Line data    Source code

       1             : /*-------------------------------------------------------------------------
       2             :  *
       3             :  * committsdesc.c
       4             :  *    rmgr descriptor routines for access/transam/commit_ts.c
       5             :  *
       6             :  * Portions Copyright (c) 1996-2023, PostgreSQL Global Development Group
       7             :  * Portions Copyright (c) 1994, Regents of the University of California
       8             :  *
       9             :  *
      10             :  * IDENTIFICATION
      11             :  *    src/backend/access/rmgrdesc/committsdesc.c
      12             :  *
      13             :  *-------------------------------------------------------------------------
      14             :  */
      15             : #include "postgres.h"
      16             : 
      17             : #include "access/commit_ts.h"
      18             : #include "utils/timestamp.h"
      19             : 
      20             : 
      21             : void
      22           0 : commit_ts_desc(StringInfo buf, XLogReaderState *record)
      23             : {
      24           0 :     char       *rec = XLogRecGetData(record);
      25           0 :     uint8       info = XLogRecGetInfo(record) & ~XLR_INFO_MASK;
      26             : 
      27           0 :     if (info == COMMIT_TS_ZEROPAGE)
      28             :     {
      29             :         int64       pageno;
      30             : 
      31           0 :         memcpy(&pageno, rec, sizeof(pageno));
      32           0 :         appendStringInfo(buf, "%lld", (long long) pageno);
      33             :     }
      34           0 :     else if (info == COMMIT_TS_TRUNCATE)
      35             :     {
      36           0 :         xl_commit_ts_truncate *trunc = (xl_commit_ts_truncate *) rec;
      37             : 
      38           0 :         appendStringInfo(buf, "pageno %lld, oldestXid %u",
      39           0 :                          (long long) trunc->pageno, trunc->oldestXid);
      40             :     }
      41           0 : }
      42             : 
      43             : const char *
      44           0 : commit_ts_identify(uint8 info)
      45             : {
      46           0 :     switch (info)
      47             :     {
      48           0 :         case COMMIT_TS_ZEROPAGE:
      49           0 :             return "ZEROPAGE";
      50           0 :         case COMMIT_TS_TRUNCATE:
      51           0 :             return "TRUNCATE";
      52           0 :         default:
      53           0 :             return NULL;
      54             :     }
      55             : }