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ha_maria.cc
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/* Copyright (C) 2004-2008 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
Copyright (C) 2008-2009 Sun Microsystems, Inc.
Copyright (c) 2009, 2017, MariaDB Corporation.
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; version 2 of the License.
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
#ifdef USE_PRAGMA_IMPLEMENTATION
#pragma implementation // gcc: Class implementation
#endif
#define MYSQL_SERVER 1
#include <my_global.h>
#include <m_ctype.h>
#include <my_dir.h>
#include <myisampack.h>
#include <my_bit.h>
#include "ha_maria.h"
#include "trnman_public.h"
#include "trnman.h"
C_MODE_START
#include "maria_def.h"
#include "ma_rt_index.h"
#include "ma_blockrec.h"
#include "ma_checkpoint.h"
#include "ma_recovery.h"
C_MODE_END
//#include "sql_priv.h"
#include "protocol.h"
#include "sql_class.h"
#include "key.h"
#include "log.h"
#include "sql_parse.h"
/*
Note that in future versions, only *transactional* Maria tables can
rollback, so this flag should be up or down conditionally.
*/
#ifdef MARIA_CANNOT_ROLLBACK
#define CANNOT_ROLLBACK_FLAG HA_NO_TRANSACTIONS
#define trans_register_ha(A, B, C) do { /* nothing */ } while(0)
#else
#define CANNOT_ROLLBACK_FLAG 0
#endif
#define THD_TRN (*(TRN **)thd_ha_data(thd, maria_hton))
ulong pagecache_division_limit, pagecache_age_threshold, pagecache_file_hash_size;
ulonglong pagecache_buffer_size;
const char *zerofill_error_msg=
"Table is from another system and must be zerofilled or repaired to be "
"usable on this system";
/**
As the auto-repair is initiated when opened from the SQL layer
(open_unireg_entry(), check_and_repair()), it does not happen when Maria's
Recovery internally opens the table to apply log records to it, which is
good. It would happen only after Recovery, if the table is still
corrupted.
*/
ulonglong maria_recover_options= HA_RECOVER_NONE;
handlerton *maria_hton;
/* bits in maria_recover_options */
const char *maria_recover_names[]=
{
/*
Compared to MyISAM, "default" was renamed to "normal" as it collided with
SET var=default which sets to the var's default i.e. what happens when the
var is not set i.e. HA_RECOVER_NONE.
OFF flag is ignored.
*/
"NORMAL", "BACKUP", "FORCE", "QUICK", "OFF", NullS
};
TYPELIB maria_recover_typelib=
{
array_elements(maria_recover_names) - 1, "",
maria_recover_names, NULL
};
const char *maria_stats_method_names[]=
{
"nulls_unequal", "nulls_equal",
"nulls_ignored", NullS
};
TYPELIB maria_stats_method_typelib=
{
array_elements(maria_stats_method_names) - 1, "",
maria_stats_method_names, NULL
};
/* transactions log purge mode */
const char *maria_translog_purge_type_names[]=
{
"immediate", "external", "at_flush", NullS
};
TYPELIB maria_translog_purge_type_typelib=
{
array_elements(maria_translog_purge_type_names) - 1, "",
maria_translog_purge_type_names, NULL
};
/* transactional log directory sync */
const char *maria_sync_log_dir_names[]=
{
"NEVER", "NEWFILE", "ALWAYS", NullS
};
TYPELIB maria_sync_log_dir_typelib=
{
array_elements(maria_sync_log_dir_names) - 1, "",
maria_sync_log_dir_names, NULL
};
/* transactional log group commit */
const char *maria_group_commit_names[]=
{
"none", "hard", "soft", NullS
};
TYPELIB maria_group_commit_typelib=
{
array_elements(maria_group_commit_names) - 1, "",
maria_group_commit_names, NULL
};
/** Interval between background checkpoints in seconds */
static ulong checkpoint_interval;
static void update_checkpoint_interval(MYSQL_THD thd,
struct st_mysql_sys_var *var,
void *var_ptr, const void *save);
static void update_maria_group_commit(MYSQL_THD thd,
struct st_mysql_sys_var *var,
void *var_ptr, const void *save);
static void update_maria_group_commit_interval(MYSQL_THD thd,
struct st_mysql_sys_var *var,
void *var_ptr, const void *save);
/** After that many consecutive recovery failures, remove logs */
static ulong force_start_after_recovery_failures;
static void update_log_file_size(MYSQL_THD thd,
struct st_mysql_sys_var *var,
void *var_ptr, const void *save);
static MYSQL_SYSVAR_ULONG(block_size, maria_block_size,
PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
"Block size to be used for Aria index pages.", 0, 0,
MARIA_KEY_BLOCK_LENGTH, MARIA_MIN_KEY_BLOCK_LENGTH,
MARIA_MAX_KEY_BLOCK_LENGTH, MARIA_MIN_KEY_BLOCK_LENGTH);
static MYSQL_SYSVAR_ULONG(checkpoint_interval, checkpoint_interval,
PLUGIN_VAR_RQCMDARG,
"Interval between tries to do an automatic checkpoints. In seconds; 0 means"
" 'no automatic checkpoints' which makes sense only for testing.",
NULL, update_checkpoint_interval, 30, 0, UINT_MAX, 1);
static MYSQL_SYSVAR_ULONG(checkpoint_log_activity, maria_checkpoint_min_log_activity,
PLUGIN_VAR_RQCMDARG,
"Number of bytes that the transaction log has to grow between checkpoints before a new "
"checkpoint is written to the log.",
NULL, NULL, 1024*1024, 0, UINT_MAX, 1);
static MYSQL_SYSVAR_ULONG(force_start_after_recovery_failures,
force_start_after_recovery_failures,
/*
Read-only because setting it on the fly has no useful effect,
should be set on command-line.
