LCOV - code coverage report
Current view: top level - src/bin/pg_waldump - gindesc.c (source / functions) Hit Total Coverage
Test: PostgreSQL 12beta2 Lines: 0 101 0.0 %
Date: 2019-06-19 16:07:09 Functions: 0 3 0.0 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : /*-------------------------------------------------------------------------
       2             :  *
       3             :  * gindesc.c
       4             :  *    rmgr descriptor routines for access/transam/gin/ginxlog.c
       5             :  *
       6             :  * Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
       7             :  * Portions Copyright (c) 1994, Regents of the University of California
       8             :  *
       9             :  *
      10             :  * IDENTIFICATION
      11             :  *    src/backend/access/rmgrdesc/gindesc.c
      12             :  *
      13             :  *-------------------------------------------------------------------------
      14             :  */
      15             : #include "postgres.h"
      16             : 
      17             : #include "access/ginxlog.h"
      18             : #include "access/xlogutils.h"
      19             : #include "lib/stringinfo.h"
      20             : #include "storage/relfilenode.h"
      21             : 
      22             : static void
      23           0 : desc_recompress_leaf(StringInfo buf, ginxlogRecompressDataLeaf *insertData)
      24             : {
      25             :     int         i;
      26           0 :     char       *walbuf = ((char *) insertData) + sizeof(ginxlogRecompressDataLeaf);
      27             : 
      28           0 :     appendStringInfo(buf, " %d segments:", (int) insertData->nactions);
      29             : 
      30           0 :     for (i = 0; i < insertData->nactions; i++)
      31             :     {
      32           0 :         uint8       a_segno = *((uint8 *) (walbuf++));
      33           0 :         uint8       a_action = *((uint8 *) (walbuf++));
      34           0 :         uint16      nitems = 0;
      35           0 :         int         newsegsize = 0;
      36             : 
      37           0 :         if (a_action == GIN_SEGMENT_INSERT ||
      38             :             a_action == GIN_SEGMENT_REPLACE)
      39             :         {
      40           0 :             newsegsize = SizeOfGinPostingList((GinPostingList *) walbuf);
      41           0 :             walbuf += SHORTALIGN(newsegsize);
      42             :         }
      43             : 
      44           0 :         if (a_action == GIN_SEGMENT_ADDITEMS)
      45             :         {
      46           0 :             memcpy(&nitems, walbuf, sizeof(uint16));
      47           0 :             walbuf += sizeof(uint16);
      48           0 :             walbuf += nitems * sizeof(ItemPointerData);
      49             :         }
      50             : 
      51           0 :         switch (a_action)
      52             :         {
      53             :             case GIN_SEGMENT_ADDITEMS:
      54           0 :                 appendStringInfo(buf, " %d (add %d items)", a_segno, nitems);
      55           0 :                 break;
      56             :             case GIN_SEGMENT_DELETE:
      57           0 :                 appendStringInfo(buf, " %d (delete)", a_segno);
      58           0 :                 break;
      59             :             case GIN_SEGMENT_INSERT:
      60           0 :                 appendStringInfo(buf, " %d (insert)", a_segno);
      61           0 :                 break;
      62             :             case GIN_SEGMENT_REPLACE:
      63           0 :                 appendStringInfo(buf, " %d (replace)", a_segno);
      64           0 :                 break;
      65             :             default:
      66           0 :                 appendStringInfo(buf, " %d unknown action %d ???", a_segno, a_action);
      67             :                 /* cannot decode unrecognized actions further */
      68           0 :                 return;
      69             :         }
      70             :     }
      71             : }
      72             : 
      73             : void
      74           0 : gin_desc(StringInfo buf, XLogReaderState *record)
      75             : {
      76           0 :     char       *rec = XLogRecGetData(record);
      77           0 :     uint8       info = XLogRecGetInfo(record) & ~XLR_INFO_MASK;
      78             : 
      79           0 :     switch (info)
      80             :     {
      81             :         case XLOG_GIN_CREATE_PTREE:
      82             :             /* no further information */
      83           0 :             break;
      84             :         case XLOG_GIN_INSERT:
      85             :             {
      86           0 :                 ginxlogInsert *xlrec = (ginxlogInsert *) rec;
      87             : 
      88           0 :                 appendStringInfo(buf, "isdata: %c isleaf: %c",
      89           0 :                                  (xlrec->flags & GIN_INSERT_ISDATA) ? 'T' : 'F',
      90           0 :                                  (xlrec->flags & GIN_INSERT_ISLEAF) ? 'T' : 'F');
      91           0 :                 if (!(xlrec->flags & GIN_INSERT_ISLEAF))
      92             :                 {
      93           0 :                     char       *payload = rec + sizeof(ginxlogInsert);
      94             :                     BlockNumber leftChildBlkno;
      95             :                     BlockNumber rightChildBlkno;
      96             : 
      97           0 :                     leftChildBlkno = BlockIdGetBlockNumber((BlockId) payload);
      98           0 :                     payload += sizeof(BlockIdData);
      99           0 :                     rightChildBlkno = BlockIdGetBlockNumber((BlockId) payload);
     100           0 :                     payload += sizeof(BlockNumber);
     101           0 :                     appendStringInfo(buf, " children: %u/%u",
     102             :                                      leftChildBlkno, rightChildBlkno);
     103             :                 }
     104           0 :                 if (XLogRecHasBlockImage(record, 0))
     105             :                 {
     106           0 :                     if (XLogRecBlockImageApply(record, 0))
     107           0 :                         appendStringInfoString(buf, " (full page image)");
     108             :                     else
