mirror of
https://github.com/MariaDB/server.git
synced 2025-01-19 05:22:25 +01:00
e53a73e26c
Faster thr_alarm() Added 'Opened_files' status variable to track calls to my_open() Don't give warnings when running mysql_install_db Added option --source-install to mysql_install_db I had to do the following renames() as used polymorphism didn't work with Forte compiler on 64 bit systems index_read() -> index_read_map() index_read_idx() -> index_read_idx_map() index_read_last() -> index_read_last_map()
90 lines
3.6 KiB
C++
90 lines
3.6 KiB
C++
/* Copyright (C) 2000-2006 MySQL AB
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
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#ifdef USE_PRAGMA_INTERFACE
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#pragma interface /* gcc class implementation */
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#endif
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/* class for the the myisam merge handler */
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#include <myisammrg.h>
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class ha_myisammrg: public handler
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{
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MYRG_INFO *file;
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public:
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ha_myisammrg(handlerton *hton, TABLE_SHARE *table_arg);
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~ha_myisammrg() {}
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const char *table_type() const { return "MRG_MyISAM"; }
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const char **bas_ext() const;
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const char *index_type(uint key_number);
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ulonglong table_flags() const
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{
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return (HA_REC_NOT_IN_SEQ | HA_AUTO_PART_KEY | HA_NO_TRANSACTIONS |
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HA_BINLOG_ROW_CAPABLE | HA_BINLOG_STMT_CAPABLE |
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HA_NULL_IN_KEY | HA_CAN_INDEX_BLOBS | HA_FILE_BASED |
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HA_ANY_INDEX_MAY_BE_UNIQUE | HA_CAN_BIT_FIELD |
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HA_NO_COPY_ON_ALTER);
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}
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ulong index_flags(uint inx, uint part, bool all_parts) const
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{
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return ((table_share->key_info[inx].algorithm == HA_KEY_ALG_FULLTEXT) ?
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0 : HA_READ_NEXT | HA_READ_PREV | HA_READ_RANGE |
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HA_READ_ORDER | HA_KEYREAD_ONLY);
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}
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uint max_supported_keys() const { return MI_MAX_KEY; }
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uint max_supported_key_length() const { return MI_MAX_KEY_LENGTH; }
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uint max_supported_key_part_length() const { return MI_MAX_KEY_LENGTH; }
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double scan_time()
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{ return ulonglong2double(stats.data_file_length) / IO_SIZE + file->tables; }
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int open(const char *name, int mode, uint test_if_locked);
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int close(void);
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int write_row(uchar * buf);
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int update_row(const uchar * old_data, uchar * new_data);
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int delete_row(const uchar * buf);
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int index_read_map(uchar *buf, const uchar *key, key_part_map keypart_map,
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enum ha_rkey_function find_flag);
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int index_read_idx_map(uchar *buf, uint index, const uchar *key,
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key_part_map keypart_map,
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enum ha_rkey_function find_flag);
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int index_read_last_map(uchar *buf, const uchar *key, key_part_map keypart_map);
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int index_next(uchar * buf);
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int index_prev(uchar * buf);
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int index_first(uchar * buf);
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int index_last(uchar * buf);
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int index_next_same(uchar *buf, const uchar *key, uint keylen);
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int rnd_init(bool scan);
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int rnd_next(uchar *buf);
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int rnd_pos(uchar * buf, uchar *pos);
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void position(const uchar *record);
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ha_rows records_in_range(uint inx, key_range *min_key, key_range *max_key);
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int info(uint);
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int reset(void);
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int extra(enum ha_extra_function operation);
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int extra_opt(enum ha_extra_function operation, ulong cache_size);
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int external_lock(THD *thd, int lock_type);
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uint lock_count(void) const;
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int create(const char *name, TABLE *form, HA_CREATE_INFO *create_info);
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THR_LOCK_DATA **store_lock(THD *thd, THR_LOCK_DATA **to,
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enum thr_lock_type lock_type);
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void update_create_info(HA_CREATE_INFO *create_info);
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void append_create_info(String *packet);
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MYRG_INFO *myrg_info() { return file; }
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bool check_if_incompatible_data(HA_CREATE_INFO *info, uint table_changes);
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int check(THD* thd, HA_CHECK_OPT* check_opt);
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};
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