Line data    Source code

       1             : /*-------------------------------------------------------------------------
       2             :  *
       3             :  * nbtdesc.c
       4             :  *    rmgr descriptor routines for access/nbtree/nbtxlog.c
       5             :  *
       6             :  * Portions Copyright (c) 1996-2017, PostgreSQL Global Development Group
       7             :  * Portions Copyright (c) 1994, Regents of the University of California
       8             :  *
       9             :  *
      10             :  * IDENTIFICATION
      11             :  *    src/backend/access/rmgrdesc/nbtdesc.c
      12             :  *
      13             :  *-------------------------------------------------------------------------
      14             :  */
      15             : #include "postgres.h"
      16             : 
      17             : #include "access/nbtxlog.h"
      18             : 
      19             : void
      20           0 : btree_desc(StringInfo buf, XLogReaderState *record)
      21             : {
      22           0 :     char       *rec = XLogRecGetData(record);
      23           0 :     uint8       info = XLogRecGetInfo(record) & ~XLR_INFO_MASK;
      24             : 
      25           0 :     switch (info)
      26             :     {
      27             :         case XLOG_BTREE_INSERT_LEAF:
      28             :         case XLOG_BTREE_INSERT_UPPER:
      29             :         case XLOG_BTREE_INSERT_META:
      30             :             {
      31           0 :                 xl_btree_insert *xlrec = (xl_btree_insert *) rec;
      32             : 
      33           0 :                 appendStringInfo(buf, "off %u", xlrec->offnum);
      34           0 :                 break;
      35             :             }
      36             :         case XLOG_BTREE_SPLIT_L:
      37             :         case XLOG_BTREE_SPLIT_R:
      38             :             {
      39           0 :                 xl_btree_split *xlrec = (xl_btree_split *) rec;
      40             : 
      41           0 :                 appendStringInfo(buf, "level %u, firstright %d",
      42           0 :                                  xlrec->level, xlrec->firstright);
      43           0 :                 break;
      44             :             }
      45             :         case XLOG_BTREE_VACUUM:
      46             :             {
      47           0 :                 xl_btree_vacuum *xlrec = (xl_btree_vacuum *) rec;
      48             : 
      49           0 :                 appendStringInfo(buf, "lastBlockVacuumed %u",
      50             :                                  xlrec->lastBlockVacuumed);
      51           0 :                 break;
      52             :             }
      53             :         case XLOG_BTREE_DELETE:
      54             :             {
      55           0 :                 xl_btree_delete *xlrec = (xl_btree_delete *) rec;
      56             : 
      57           0 :                 appendStringInfo(buf, "%d items", xlrec->nitems);
      58           0 :                 break;
      59             :             }
      60             :         case XLOG_BTREE_MARK_PAGE_HALFDEAD:
      61             :             {
      62           0 :                 xl_btree_mark_page_halfdead *xlrec = (xl_btree_mark_page_halfdead *) rec;
      63             : 
      64           0 :                 appendStringInfo(buf, "topparent %u; leaf %u; left %u; right %u",
      65             :                                  xlrec->topparent, xlrec->leafblk, xlrec->leftblk, xlrec->rightblk);
      66           0 :                 break;
      67             :             }
      68             :         case XLOG_BTREE_UNLINK_PAGE_META:
      69             :         case XLOG_BTREE_UNLINK_PAGE:
      70             :             {
      71           0 :                 xl_btree_unlink_page *xlrec = (xl_btree_unlink_page *) rec;
      72             : 
      73           0 :                 appendStringInfo(buf, "left %u; right %u; btpo_xact %u; ",
      74             :                                  xlrec->leftsib, xlrec->rightsib,
      75             :                                  xlrec->btpo_xact);
      76           0 :                 appendStringInfo(buf, "leafleft %u; leafright %u; topparent %u",
      77             :                                  xlrec->leafleftsib, xlrec->leafrightsib,
      78             :                                  xlrec->topparent);
      79           0 :                 break;
      80             :             }
      81             :         case XLOG_BTREE_NEWROOT:
      82             :             {
      83           0 :                 xl_btree_newroot *xlrec = (xl_btree_newroot *) rec;
      84             : 
      85           0 :                 appendStringInfo(buf, "lev %u", xlrec->level);
      86           0 :                 break;
      87             :             }
      88             :         case XLOG_BTREE_REUSE_PAGE:
      89             :             {
      90           0 :                 xl_btree_reuse_page *xlrec = (xl_btree_reuse_page *) rec;
      91             : 
      92           0 :                 appendStringInfo(buf, "rel %u/%u/%u; latestRemovedXid %u",
      93             :                                  xlrec->node.spcNode, xlrec->node.dbNode,
      94             :                                  xlrec->node.relNode, xlrec->latestRemovedXid);
      95           0 :                 break;
      96             :             }
      97             :     }
      98           0 : }
      99             : 
     100             : const char *
     101           0 : btree_identify(uint8 info)
     102             : {
     103           0 :     const char *id = NULL;
     104             : 
     105           0 :     switch (info & ~XLR_INFO_MASK)
     106             :     {
     107             :         case XLOG_BTREE_INSERT_LEAF:
     108           0 :             id = "INSERT_LEAF";
     109           0 :             break;
     110             :         case XLOG_BTREE_INSERT_UPPER:
     111           0 :             id = "INSERT_UPPER";
     112           0 :             break;
     113             :         case XLOG_BTREE_INSERT_META:
     114           0 :             id = "INSERT_META";
     115           0 :             break;
     116             :         case XLOG_BTREE_SPLIT_L:
     117           0 :             id = "SPLIT_L";
     118           0 :             break;
     119             :         case XLOG_BTREE_SPLIT_R:
     120           0 :             id = "SPLIT_R";
     121           0 :             break;
     122             :         case XLOG_BTREE_VACUUM:
     123           0 :             id = "VACUUM";
     124           0 :             break;
     125             :         case XLOG_BTREE_DELETE:
     126           0 :             id = "DELETE";
     127           0 :             break;
     128             :         case XLOG_BTREE_MARK_PAGE_HALFDEAD:
     129           0 :             id = "MARK_PAGE_HALFDEAD";
     130           0 :             break;
     131             :         case XLOG_BTREE_UNLINK_PAGE:
     132           0 :             id = "UNLINK_PAGE";
     133           0 :             break;
     134             :         case XLOG_BTREE_UNLINK_PAGE_META:
     135           0 :             id = "UNLINK_PAGE_META";
     136           0 :             break;
     137             :         case XLOG_BTREE_NEWROOT:
     138           0 :             id = "NEWROOT";
     139           0 :             break;
     140             :         case XLOG_BTREE_REUSE_PAGE:
     141           0 :             id = "REUSE_PAGE";
     142           0 :             break;
     143             :     }
     144             : 
     145           0 :     return id;
     146             : }