*/
PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
"Number of consecutive log recovery failures after which logs will be"
" automatically deleted to cure the problem; 0 (the default) disables"
" the feature.", NULL, NULL, 0, 0, UINT_MAX8, 1);
static MYSQL_SYSVAR_BOOL(page_checksum, maria_page_checksums, 0,
"Maintain page checksums (can be overridden per table "
"with PAGE_CHECKSUM clause in CREATE TABLE)", 0, 0, 1);
/* It is only command line argument */
static MYSQL_SYSVAR_STR(log_dir_path, maria_data_root,
PLUGIN_VAR_NOSYSVAR | PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
"Path to the directory where to store transactional log",
NULL, NULL, mysql_real_data_home);
static MYSQL_SYSVAR_ULONG(log_file_size, log_file_size,
PLUGIN_VAR_RQCMDARG,
"Limit for transaction log size",
NULL, update_log_file_size, TRANSLOG_FILE_SIZE,
TRANSLOG_MIN_FILE_SIZE, 0xffffffffL, TRANSLOG_PAGE_SIZE);
static MYSQL_SYSVAR_ENUM(group_commit, maria_group_commit,
PLUGIN_VAR_RQCMDARG,
"Specifies Aria group commit mode. "
"Possible values are \"none\" (no group commit), "
"\"hard\" (with waiting to actual commit), "
"\"soft\" (no wait for commit (DANGEROUS!!!))",
NULL, update_maria_group_commit,
TRANSLOG_GCOMMIT_NONE, &maria_group_commit_typelib);
static MYSQL_SYSVAR_ULONG(group_commit_interval, maria_group_commit_interval,
PLUGIN_VAR_RQCMDARG,
"Interval between commite in microseconds (1/1000000c)."
" 0 stands for no waiting"
" for other threads to come and do a commit in \"hard\" mode and no"
" sync()/commit at all in \"soft\" mode. Option has only an effect"
" if aria_group_commit is used",
NULL, update_maria_group_commit_interval, 0, 0, UINT_MAX, 1);
static MYSQL_SYSVAR_ENUM(log_purge_type, log_purge_type,
PLUGIN_VAR_RQCMDARG,
"Specifies how Aria transactional log will be purged. "
"Possible values of name are \"immediate\", \"external\" "
"and \"at_flush\"",
NULL, NULL, TRANSLOG_PURGE_IMMIDIATE,
&maria_translog_purge_type_typelib);
static MYSQL_SYSVAR_ULONGLONG(max_sort_file_size,
maria_max_temp_length, PLUGIN_VAR_RQCMDARG,
"Don't use the fast sort index method to created index if the "
"temporary file would get bigger than this.",
0, 0, MAX_FILE_SIZE & ~((ulonglong) (1*MB-1)),
0, MAX_FILE_SIZE, 1*MB);
static MYSQL_SYSVAR_ULONG(pagecache_age_threshold,
pagecache_age_threshold, PLUGIN_VAR_RQCMDARG,
"This characterizes the number of hits a hot block has to be untouched "
"until it is considered aged enough to be downgraded to a warm block. "
"This specifies the percentage ratio of that number of hits to the "
"total number of blocks in the page cache.", 0, 0,
300, 100, ~ (ulong) 0L, 100);
static MYSQL_SYSVAR_ULONGLONG(pagecache_buffer_size, pagecache_buffer_size,
PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
"The size of the buffer used for index blocks for Aria tables. "
"Increase this to get better index handling (for all reads and "
"multiple writes) to as much as you can afford.", 0, 0,
KEY_CACHE_SIZE, 8192*16L, ~(ulonglong) 0, 1);
static MYSQL_SYSVAR_ULONG(pagecache_division_limit, pagecache_division_limit,
PLUGIN_VAR_RQCMDARG,
"The minimum percentage of warm blocks in key cache", 0, 0,
100, 1, 100, 1);
static MYSQL_SYSVAR_ULONG(pagecache_file_hash_size, pagecache_file_hash_size,
PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
"Number of hash buckets for open and changed files. If you have a lot of Aria "
"files open you should increase this for faster flush of changes. A good "
"value is probably 1/10 of number of possible open Aria files.", 0,0,
512, 128, 16384, 1);
static MYSQL_SYSVAR_SET(recover, maria_recover_options, PLUGIN_VAR_OPCMDARG,
"Specifies how corrupted tables should be automatically repaired."
