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cleanup of ha_myisam::deactivate_non_unique_index() and Co.

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unknown 2004-04-02 20:42:35 +02:00
parent 7c27065c3e
commit a66fe8dcd5
6 changed files with 26 additions and 37 deletions
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20
myisam/mi_check.c
View File

@ -3966,18 +3966,18 @@ static my_bool mi_too_big_key_for_sort(MI_KEYDEF *key, ha_rows rows)
void mi_disable_non_unique_index(MI_INFO *info, ha_rows rows)
{
MYISAM_SHARE *share=info->s;
uint i;
if (!info->state->records) /* Don't do this if old rows */
MI_KEYDEF *key=share->keyinfo;
uint i;
DBUG_ASSERT(info->state->records == 0 &&
(!rows || rows >= MI_MIN_ROWS_TO_DISABLE_INDEXES));
for (i=0 ; i < share->base.keys ; i++,key++)
{
MI_KEYDEF *key=share->keyinfo;
for (i=0 ; i < share->base.keys ; i++,key++)
if (!(key->flag & (HA_NOSAME | HA_SPATIAL | HA_AUTO_KEY)) &&
! mi_too_big_key_for_sort(key,rows) && info->s->base.auto_key != i+1)
{
if (!(key->flag & (HA_NOSAME | HA_SPATIAL | HA_AUTO_KEY)) &&
! mi_too_big_key_for_sort(key,rows) && info->s->base.auto_key != i+1)
{
share->state.key_map&= ~ ((ulonglong) 1 << i);
info->update|= HA_STATE_CHANGED;
}
share->state.key_map&= ~ ((ulonglong) 1 << i);
info->update|= HA_STATE_CHANGED;
}
}
}

4
myisam/mi_write.c
View File

@ -916,8 +916,8 @@ int mi_init_bulk_insert(MI_INFO *info, ulong cache_size, ha_rows rows)
DBUG_ENTER("_mi_init_bulk_insert");
DBUG_PRINT("enter",("cache_size: %lu", cache_size));
if (info->bulk_insert || (rows && rows < MI_MIN_ROWS_TO_USE_BULK_INSERT))
DBUG_RETURN(0);
DBUG_ASSERT(!info->bulk_insert &&
(!rows || rows >= MI_MIN_ROWS_TO_USE_BULK_INSERT));
for (i=total_keylength=num_keys=0 ; i < share->base.keys ; i++)
{

1
myisam/myisamdef.h
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@ -416,6 +416,7 @@ typedef struct st_mi_sort_param
#define MI_MIN_SIZE_BULK_INSERT_TREE 16384 /* this is per key */
#define MI_MIN_ROWS_TO_USE_BULK_INSERT 100
#define MI_MIN_ROWS_TO_DISABLE_INDEXES 100
/* The UNIQUE check is done with a hashed long key */

33
sql/ha_myisam.cc
View File

@ -818,26 +818,19 @@ int ha_myisam::preload_keys(THD* thd, HA_CHECK_OPT *check_opt)
deactivate_non_unique_index()
rows Rows to be inserted
0 if we don't know
HA_POS_ERROR if we want to disable all keys
HA_POS_ERROR if we want to force disabling
and make it permanent (save on disk)
*/
void ha_myisam::deactivate_non_unique_index(ha_rows rows)
{
MYISAM_SHARE* share = file->s;
bool do_warning=0;
if (share->state.key_map == ((ulonglong) 1L << share->base.keys)-1)
{
if (!(specialflag & SPECIAL_SAFE_MODE))
{
if (rows == HA_POS_ERROR)
{
uint orig_update= file->update;
file->update ^= HA_STATE_CHANGED;
uint check_update= file->update;
if (rows == HA_POS_ERROR) // force disable and save it on disk!
mi_extra(file, HA_EXTRA_NO_KEYS, 0);
do_warning= (file->update == check_update) && file->state->records;
file->update= orig_update;
}
else
{
/*
@ -847,15 +840,16 @@ void ha_myisam::deactivate_non_unique_index(ha_rows rows)
we don't want to update the key statistics based of only a few rows.
*/
if (file->state->records == 0 &&
(!rows || rows >= MI_MIN_ROWS_TO_USE_BULK_INSERT))
(!rows || rows >= MI_MIN_ROWS_TO_DISABLE_INDEXES))
mi_disable_non_unique_index(file,rows);
else
if (!file->bulk_insert &&
(!rows || rows >= MI_MIN_ROWS_TO_USE_BULK_INSERT))
{
mi_init_bulk_insert(file,
current_thd->variables.bulk_insert_buff_size,
rows);
table->bulk_insert= 1;
}
current_thd->variables.bulk_insert_buff_size,
rows);
}
}
}
enable_activate_all_index=1;
@ -863,10 +857,6 @@ void ha_myisam::deactivate_non_unique_index(ha_rows rows)
}
else
enable_activate_all_index=0;
if (do_warning)
push_warning_printf(current_thd, MYSQL_ERROR::WARN_LEVEL_WARN,
ER_ILLEGAL_HA,
ER(ER_ILLEGAL_HA), table->table_name);
}
@ -878,7 +868,6 @@ bool ha_myisam::activate_all_index(THD *thd)
DBUG_ENTER("activate_all_index");
mi_end_bulk_insert(file);
table->bulk_insert= 0;
if (enable_activate_all_index &&
share->state.key_map != set_bits(ulonglong, share->base.keys))
{
@ -1393,8 +1382,8 @@ longlong ha_myisam::get_auto_increment()
return auto_increment_value;
}
if (table->bulk_insert)
mi_flush_bulk_insert(file, table->next_number_index);
/* it's safe to call the following if bulk_insert isn't on */
mi_flush_bulk_insert(file, table->next_number_index);
longlong nr;
int error;

1
sql/sql_load.cc
View File

@ -280,7 +280,6 @@ int mysql_load(THD *thd,sql_exchange *ex,TABLE_LIST *table_list,
table->next_number_field=table->found_next_number_field;
VOID(table->file->extra_opt(HA_EXTRA_WRITE_CACHE,
thd->variables.read_buff_size));
table->bulk_insert= 1;
if (handle_duplicates == DUP_IGNORE ||
handle_duplicates == DUP_REPLACE)
table->file->extra(HA_EXTRA_IGNORE_DUP_KEY);

4
sql/table.h
View File

@ -109,7 +109,7 @@ struct st_table {
my_bool maybe_null,outer_join; /* Used with OUTER JOIN */
my_bool force_index;
my_bool distinct,const_table,no_rows;
my_bool key_read, bulk_insert;
my_bool key_read;
my_bool crypted;
my_bool db_low_byte_first; /* Portable row format */
my_bool locked_by_flush;
@ -119,7 +119,7 @@ struct st_table {
my_bool is_view;
my_bool no_keyread, no_cache;
my_bool clear_query_id; /* To reset query_id for tables and cols */
my_bool auto_increment_field_not_null;
my_bool auto_increment_field_not_null;
Field *next_number_field, /* Set if next_number is activated */
*found_next_number_field, /* Set on open */
*rowid_field;