     109           0 :                         appendStringInfoString(buf, " (full page image, for WAL verification)");
     110             :                 }
     111             :                 else
     112             :                 {
     113           0 :                     char       *payload = XLogRecGetBlockData(record, 0, NULL);
     114             : 
     115           0 :                     if (!(xlrec->flags & GIN_INSERT_ISDATA))
     116           0 :                         appendStringInfo(buf, " isdelete: %c",
     117           0 :                                          (((ginxlogInsertEntry *) payload)->isDelete) ? 'T' : 'F');
     118           0 :                     else if (xlrec->flags & GIN_INSERT_ISLEAF)
     119           0 :                         desc_recompress_leaf(buf, (ginxlogRecompressDataLeaf *) payload);
     120             :                     else
     121             :                     {
     122           0 :                         ginxlogInsertDataInternal *insertData =
     123             :                         (ginxlogInsertDataInternal *) payload;
     124             : 
     125           0 :                         appendStringInfo(buf, " pitem: %u-%u/%u",
     126           0 :                                          PostingItemGetBlockNumber(&insertData->newitem),
     127           0 :                                          ItemPointerGetBlockNumber(&insertData->newitem.key),
     128           0 :                                          ItemPointerGetOffsetNumber(&insertData->newitem.key));
     129             :                     }
     130             :                 }
     131             :             }
     132           0 :             break;
     133             :         case XLOG_GIN_SPLIT:
     134             :             {
     135           0 :                 ginxlogSplit *xlrec = (ginxlogSplit *) rec;
     136             : 
     137           0 :                 appendStringInfo(buf, "isrootsplit: %c",
     138           0 :                                  (((ginxlogSplit *) rec)->flags & GIN_SPLIT_ROOT) ? 'T' : 'F');
     139           0 :                 appendStringInfo(buf, " isdata: %c isleaf: %c",
     140           0 :                                  (xlrec->flags & GIN_INSERT_ISDATA) ? 'T' : 'F',
     141           0 :                                  (xlrec->flags & GIN_INSERT_ISLEAF) ? 'T' : 'F');
     142             :             }
     143           0 :             break;
     144             :         case XLOG_GIN_VACUUM_PAGE:
     145             :             /* no further information */
     146           0 :             break;
     147             :         case XLOG_GIN_VACUUM_DATA_LEAF_PAGE:
     148             :             {
     149           0 :                 if (XLogRecHasBlockImage(record, 0))
     150             :                 {
     151           0 :                     if (XLogRecBlockImageApply(record, 0))
     152           0 :                         appendStringInfoString(buf, " (full page image)");
     153             :                     else
     154           0 :                         appendStringInfoString(buf, " (full page image, for WAL verification)");
     155             :                 }
     156             :                 else
     157             :                 {
     158           0 :                     ginxlogVacuumDataLeafPage *xlrec =
     159             :                     (ginxlogVacuumDataLeafPage *) XLogRecGetBlockData(record, 0, NULL);
     160             : 
     161           0 :                     desc_recompress_leaf(buf, &xlrec->data);
     162             :                 }
     163             :             }
     164           0 :             break;
     165             :         case XLOG_GIN_DELETE_PAGE:
     166             :             /* no further information */
     167           0 :             break;
     168             :         case XLOG_GIN_UPDATE_META_PAGE:
     169             :             /* no further information */
     170           0 :             break;
     171             :         case XLOG_GIN_INSERT_LISTPAGE:
     172             :             /* no further information */
     173           0 :             break;
     174             :         case XLOG_GIN_DELETE_LISTPAGE:
     175           0 :             appendStringInfo(buf, "ndeleted: %d",
     176             :                              ((ginxlogDeleteListPages *) rec)->ndeleted);
     177           0 :             break;
     178             :     }
     179           0 : }
     180             : 
     181             : const char *
     182           0 : gin_identify(uint8 info)
     183             : {
     184           0 :     const char *id = NULL;
     185             : 
     186           0 :     switch (info & ~XLR_INFO_MASK)
     187             :     {
     188             :         case XLOG_GIN_CREATE_PTREE:
     189           0 :             id = "CREATE_PTREE";
     190           0 :             break;
     191             :         case XLOG_GIN_INSERT:
     192           0 :             id = "INSERT";
     193           0 :             break;
     194             :         case XLOG_GIN_SPLIT:
     195           0 :             id = "SPLIT";
     196           0 :             break;
     197             :         case XLOG_GIN_VACUUM_PAGE:
     198           0 :             id = "VACUUM_PAGE";
     199           0 :             break;
     200             :         case XLOG_GIN_VACUUM_DATA_LEAF_PAGE:
     201           0 :             id = "VACUUM_DATA_LEAF_PAGE";
     202           0 :             break;
     203             :         case XLOG_GIN_DELETE_PAGE:
     204           0 :             id = "DELETE_PAGE";
     205           0 :             break;
     206             :         case XLOG_GIN_UPDATE_META_PAGE:
     207           0 :             id = "UPDATE_META_PAGE";
     208           0 :             break;
     209             :         case XLOG_GIN_INSERT_LISTPAGE:
     210           0 :             id = "INSERT_LISTPAGE";
     211           0 :             break;
     212             :         case XLOG_GIN_DELETE_LISTPAGE:
     213           0 :             id = "DELETE_LISTPAGE";
     214           0 :             break;
     215             :     }
     216             : 
     217           0 :     return id;
     218             : }

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