" Possible values are one or more of \"NORMAL\" (the default), "
"\"BACKUP\", \"FORCE\", or \"QUICK\".",
NULL, NULL, HA_RECOVER_DEFAULT, &maria_recover_typelib);
static MYSQL_THDVAR_ULONG(repair_threads, PLUGIN_VAR_RQCMDARG,
"Number of threads to use when repairing Aria tables. The value of 1 "
"disables parallel repair.",
0, 0, 1, 1, 128, 1);
static MYSQL_THDVAR_ULONGLONG(sort_buffer_size, PLUGIN_VAR_RQCMDARG,
"The buffer that is allocated when sorting the index when doing a "
"REPAIR or when creating indexes with CREATE INDEX or ALTER TABLE.", NULL, NULL,
SORT_BUFFER_INIT, MIN_SORT_BUFFER, SIZE_T_MAX, 1);
static MYSQL_THDVAR_ENUM(stats_method, PLUGIN_VAR_RQCMDARG,
"Specifies how Aria index statistics collection code should treat "
"NULLs. Possible values are \"nulls_unequal\", \"nulls_equal\", "
"and \"nulls_ignored\".", 0, 0, 0, &maria_stats_method_typelib);
static MYSQL_SYSVAR_ENUM(sync_log_dir, sync_log_dir, PLUGIN_VAR_RQCMDARG,
"Controls syncing directory after log file growth and new file "
"creation. Possible values are \"never\", \"newfile\" and "
"\"always\").", NULL, NULL, TRANSLOG_SYNC_DIR_NEWFILE,
&maria_sync_log_dir_typelib);
#ifdef USE_ARIA_FOR_TMP_TABLES
#define USE_ARIA_FOR_TMP_TABLES_VAL 1
#else
#define USE_ARIA_FOR_TMP_TABLES_VAL 0
#endif
my_bool use_maria_for_temp_tables= USE_ARIA_FOR_TMP_TABLES_VAL;
static MYSQL_SYSVAR_BOOL(used_for_temp_tables,
use_maria_for_temp_tables, PLUGIN_VAR_READONLY | PLUGIN_VAR_NOCMDOPT,
"Whether temporary tables should be MyISAM or Aria", 0, 0,
1);
#ifdef HAVE_PSI_INTERFACE
static PSI_mutex_info all_aria_mutexes[]=
{
{ &key_THR_LOCK_maria, "THR_LOCK_maria", PSI_FLAG_GLOBAL},
{ &key_LOCK_soft_sync, "LOCK_soft_sync", PSI_FLAG_GLOBAL},
{ &key_LOCK_trn_list, "LOCK_trn_list", PSI_FLAG_GLOBAL},
{ &key_SHARE_BITMAP_lock, "SHARE::bitmap::bitmap_lock", 0},
{ &key_SORT_INFO_mutex, "SORT_INFO::mutex", 0},
{ &key_TRANSLOG_BUFFER_mutex, "TRANSLOG_BUFFER::mutex", 0},
{ &key_TRANSLOG_DESCRIPTOR_dirty_buffer_mask_lock, "TRANSLOG_DESCRIPTOR::dirty_buffer_mask_lock", 0},
{ &key_TRANSLOG_DESCRIPTOR_sent_to_disk_lock, "TRANSLOG_DESCRIPTOR::sent_to_disk_lock", 0},
{ &key_TRANSLOG_DESCRIPTOR_log_flush_lock, "TRANSLOG_DESCRIPTOR::log_flush_lock", 0},
{ &key_TRANSLOG_DESCRIPTOR_file_header_lock, "TRANSLOG_DESCRIPTOR::file_header_lock", 0},
{ &key_TRANSLOG_DESCRIPTOR_unfinished_files_lock, "TRANSLOG_DESCRIPTOR::unfinished_files_lock", 0},
{ &key_TRANSLOG_DESCRIPTOR_purger_lock, "TRANSLOG_DESCRIPTOR::purger_lock", 0},
{ &key_SHARE_intern_lock, "SHARE::intern_lock", 0},
{ &key_SHARE_key_del_lock, "SHARE::key_del_lock", 0},
{ &key_SHARE_close_lock, "SHARE::close_lock", 0},
{ &key_SERVICE_THREAD_CONTROL_lock, "SERVICE_THREAD_CONTROL::LOCK_control", 0},
{ &key_TRN_state_lock, "TRN::state_lock", 0},
{ &key_PAGECACHE_cache_lock, "PAGECACHE::cache_lock", 0}
};
static PSI_cond_info all_aria_conds[]=
{
{ &key_COND_soft_sync, "COND_soft_sync", PSI_FLAG_GLOBAL},
{ &key_SHARE_key_del_cond, "SHARE::key_del_cond", 0},
{ &key_SERVICE_THREAD_CONTROL_cond, "SERVICE_THREAD_CONTROL::COND_control", 0},
{ &key_SORT_INFO_cond, "SORT_INFO::cond", 0},
{ &key_SHARE_BITMAP_cond, "BITMAP::bitmap_cond", 0},
{ &key_TRANSLOG_BUFFER_waiting_filling_buffer, "TRANSLOG_BUFFER::waiting_filling_buffer", 0},
{ &key_TRANSLOG_BUFFER_prev_sent_to_disk_cond, "TRANSLOG_BUFFER::prev_sent_to_disk_cond", 0},
{ &key_TRANSLOG_DESCRIPTOR_log_flush_cond, "TRANSLOG_DESCRIPTOR::log_flush_cond", 0},
{ &key_TRANSLOG_DESCRIPTOR_new_goal_cond, "TRANSLOG_DESCRIPTOR::new_goal_cond", 0}
};
static PSI_rwlock_info all_aria_rwlocks[]=
{
{ &key_KEYINFO_root_lock, "KEYINFO::root_lock", 0},
{ &key_SHARE_mmap_lock, "SHARE::mmap_lock", 0},
{ &key_TRANSLOG_DESCRIPTOR_open_files_lock, "TRANSLOG_DESCRIPTOR::open_files_lock", 0}
};
static PSI_thread_info all_aria_threads[]=
{
{ &key_thread_checkpoint, "checkpoint_background", PSI_FLAG_GLOBAL},
