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

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into dl145b.mysql.com:/home/ndbdev/tomas/mysql-5.1
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ndbdev@dl145b.mysql.com
2005-06-10 07:22:27 +02:00
parent 63917fb090 4441b59711
commit 8d44b54295
46 changed files with 687 additions and 220 deletions
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40
sql/sql_table.cc
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@ -2590,28 +2590,33 @@ bool mysql_create_like_table(THD* thd, TABLE_LIST* table,
char src_path[FN_REFLEN], dst_path[FN_REFLEN];
char *db= table->db;
char *table_name= table->table_name;
char *src_db= thd->db;
char *src_db;
char *src_table= table_ident->table.str;
int err;
bool res= TRUE;
TABLE_LIST src_tables_list;
DBUG_ENTER("mysql_create_like_table");
src_db= table_ident->db.str ? table_ident->db.str : thd->db;
/*
Validate the source table
*/
if (table_ident->table.length > NAME_LEN ||
(table_ident->table.length &&
check_table_name(src_table,table_ident->table.length)) ||
table_ident->db.str && check_db_name((src_db= table_ident->db.str)))
check_table_name(src_table,table_ident->table.length)))
{
my_error(ER_WRONG_TABLE_NAME, MYF(0), src_table);
DBUG_RETURN(TRUE);
}
if (!src_db || check_db_name(src_db))
{
my_error(ER_WRONG_DB_NAME, MYF(0), src_db ? src_db : "NULL");
DBUG_RETURN(-1);
}
bzero((gptr)&src_tables_list, sizeof(src_tables_list));
src_tables_list.db= table_ident->db.str ? table_ident->db.str : thd->db;
src_tables_list.table_name= table_ident->table.str;
src_tables_list.db= src_db;
src_tables_list.table_name= src_table;
if (lock_and_wait_for_table_name(thd, &src_tables_list))
goto err;
@ -3394,12 +3399,25 @@ bool mysql_alter_table(THD *thd,char *new_db, char *new_name,
continue; // Field is removed
uint key_part_length=key_part->length;
if (cfield->field) // Not new field
{ // Check if sub key
if (cfield->field->type() != FIELD_TYPE_BLOB &&
(cfield->field->pack_length() == key_part_length ||
cfield->length <= key_part_length /
key_part->field->charset()->mbmaxlen))
key_part_length=0; // Use whole field
{
/*
If the field can't have only a part used in a key according to its
new type, or should not be used partially according to its
previous type, or the field length is less than the key part
length, unset the key part length.
We also unset the key part length if it is the same as the
old field's length, so the whole new field will be used.
BLOBs may have cfield->length == 0, which is why we test it before
checking whether cfield->length < key_part_length (in chars).
*/
if (!Field::type_can_have_key_part(cfield->field->type()) ||
!Field::type_can_have_key_part(cfield->sql_type) ||
cfield->field->field_length == key_part_length ||
(cfield->length && (cfield->length < key_part_length /
key_part->field->charset()->mbmaxlen)))
key_part_length= 0; // Use whole field
}
key_part_length /= key_part->field->charset()->mbmaxlen;
key_parts.push_back(new key_part_spec(cfield->field_name,