Zabbix

/*

** Zabbix

** Copyright (C) 2001-2025 Zabbix SIA

**

** This program is free software; you can redistribute it and/or modify

** it under the terms of the GNU General Public License as published by

** the Free Software Foundation; either version 2 of the License, or

** (at your option) any later version.

**

** This program is distributed in the hope that it will be useful,

** but WITHOUT ANY WARRANTY; without even the implied warranty of

** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

** GNU General Public License for more details.

**

** You should have received a copy of the GNU General Public License

** along with this program; if not, write to the Free Software

** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

**/

​

#include "db.h"

​

#include "log.h"

#include "events.h"

#include "threads.h"

#include "dbcache.h"

#include "cfg.h"

#include "zbx_dbversion_constants.h"

#include "common.h"

​

typedef struct

{

    zbx_uint64_t    autoreg_hostid;

    zbx_uint64_t    hostid;

    char        *host;

    char        *ip;

    char        *dns;

    char        *host_metadata;

    int     now;

    unsigned short  port;

    unsigned short  flag;

    unsigned int    connection_type;

}

zbx_autoreg_host_t;

​

#if defined(HAVE_POSTGRESQL)

extern char ZBX_PG_ESCAPE_BACKSLASH;

#endif

​

static int  connection_failure;

extern unsigned char    program_type;

​

void    DBclose(void)

{

    zbx_db_close();

}

​

#if defined(HAVE_POSTGRESQL)

int zbx_tsdb_table_has_compressed_chunks(const char *table_names)

{

    DB_RESULT   result;

    int     ret;

​

    if (1 == ZBX_DB_TSDB_V1) {

        result = DBselect("select null from timescaledb_information.compressed_chunk_stats where hypertable_name in (%s) and "

            "compression_status='Compressed'", table_names);

    }

    else

    {

        result = DBselect("select null from timescaledb_information.chunks where hypertable_name in (%s) and "

            "is_compressed='t'", table_names);

    }

​

    if (NULL != DBfetch(result))

        ret = SUCCEED;

    else

        ret = FAIL;

​

    DBfree_result(result);

​

    return ret;

}

​

void    zbx_tsdb_update_dbversion_info(struct zbx_db_version_info_t *db_version_info)

{

    const char  *history_tables, *trends_tables;

​

    history_tables = (1 == ZBX_DB_TSDB_V1 ? ZBX_TSDB1_HISTORY_TABLES : ZBX_TSDB2_HISTORY_TABLES);

    trends_tables = (1 == ZBX_DB_TSDB_V1 ? ZBX_TSDB1_TRENDS_TABLES : ZBX_TSDB2_TRENDS_TABLES);

​

    db_version_info->history_compressed_chunks = (SUCCEED ==

            zbx_tsdb_table_has_compressed_chunks(history_tables)) ? 1 : 0;