{ &key_thread_soft_sync, "soft_sync_background", PSI_FLAG_GLOBAL},
{ &key_thread_find_all_keys, "thr_find_all_keys", 0}
};
static PSI_file_info all_aria_files[]=
{
{ &key_file_translog, "translog", 0},
{ &key_file_kfile, "MAI", 0},
{ &key_file_dfile, "MAD", 0},
{ &key_file_control, "control", PSI_FLAG_GLOBAL}
};
static PSI_stage_info *all_aria_stages[]=
{
& stage_waiting_for_a_resource
};
static void init_aria_psi_keys(void)
{
const char* category= "aria";
int count;
count= array_elements(all_aria_mutexes);
mysql_mutex_register(category, all_aria_mutexes, count);
count= array_elements(all_aria_rwlocks);
mysql_rwlock_register(category, all_aria_rwlocks, count);
count= array_elements(all_aria_conds);
mysql_cond_register(category, all_aria_conds, count);
count= array_elements(all_aria_threads);
mysql_thread_register(category, all_aria_threads, count);
count= array_elements(all_aria_files);
mysql_file_register(category, all_aria_files, count);
count= array_elements(all_aria_stages);
mysql_stage_register(category, all_aria_stages, count);
}
#else
#define init_aria_psi_keys() /* no-op */
#endif /* HAVE_PSI_INTERFACE */
/*****************************************************************************
** MARIA tables
*****************************************************************************/
static handler *maria_create_handler(handlerton *hton,
TABLE_SHARE * table,
MEM_ROOT *mem_root)
{
return new (mem_root) ha_maria(hton, table);
}
// collect errors printed by maria_check routines
static void _ma_check_print_msg(HA_CHECK *param, const char *msg_type,
const char *fmt, va_list args)
{
THD *thd= (THD *) param->thd;
Protocol *protocol= thd->protocol;
uint length, msg_length;
char msgbuf[MYSQL_ERRMSG_SIZE];
char name[NAME_LEN * 2 + 2];
if (param->testflag & T_SUPPRESS_ERR_HANDLING)
return;
msg_length= my_vsnprintf(msgbuf, sizeof(msgbuf), fmt, args);
msgbuf[sizeof(msgbuf) - 1]= 0; // healthy paranoia
DBUG_PRINT(msg_type, ("message: %s", msgbuf));
if (!thd->vio_ok())
{
sql_print_error("%s.%s: %s", param->db_name, param->table_name, msgbuf);
return;
}
if (param->testflag &
(T_CREATE_MISSING_KEYS | T_SAFE_REPAIR | T_AUTO_REPAIR))
{
my_message(ER_NOT_KEYFILE, msgbuf, MYF(MY_WME));
if (thd->variables.log_warnings > 2)
sql_print_error("%s.%s: %s", param->db_name, param->table_name, msgbuf);
return;
}
length= (uint) (strxmov(name, param->db_name, ".", param->table_name,
NullS) - name);
/*
TODO: switch from protocol to push_warning here. The main reason we didn't
it yet is parallel repair. Due to following trace:
ma_check_print_msg/push_warning/sql_alloc/my_pthread_getspecific_ptr.
Also we likely need to lock mutex here (in both cases with protocol and
push_warning).
*/
protocol->prepare_for_resend();
protocol->store(name, length, system_charset_info);
protocol->store(param->op_name, system_charset_info);
protocol->store(msg_type, system_charset_info);
protocol->store(msgbuf, msg_length, system_charset_info);
if (protocol->write())
sql_print_error("Failed on my_net_write, writing to stderr instead: %s.%s: %s\n",
param->db_name, param->table_name, msgbuf);
else if (thd->variables.log_warnings > 2)
sql_print_error("%s.%s: %s", param->db_name, param->table_name, msgbuf);
return;
}
/*
Convert TABLE object to Maria key and column definition
SYNOPSIS
table2maria()
table_arg in TABLE object.
keydef_out out Maria key definition.
recinfo_out out Maria column definition.
records_out out Number of fields.
DESCRIPTION
This function will allocate and initialize Maria key and column
definition for further use in ma_create or for a check for underlying
table conformance in merge engine.
The caller needs to free *recinfo_out after use. Since *recinfo_out
and *keydef_out are allocated with a my_multi_malloc, *keydef_out
is freed automatically when *recinfo_out is freed.
