn, XLogRecord *record)
|
||||
ginRedoInsertListPage(XLogReaderState *record)
|
||||
{
|
||||
XLogRecPtr lsn = record->EndRecPtr;
|
||||
ginxlogInsertListPage *data = (ginxlogInsertListPage *) XLogRecGetData(record);
|
||||
Buffer buffer;
|
||||
Page page;
|
||||
@ -755,15 +596,12 @@ ginRedoInsertListPage(XLogRecPtr lsn, XLogRecord *record)
|
||||
off = FirstOffsetNumber;
|
||||
int i,
|
||||
tupsize;
|
||||
IndexTuple tuples = (IndexTuple) (XLogRecGetData(record) + sizeof(ginxlogInsertListPage));
|
||||
char *payload;
|
||||
IndexTuple tuples;
|
||||
Size totaltupsize;
|
||||
|
||||
/*
|
||||
* Backup blocks are not used, we always re-initialize the page.
|
||||
*/
|
||||
Assert(!(record->xl_info & XLR_BKP_BLOCK_MASK));
|
||||
|
||||
buffer = XLogReadBuffer(data->node, data->blkno, true);
|
||||
Assert(BufferIsValid(buffer));
|
||||
/* We always re-initialize the page. */
|
||||
buffer = XLogInitBufferForRedo(record, 0);
|
||||
page = BufferGetPage(buffer);
|
||||
|
||||
GinInitBuffer(buffer, GIN_LIST);
|
||||
@ -779,6 +617,9 @@ ginRedoInsertListPage(XLogRecPtr lsn, XLogRecord *record)
|
||||
GinPageGetOpaque(page)->maxoff = 0;
|
||||
}
|
||||
|
||||
payload = XLogRecGetBlockData(record, 0, &totaltupsize);
|
||||
|
||||
tuples = (IndexTuple) payload;
|
||||
for (i = 0; i < data->ntuples; i++)
|
||||
{
|
||||
tupsize = IndexTupleSize(tuples);
|
||||
@ -791,6 +632,7 @@ ginRedoInsertListPage(XLogRecPtr lsn, XLogRecord *record)
|
||||
tuples = (IndexTuple) (((char *) tuples) + tupsize);
|
||||
off++;
|
||||
}
|
||||
Assert((char *) tuples == payload + totaltupsize);
|
||||
|
||||
PageSetLSN(page, lsn);
|
||||
MarkBufferDirty(buffer);
|
||||
@ -799,21 +641,20 @@ ginRedoInsertListPage(XLogRecPtr lsn, XLogRecord *record)
|
||||
}
|
||||
|
||||
static void
|
||||
ginRedoDeleteListPages(XLogRecPtr lsn, XLogRecord *record)
|
||||
ginRedoDeleteListPages(XLogReaderState *record)
|
||||
{
|
||||
XLogRecPtr lsn = record->EndRecPtr;
|
||||
ginxlogDeleteListPages *data = (ginxlogDeleteListPages *) XLogRecGetData(record);
|
||||
Buffer metabuffer;
|
||||
Page metapage;
|
||||
int i;
|
||||
|
||||
/* Backup blocks are not used in delete_listpage records */
|
||||
Assert(!(record->xl_info & XLR_BKP_BLOCK_MASK));
|
||||
|
||||
metabuffer = XLogReadBuffer(data->node, GIN_METAPAGE_BLKNO, false);
|
||||
if (!BufferIsValid(metabuffer))
|
||||
return; /* assume index was deleted, nothing to do */
|
||||
metabuffer = XLogInitBufferForRedo(record, 0);
|
||||
Assert(BufferGetBlockNumber(metabuffer) == GIN_METAPAGE_BLKNO);
|
||||
metapage = BufferGetPage(metabuffer);
|
||||
|
||||
GinInitPage(metapage, GIN_META, BufferGetPageSize(metabuffer));
|
||||
|
||||
memcpy(GinPageGetMeta(metapage), &data->metadata, sizeof(GinMetaPageData));
|
||||
PageSetLSN(metapage, lsn);
|
||||
MarkBufferDirty(metabuffer);
|
||||
@ -838,7 +679,7 @@ ginRedoDeleteListPages(XLogRecPtr lsn, XLogRecord *record)
|
||||
Buffer buffer;
|
||||
Page page;
|
||||
|
||||
buffer = XLogReadBuffer(data->node, data->toDelete[i], true);
|
||||
buffer = XLogInitBufferForRedo(record, i + 1);
|
||||
page = BufferGetPage(buffer);
|
||||
GinInitBuffer(buffer, GIN_DELETED);
|
||||
|
||||
@ -851,9 +692,9 @@ ginRedoDeleteListPages(XLogRecPtr lsn, XLogRecord *record)
|
||||
}
|
||||
|
||||
void
|
||||
gin_redo(XLogRecPtr lsn, XLogRecord *record)
|
||||
gin_redo(XLogReaderState *record)
|
||||
{
|
||||
uint8 info = record->xl_info & ~XLR_INFO_MASK;
|
||||
uint8 info = XLogRecGetInfo(record) & ~XLR_INFO_MASK;
|
||||
MemoryContext oldCtx;
|
||||
|
||||
/*
|
||||
@ -866,34 +707,34 @@ gin_redo(XLogRecPtr lsn, XLogRecord *record)
|
||||
switch (info)
|
||||
{
|
||||
case XLOG_GIN_CREATE_INDEX:
|
||||
ginRedoCreateIndex(lsn, record);
|
||||
ginRedoCreateIndex(record);
|
||||
break;
|
||||
case XLOG_GIN_CREATE_PTREE:
|
||||
ginRedoCreatePTree(lsn, record);
|
||||
ginRedoCreatePTree(record);
|
||||
break;
|
||||
case XLOG_GIN_INSERT:
|
||||
ginRedoInsert(lsn, record);
|
||||
ginRedoInsert(record);
|
||||
break;
|
||||
case XLOG_GIN_SPLIT:
|
||||
ginRedoSplit(lsn, record);
|
||||
ginRedoSplit(record);
|
||||
break;
|
||||
case XLOG_GIN_VACUUM_PAGE:
|
||||
ginRedoVacuumPage(lsn, record);
|
||||
ginRedoVacuumPage(record);
|
||||
break;
|
||||
case XLOG_GIN_VACUUM_DATA_LEAF_PAGE:
|
||||
ginRedoVacuumDataLeafPage(lsn, record);
|
||||
ginRedoVacuumDataLeafPage(record);
|
||||
break;
|
||||
case XLOG_GIN_DELETE_PAGE:
|
||||
ginRedoDeletePage(lsn, record);
|
||||
ginRedoDeletePage(record);
|
||||
break;
|
||||
case XLOG_GIN_UPDATE_META_PAGE:
|
||||
ginRedoUpdateMetapage(lsn, record);
|
||||
ginRedoUpdateMetapage(record);
|
||||
break;
|
||||
case XLOG_GIN_INSERT_LISTPAGE:
|
||||
ginRedoInsertListPage(lsn, record);
|
||||
ginRedoInsertListPage(record);
|
||||
break;
|
||||
case XLOG_GIN_DELETE_LISTPAGE:
|
||||
ginRedoDeleteListPages(lsn, record);
|
||||
ginRedoDeleteListPages(record);
|
||||
break;
|
||||
default:
|
||||
elog(PANIC, "gin_redo: unknown op code %u", info);
|
||||
|
||||
Reference in New Issue
Block a user