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/*-------------------------------------------------------------------------
*
* hashdesc.c
* rmgr descriptor routines for access/hash/hash.c
*
* Portions Copyright (c) 1996-2023, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
*
* IDENTIFICATION
* src/backend/access/rmgrdesc/hashdesc.c
*
*-------------------------------------------------------------------------
*/
#include "postgres.h"
#include "access/hash_xlog.h"
void
hash_desc(StringInfo buf, XLogReaderState *record)
{
char *rec = XLogRecGetData(record);
uint8 info = XLogRecGetInfo(record) & ~XLR_INFO_MASK;
switch (info)
{
case XLOG_HASH_INIT_META_PAGE:
{
xl_hash_init_meta_page *xlrec = (xl_hash_init_meta_page *) rec;
appendStringInfo(buf, "num_tuples %g, fillfactor %d",
xlrec->num_tuples, xlrec->ffactor);
break;
}
case XLOG_HASH_INIT_BITMAP_PAGE:
{
xl_hash_init_bitmap_page *xlrec = (xl_hash_init_bitmap_page *) rec;
appendStringInfo(buf, "bmsize %d", xlrec->bmsize);
break;
}
case XLOG_HASH_INSERT:
{
xl_hash_insert *xlrec = (xl_hash_insert *) rec;
appendStringInfo(buf, "off %u", xlrec->offnum);
break;
}
case XLOG_HASH_ADD_OVFL_PAGE:
{
xl_hash_add_ovfl_page *xlrec = (xl_hash_add_ovfl_page *) rec;
appendStringInfo(buf, "bmsize %d, bmpage_found %c",
xlrec->bmsize, (xlrec->bmpage_found) ? 'T' : 'F');
break;
}
case XLOG_HASH_SPLIT_ALLOCATE_PAGE:
{
xl_hash_split_allocate_page *xlrec = (xl_hash_split_allocate_page *) rec;
appendStringInfo(buf, "new_bucket %u, meta_page_masks_updated %c, issplitpoint_changed %c",
xlrec->new_bucket,
(xlrec->flags & XLH_SPLIT_META_UPDATE_MASKS) ? 'T' : 'F',
(xlrec->flags & XLH_SPLIT_META_UPDATE_SPLITPOINT) ? 'T' : 'F');
break;
}
case XLOG_HASH_SPLIT_COMPLETE:
{
xl_hash_split_complete *xlrec = (xl_hash_split_complete *) rec;
appendStringInfo(buf, "old_bucket_flag %u, new_bucket_flag %u",
xlrec->old_bucket_flag, xlrec->new_bucket_flag);
break;
}
case XLOG_HASH_MOVE_PAGE_CONTENTS:
{
xl_hash_move_page_contents *xlrec = (xl_hash_move_page_contents *) rec;
appendStringInfo(buf, "ntups %d, is_primary %c",
xlrec->ntups,
xlrec->is_prim_bucket_same_wrt ? 'T' : 'F');
break;
}
case XLOG_HASH_SQUEEZE_PAGE:
{
xl_hash_squeeze_page *xlrec = (xl_hash_squeeze_page *) rec;
appendStringInfo(buf, "prevblkno %u, nextblkno %u, ntups %d, is_primary %c",
xlrec->prevblkno,
xlrec->nextblkno,
xlrec->ntups,
xlrec->is_prim_bucket_same_wrt ? 'T' : 'F');
break;
}
case XLOG_HASH_DELETE:
{
xl_hash_delete *xlrec = (xl_hash_delete *) rec;
appendStringInfo(buf, "clear_dead_marking %c, is_primary %c",
xlrec->clear_dead_marking ? 'T' : 'F',
xlrec->is_primary_bucket_page ? 'T' : 'F');
break;
}
case XLOG_HASH_UPDATE_META_PAGE:
{
xl_hash_update_meta_page *xlrec = (xl_hash_update_meta_page *) rec;
appendStringInfo(buf, "ntuples %g",
xlrec->ntuples);
break;
}
case XLOG_HASH_VACUUM_ONE_PAGE:
{
xl_hash_vacuum_one_page *xlrec = (xl_hash_vacuum_one_page *) rec;
appendStringInfo(buf, "ntuples %d, snapshotConflictHorizon %u",
xlrec->ntuples,
xlrec->snapshotConflictHorizon);
break;
}
}
}
const char *
hash_identify(uint8 info)
{
const char *id = NULL;
switch (info & ~XLR_INFO_MASK)
{
case XLOG_HASH_INIT_META_PAGE:
id = "INIT_META_PAGE";
break;
case XLOG_HASH_INIT_BITMAP_PAGE:
id = "INIT_BITMAP_PAGE";
break;
case XLOG_HASH_INSERT:
id = "INSERT";
break;
case XLOG_HASH_ADD_OVFL_PAGE:
id = "ADD_OVFL_PAGE";
break;
case XLOG_HASH_SPLIT_ALLOCATE_PAGE:
id = "SPLIT_ALLOCATE_PAGE";
break;
case XLOG_HASH_SPLIT_PAGE:
id = "SPLIT_PAGE";
break;
case XLOG_HASH_SPLIT_COMPLETE:
id = "SPLIT_COMPLETE";
break;
case XLOG_HASH_MOVE_PAGE_CONTENTS:
id = "MOVE_PAGE_CONTENTS";
break;
case XLOG_HASH_SQUEEZE_PAGE:
id = "SQUEEZE_PAGE";
break;
case XLOG_HASH_DELETE:
id = "DELETE";
break;
case XLOG_HASH_SPLIT_CLEANUP:
id = "SPLIT_CLEANUP";
break;
case XLOG_HASH_UPDATE_META_PAGE:
id = "UPDATE_META_PAGE";
break;
case XLOG_HASH_VACUUM_ONE_PAGE:
id = "VACUUM_ONE_PAGE";
}
return id;
}
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