RETURN VALUE
0 OK
# error code
*/
static int table2maria(TABLE *table_arg, data_file_type row_type,
MARIA_KEYDEF **keydef_out,
MARIA_COLUMNDEF **recinfo_out, uint *records_out,
MARIA_CREATE_INFO *create_info)
{
uint i, j, recpos, minpos, fieldpos, temp_length, length;
enum ha_base_keytype type= HA_KEYTYPE_BINARY;
uchar *record;
KEY *pos;
MARIA_KEYDEF *keydef;
MARIA_COLUMNDEF *recinfo, *recinfo_pos;
HA_KEYSEG *keyseg;
TABLE_SHARE *share= table_arg->s;
uint options= share->db_options_in_use;
DBUG_ENTER("table2maria");
if (row_type == BLOCK_RECORD)
options|= HA_OPTION_PACK_RECORD;
if (!(my_multi_malloc(MYF(MY_WME),
recinfo_out, (share->fields * 2 + 2) * sizeof(MARIA_COLUMNDEF),
keydef_out, share->keys * sizeof(MARIA_KEYDEF),
&keyseg,
(share->key_parts + share->keys) * sizeof(HA_KEYSEG),
NullS)))
DBUG_RETURN(HA_ERR_OUT_OF_MEM); /* purecov: inspected */
keydef= *keydef_out;
recinfo= *recinfo_out;
pos= table_arg->key_info;
for (i= 0; i < share->keys; i++, pos++)
{
keydef[i].flag= (uint16) (pos->flags & (HA_NOSAME | HA_FULLTEXT |
HA_SPATIAL));
keydef[i].key_alg= pos->algorithm == HA_KEY_ALG_UNDEF ?
(pos->flags & HA_SPATIAL ? HA_KEY_ALG_RTREE : HA_KEY_ALG_BTREE) :
pos->algorithm;
keydef[i].block_length= pos->block_size;
keydef[i].seg= keyseg;
keydef[i].keysegs= pos->user_defined_key_parts;
for (j= 0; j < pos->user_defined_key_parts; j++)
{
Field *field= pos->key_part[j].field;
type= field->key_type();
keydef[i].seg[j].flag= pos->key_part[j].key_part_flag;
if (options & HA_OPTION_PACK_KEYS ||
(pos->flags & (HA_PACK_KEY | HA_BINARY_PACK_KEY |
HA_SPACE_PACK_USED)))
{
if (pos->key_part[j].length > 8 &&
(type == HA_KEYTYPE_TEXT ||
type == HA_KEYTYPE_NUM ||
(type == HA_KEYTYPE_BINARY && !field->zero_pack())))
{
/* No blobs here */
if (j == 0)
keydef[i].flag|= HA_PACK_KEY;
if (!(field->flags & ZEROFILL_FLAG) &&
(field->type() == MYSQL_TYPE_STRING ||
field->type() == MYSQL_TYPE_VAR_STRING ||
((int) (pos->key_part[j].length - field->decimals())) >= 4))
keydef[i].seg[j].flag|= HA_SPACE_PACK;
}
else if (j == 0 && (!(pos->flags & HA_NOSAME) || pos->key_length > 16))
keydef[i].flag|= HA_BINARY_PACK_KEY;
}
keydef[i].seg[j].type= (int) type;
keydef[i].seg[j].start= pos->key_part[j].offset;
keydef[i].seg[j].length= pos->key_part[j].length;
keydef[i].seg[j].bit_start= keydef[i].seg[j].bit_end=
keydef[i].seg[j].bit_length= 0;
keydef[i].seg[j].bit_pos= 0;
keydef[i].seg[j].language= field->charset()->number;
if (field->null_ptr)
{
keydef[i].seg[j].null_bit= field->null_bit;
keydef[i].seg[j].null_pos= (uint) (field->null_ptr-
(uchar*) table_arg->record[0]);
}
else
{
keydef[i].seg[j].null_bit= 0;
keydef[i].seg[j].null_pos= 0;
}
if (field->type() == MYSQL_TYPE_BLOB ||
field->type() == MYSQL_TYPE_GEOMETRY)
{
keydef[i].seg[j].flag|= HA_BLOB_PART;
/* save number of bytes used to pack length */
keydef[i].seg[j].bit_start= (uint) (field->pack_length() -
portable_sizeof_char_ptr);
}
else if (field->type() == MYSQL_TYPE_BIT)
{
keydef[i].seg[j].bit_length= ((Field_bit *) field)->bit_len;
keydef[i].seg[j].bit_start= ((Field_bit *) field)->bit_ofs;
keydef[i].seg[j].bit_pos= (uint) (((Field_bit *) field)->bit_ptr -
(uchar*) table_arg->record[0]);
}
}
keyseg+= pos->user_defined_key_parts;
}
if (table_arg->found_next_number_field)
keydef[share->next_number_index].flag|= HA_AUTO_KEY;
record= table_arg->record[0];
recpos= 0;
recinfo_pos= recinfo;
create_info->null_bytes= table_arg->s->null_bytes;
while (recpos < (uint) share->stored_rec_length)
{
Field **field, *found= 0;
minpos= share->reclength;
length= 0;
for (field= table_arg->field; *field; field++)
{
if ((fieldpos= (*field)->offset(record)) >= recpos &&
fieldpos <= minpos)
{
/* skip null fields */
if (!(temp_length= (*field)->pack_length_in_rec()))
continue; /* Skip null-fields */
if (! found || fieldpos < minpos ||
(fieldpos == minpos && temp_length < length))
{
minpos= fieldpos;
found= *field;
length= temp_length;
}
}
}
DBUG_PRINT("loop", ("found: 0x%lx recpos: %d minpos: %d length: %d",
(long) found, recpos, minpos, length));
if (!found)
break;
if (found->flags & BLOB_FLAG)
recinfo_pos->type= FIELD_BLOB;
else if (found->type() == MYSQL_TYPE_TIMESTAMP)
recinfo_pos->type= FIELD_NORMAL;
else if (found->type() == MYSQL_TYPE_VARCHAR)
recinfo_pos->type= FIELD_VARCHAR;
else if (!(options & HA_OPTION_PACK_RECORD) ||
(found->zero_pack() && (found->flags & PRI_KEY_FLAG)))
recinfo_pos->type= FIELD_NORMAL;
else if (found->zero_pack())
recinfo_pos->type= FIELD_SKIP_ZERO;
else
recinfo_pos->type= ((length <= 3 ||
(found->flags & ZEROFILL_FLAG)) ?
