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Merge ahristov@bk-internal.mysql.com:/home/bk/mysql-5.0-maint

Browse Source 
into  example.com:/work/bug24395-v2/my50
This commit is contained in:
andrey@example.com
2006-12-02 00:30:10 +01:00
parent 94b48caf2e dec1ebf6e3
commit b5e44560f6
4 changed files with 306 additions and 5 deletions
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72
sql/sql_table.cc
View File

@ -37,7 +37,9 @@ static char *make_unique_key_name(const char *field_name,KEY *start,KEY *end);
static int copy_data_between_tables(TABLE *from,TABLE *to,
List<create_field> &create, bool ignore,
uint order_num, ORDER *order,
ha_rows *copied,ha_rows *deleted);
ha_rows *copied,ha_rows *deleted,
enum enum_enable_or_disable keys_onoff);
static bool prepare_blob_field(THD *thd, create_field *sql_field);
static bool check_engine(THD *thd, const char *table_name,
enum db_type *new_engine);
@ -2933,6 +2935,54 @@ err:
}
/*
Manages enabling/disabling of indexes for ALTER TABLE
SYNOPSIS
alter_table_manage_keys()
table Target table
indexes_were_disabled Whether the indexes of the from table
were disabled
keys_onoff ENABLE | DISABLE | LEAVE_AS_IS
RETURN VALUES
FALSE OK
TRUE Error
*/
static
bool alter_table_manage_keys(TABLE *table, int indexes_were_disabled,
enum enum_enable_or_disable keys_onoff)
{
int error= 0;
DBUG_ENTER("alter_table_manage_keys");
DBUG_PRINT("enter", ("table=%p were_disabled=%d on_off=%d",
table, indexes_were_disabled, keys_onoff));
switch (keys_onoff) {
case ENABLE:
error= table->file->enable_indexes(HA_KEY_SWITCH_NONUNIQ_SAVE);
break;
case LEAVE_AS_IS:
if (!indexes_were_disabled)
break;
/* fall-through: disabled indexes */
case DISABLE:
error= table->file->disable_indexes(HA_KEY_SWITCH_NONUNIQ_SAVE);
}
if (error == HA_ERR_WRONG_COMMAND)
{
push_warning_printf(current_thd, MYSQL_ERROR::WARN_LEVEL_NOTE,
ER_ILLEGAL_HA, ER(ER_ILLEGAL_HA), table->s->table_name);
error= 0;
} else if (error)
table->file->print_error(error, MYF(0));
DBUG_RETURN(error);
}
/*
Alter table
*/
@ -3586,8 +3636,20 @@ view_err:
new_table->timestamp_field_type= TIMESTAMP_NO_AUTO_SET;
new_table->next_number_field=new_table->found_next_number_field;
error=copy_data_between_tables(table, new_table, create_list, ignore,
order_num, order, &copied, &deleted);
order_num, order, &copied, &deleted,
alter_info->keys_onoff);
}
else if (!new_table)
{
VOID(pthread_mutex_lock(&LOCK_open));
wait_while_table_is_used(thd, table, HA_EXTRA_FORCE_REOPEN);
table->file->external_lock(thd, F_WRLCK);
alter_table_manage_keys(table, table->file->indexes_are_disabled(),
alter_info->keys_onoff);
table->file->external_lock(thd, F_UNLCK);
VOID(pthread_mutex_unlock(&LOCK_open));
}
thd->last_insert_id=next_insert_id; // Needed for correct log
thd->count_cuted_fields= CHECK_FIELD_IGNORE;
@ -3815,7 +3877,8 @@ copy_data_between_tables(TABLE *from,TABLE *to,
bool ignore,
uint order_num, ORDER *order,
ha_rows *copied,
ha_rows *deleted)
ha_rows *deleted,
enum enum_enable_or_disable keys_onoff)
{
int error;
Copy_field *copy,*copy_end;
@ -3848,6 +3911,9 @@ copy_data_between_tables(TABLE *from,TABLE *to,
if (to->file->external_lock(thd, F_WRLCK))
DBUG_RETURN(-1);
/* We need external lock before we can disable/enable keys */
alter_table_manage_keys(to, from->file->indexes_are_disabled(), keys_onoff);
/* We can abort alter table for any table type */
thd->no_trans_update= 0;
thd->abort_on_warning= !ignore && test(thd->variables.sql_mode &