FIELD_NORMAL :
found->type() == MYSQL_TYPE_STRING ||
found->type() == MYSQL_TYPE_VAR_STRING ?
FIELD_SKIP_ENDSPACE :
FIELD_SKIP_PRESPACE);
if (found->null_ptr)
{
recinfo_pos->null_bit= found->null_bit;
recinfo_pos->null_pos= (uint) (found->null_ptr -
(uchar*) table_arg->record[0]);
}
else
{
recinfo_pos->null_bit= 0;
recinfo_pos->null_pos= 0;
}
(recinfo_pos++)->length= (uint16) length;
recpos= minpos + length;
DBUG_PRINT("loop", ("length: %d type: %d",
recinfo_pos[-1].length,recinfo_pos[-1].type));
}
*records_out= (uint) (recinfo_pos - recinfo);
DBUG_RETURN(0);
}
/*
Check for underlying table conformance
SYNOPSIS
maria_check_definition()
t1_keyinfo in First table key definition
t1_recinfo in First table record definition
t1_keys in Number of keys in first table
t1_recs in Number of records in first table
t2_keyinfo in Second table key definition
t2_recinfo in Second table record definition
t2_keys in Number of keys in second table
t2_recs in Number of records in second table
strict in Strict check switch
DESCRIPTION
This function compares two Maria definitions. By intention it was done
to compare merge table definition against underlying table definition.
It may also be used to compare dot-frm and MAI definitions of Maria
table as well to compare different Maria table definitions.
For merge table it is not required that number of keys in merge table
must exactly match number of keys in underlying table. When calling this
function for underlying table conformance check, 'strict' flag must be
set to false, and converted merge definition must be passed as t1_*.
Otherwise 'strict' flag must be set to 1 and it is not required to pass
converted dot-frm definition as t1_*.
RETURN VALUE
0 - Equal definitions.
1 - Different definitions.
TODO
- compare FULLTEXT keys;
- compare SPATIAL keys;
- compare FIELD_SKIP_ZERO which is converted to FIELD_NORMAL correctly
(should be correctly detected in table2maria).
*/
int maria_check_definition(MARIA_KEYDEF *t1_keyinfo,
MARIA_COLUMNDEF *t1_recinfo,
uint t1_keys, uint t1_recs,
MARIA_KEYDEF *t2_keyinfo,
MARIA_COLUMNDEF *t2_recinfo,
uint t2_keys, uint t2_recs, bool strict)
{
uint i, j;
DBUG_ENTER("maria_check_definition");
if ((strict ? t1_keys != t2_keys : t1_keys > t2_keys))
{
DBUG_PRINT("error", ("Number of keys differs: t1_keys=%u, t2_keys=%u",
t1_keys, t2_keys));
DBUG_RETURN(1);
}
if (t1_recs != t2_recs)
{
DBUG_PRINT("error", ("Number of recs differs: t1_recs=%u, t2_recs=%u",
t1_recs, t2_recs));
DBUG_RETURN(1);
}
for (i= 0; i < t1_keys; i++)
{
HA_KEYSEG *t1_keysegs= t1_keyinfo[i].seg;
HA_KEYSEG *t2_keysegs= t2_keyinfo[i].seg;
if (t1_keyinfo[i].flag & HA_FULLTEXT && t2_keyinfo[i].flag & HA_FULLTEXT)
continue;
else if (t1_keyinfo[i].flag & HA_FULLTEXT ||
t2_keyinfo[i].flag & HA_FULLTEXT)
{
DBUG_PRINT("error", ("Key %d has different definition", i));
DBUG_PRINT("error", ("t1_fulltext= %d, t2_fulltext=%d",
MY_TEST(t1_keyinfo[i].flag & HA_FULLTEXT),
MY_TEST(t2_keyinfo[i].flag & HA_FULLTEXT)));
DBUG_RETURN(1);
}
if (t1_keyinfo[i].flag & HA_SPATIAL && t2_keyinfo[i].flag & HA_SPATIAL)
continue;
else if (t1_keyinfo[i].flag & HA_SPATIAL ||
t2_keyinfo[i].flag & HA_SPATIAL)
{
DBUG_PRINT("error", ("Key %d has different definition", i));
DBUG_PRINT("error", ("t1_spatial= %d, t2_spatial=%d",
MY_TEST(t1_keyinfo[i].flag & HA_SPATIAL),
MY_TEST(t2_keyinfo[i].flag & HA_SPATIAL)));
DBUG_RETURN(1);
}
if (t1_keyinfo[i].keysegs != t2_keyinfo[i].keysegs ||
t1_keyinfo[i].key_alg != t2_keyinfo[i].key_alg)
{
DBUG_PRINT("error", ("Key %d has different definition", i));
DBUG_PRINT("error", ("t1_keysegs=%d, t1_key_alg=%d",
t1_keyinfo[i].keysegs, t1_keyinfo[i].key_alg));
DBUG_PRINT("error", ("t2_keysegs=%d, t2_key_alg=%d",
t2_keyinfo[i].keysegs, t2_keyinfo[i].key_alg));
DBUG_RETURN(1);
}
for (j= t1_keyinfo[i].keysegs; j--;)
{
uint8 t1_keysegs_j__type= t1_keysegs[j].type;
/*
Table migration from 4.1 to 5.1. In 5.1 a *TEXT key part is
always HA_KEYTYPE_VARTEXT2. In 4.1 we had only the equivalent of
HA_KEYTYPE_VARTEXT1. Since we treat both the same on MyISAM
level, we can ignore a mismatch between these types.
*/
if ((t1_keysegs[j].flag & HA_BLOB_PART) &&
(t2_keysegs[j].flag & HA_BLOB_PART))
{
if ((t1_keysegs_j__type == HA_KEYTYPE_VARTEXT2) &&
(t2_keysegs[j].type == HA_KEYTYPE_VARTEXT1))
t1_keysegs_j__type= HA_KEYTYPE_VARTEXT1; /* purecov: tested */
else if ((t1_keysegs_j__type == HA_KEYTYPE_VARBINARY2) &&
(t2_keysegs[j].type == HA_KEYTYPE_VARBINARY1))
t1_keysegs_j__type= HA_KEYTYPE_VARBINARY1; /* purecov: inspected */
}
if (t1_keysegs_j__type != t2_keysegs[j].type ||
t1_keysegs[j].language != t2_keysegs[j].language ||
t1_keysegs[j].null_bit != t2_keysegs[j].null_bit ||
t1_keysegs[j].length != t2_keysegs[j].length)
{
DBUG_PRINT("error", ("Key segment %d (key %d) has different "
"definition", j, i));
DBUG_PRINT("error", ("t1_type=%d, t1_language=%d, t1_null_bit=%d, "
"t1_length=%d",
t1_keysegs[j].type, t1_keysegs[j].language,
t1_keysegs[j].null_bit, t1_keysegs[j].length));
DBUG_PRINT("error", ("t2_type=%d, t2_language=%d, t2_null_bit=%d, "
"t2_length=%d",
t2_keysegs[j].type, t2_keysegs[j].language,
t2_keysegs[j].null_bit, t2_keysegs[j].length));
DBUG_RETURN(1);
}
}
}
for (i= 0; i < t1_recs; i++)
{
MARIA_COLUMNDEF *t1_rec= &t1_recinfo[i];
MARIA_COLUMNDEF *t2_rec= &t2_recinfo[i];
/*
FIELD_SKIP_ZERO can be changed to FIELD_NORMAL in maria_create,
see NOTE1 in ma_create.c
*/
if ((t1_rec->type != t2_rec->type &&
!(t1_rec->type == (int) FIELD_SKIP_ZERO &&
t1_rec->length == 1 &&
t2_rec->type == (int) FIELD_NORMAL)) ||
t1_rec->length != t2_rec->length ||
t1_rec->null_bit != t2_rec->null_bit)
{
DBUG_PRINT("error", ("Field %d has different definition", i));
DBUG_PRINT("error", ("t1_type=%d, t1_length=%d, t1_null_bit=%d",
t1_rec->type, t1_rec->length, t1_rec->null_bit));
DBUG_PRINT("error", ("t2_type=%d, t2_length=%d, t2_null_bit=%d",
t2_rec->type, t2_rec->length, t2_rec->null_bit));
DBUG_RETURN(1);
}
}
DBUG_RETURN(0);
}
extern "C" {
int _ma_killed_ptr(HA_CHECK *param)
{
return thd_killed((THD*)param->thd);
}
/*
Report progress to mysqld
This is a bit more complex than what a normal progress report
function normally is.
The reason is that this is called by enable_index/repair which
is one stage in ALTER TABLE and we can't use the external
stage/max_stage for this.
thd_progress_init/thd_progress_next_stage is to be called by
high level commands like CHECK TABLE or REPAIR TABLE, not
by sub commands like enable_index().
In ma_check.c it's easier to work with stages than with a total
progress, so we use internal stage/max_stage here to keep the
code simple.
*/
void _ma_report_progress(HA_CHECK *param, ulonglong progress,
ulonglong max_progress)
{
thd_progress_report((THD*)param->thd,
progress + max_progress * param->stage,
max_progress * param->max_stage);
}
void _ma_check_print_error(HA_CHECK *param, const char *fmt, ...)
{
va_list args;
DBUG_ENTER("_ma_check_print_error");
param->error_printed |= 1;
param->out_flag |= O_DATA_LOST;
if (param->testflag & T_SUPPRESS_ERR_HANDLING)
DBUG_VOID_RETURN;
va_start(args, fmt);
_ma_check_print_msg(param, "error", fmt, args);
va_end(args);
DBUG_VOID_RETURN;
}
void _ma_check_print_info(HA_CHECK *param, const char *fmt, ...)
{
va_list args;
DBUG_ENTER("_ma_check_print_info");
va_start(args, fmt);
_ma_check_print_msg(param, "info", fmt, args);
va_end(args);
DBUG_VOID_RETURN;
}
void _ma_check_print_warning(HA_CHECK *param, const char *fmt, ...)
{
va_list args;
DBUG_ENTER("_ma_check_print_warning");
param->warning_printed= 1;
param->out_flag |= O_DATA_LOST;
va_start(args, fmt);
_ma_check_print_msg(param, "warning", fmt, args);
va_end(args);
DBUG_VOID_RETURN;
}
/*
Create a transaction object
SYNOPSIS
info Maria handler
RETURN
0 ok
# Error number (HA_ERR_OUT_OF_MEM)
*/
static int maria_create_trn_for_mysql(MARIA_HA *info)
{
THD *thd= ((TABLE*) info->external_ref)->in_use;
TRN *trn= THD_TRN;
DBUG_ENTER("maria_create_trn_for_mysql");
if (!trn) /* no transaction yet - open it now */
{
trn= trnman_new_trn(& thd->transaction.wt);
if (unlikely(!trn))
DBUG_RETURN(HA_ERR_OUT_OF_MEM);
THD_TRN= trn;
if (thd->variables.option_bits & (OPTION_NOT_AUTOCOMMIT | OPTION_BEGIN))
trans_register_ha(thd, TRUE, maria_hton);
}
_ma_set_trn_for_table(info, trn);
if (!trnman_increment_locked_tables(trn))
{
trans_register_ha(thd, FALSE, maria_hton);
trnman_new_statement(trn);
}
#ifdef EXTRA_DEBUG
if (info->lock_type == F_WRLCK &&
! (trnman_get_flags(trn) & TRN_STATE_INFO_LOGGED))
{
trnman_set_flags(trn, trnman_get_flags(trn) | TRN_STATE_INFO_LOGGED |
TRN_STATE_TABLES_CAN_CHANGE);
(void) translog_log_debug_info(trn, LOGREC_DEBUG_INFO_QUERY,
(uchar*) thd->query(),
thd->query_length());
}
else
{
DBUG_PRINT("info", ("lock_type: %d trnman_flags: %u",
info->lock_type, trnman_get_flags(trn)));
}
#endif
DBUG_RETURN(0);
}
my_bool ma_killed_in_mariadb(MARIA_HA *info)
{
return (((TABLE*) (info->external_ref))->in_use->killed != 0);
}
} /* extern "C" */
/**
Transactional table doing bulk insert with one single UNDO
(UNDO_BULK_INSERT) and with repair.
*/
#define BULK_INSERT_SINGLE_UNDO_AND_REPAIR 1
/**
Transactional table doing bulk insert with one single UNDO
(UNDO_BULK_INSERT) and without repair.
*/
#define BULK_INSERT_SINGLE_UNDO_AND_NO_REPAIR 2
/**
None of BULK_INSERT_SINGLE_UNDO_AND_REPAIR and
BULK_INSERT_SINGLE_UNDO_AND_NO_REPAIR.
*/
#define BULK_INSERT_NONE 0
ha_maria::ha_maria(handlerton *hton, TABLE_SHARE *table_arg):
handler(hton, table_arg), file(0),
int_table_flags(HA_NULL_IN_KEY | HA_CAN_FULLTEXT | HA_CAN_SQL_HANDLER |
HA_BINLOG_ROW_CAPABLE | HA_BINLOG_STMT_CAPABLE |
HA_DUPLICATE_POS | HA_CAN_INDEX_BLOBS | HA_AUTO_PART_KEY |
HA_FILE_BASED | HA_CAN_GEOMETRY | CANNOT_ROLLBACK_FLAG |
HA_CAN_BIT_FIELD | HA_CAN_RTREEKEYS | HA_CAN_REPAIR |
HA_CAN_VIRTUAL_COLUMNS | HA_CAN_EXPORT |
HA_HAS_RECORDS | HA_STATS_RECORDS_IS_EXACT),
can_enable_indexes(1), bulk_insert_single_undo(BULK_INSERT_NONE)
{}
handler *ha_maria::clone(const char *name, MEM_ROOT *mem_root)
{
ha_maria *new_handler= static_cast <ha_maria *>(handler::clone(name,
mem_root));
if (new_handler)
{
new_handler->file->state= file->state;
/* maria_create_trn_for_mysql() is never called for clone() tables */
new_handler->file->trn= file->trn;
}
return new_handler;
}