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sql_table.cc:

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Fix CREATE LIKE TABLE .. temporary case
This commit is contained in:
venu@myvenu.com
2002-12-28 01:38:29 -08:00
parent d85a01db2c
commit 2e0b01b315
6 changed files with 235 additions and 5 deletions
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119
sql/sql_table.cc
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@ -1376,6 +1376,125 @@ int mysql_optimize_table(THD* thd, TABLE_LIST* tables, HA_CHECK_OPT* check_opt)
}
/*
Create a table identical to the specified table
SYNOPSIS
mysql_create_like_table()
thd Thread object
table Table list (one table only)
create_info Create info
table_ident Src table_ident
RETURN VALUES
0 ok
-1 error
*/
int mysql_create_like_table(THD* thd, TABLE_LIST* table,
HA_CREATE_INFO *create_info,
Table_ident *table_ident)
{
TABLE **tmp_table;
char src_path[FN_REFLEN], dst_path[FN_REFLEN];
char *db= table->db;
char *table_name= table->real_name;
char *src_db= thd->db;
char *src_table= table_ident->table.str;
int err;
DBUG_ENTER("mysql_create_like_table");
/*
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)))
{
net_printf(thd,ER_WRONG_TABLE_NAME,src_table);
DBUG_RETURN(0);
}
if ((tmp_table= find_temporary_table(thd, src_db, src_table)))
strxmov(src_path, (*tmp_table)->path, reg_ext, NullS);
else
{
strxmov(src_path, mysql_data_home, "/", src_db, "/", src_table,
reg_ext, NullS);
if (access(src_path, F_OK))
{
my_error(ER_BAD_TABLE_ERROR, MYF(0), src_table);
DBUG_RETURN(-1);
}
}
/*
Validate the destination table
skip the destination table name checking as this is already
validated.
*/
if (create_info->options & HA_LEX_CREATE_TMP_TABLE)
{
if (find_temporary_table(thd, db, table_name))
goto table_exists;
sprintf(dst_path,"%s%s%lx_%lx_%x%s",mysql_tmpdir,tmp_file_prefix,
current_pid, thd->thread_id, thd->tmp_table++,reg_ext);
create_info->table_options|= HA_CREATE_DELAY_KEY_WRITE;
}
else
{
strxmov(dst_path, mysql_data_home, "/", db, "/", table_name,
reg_ext, NullS);
if (!access(dst_path, F_OK))
goto table_exists;
}
/*
Create a new table by copying from source table
*/
if (my_copy(src_path, dst_path, MYF(MY_WME)))
DBUG_RETURN(-1);
/*
As mysql_truncate don't work on a new table at this stage of
creation, instead create the table directly (for both normal
and temporary tables).
*/
*fn_ext(dst_path)= 0;
err= ha_create_table(dst_path, create_info, 1);
if (create_info->options & HA_LEX_CREATE_TMP_TABLE)
{
if (err || !open_temporary_table(thd, dst_path, db, table_name, 1))
{
(void) rm_temporary_table(create_info->db_type, dst_path);
DBUG_RETURN(-1);
}
}
else if (err)
{
(void) quick_rm_table(create_info->db_type, db, table_name);
DBUG_RETURN(-1);
}
DBUG_RETURN(0);
table_exists:
if (create_info->options & HA_LEX_CREATE_IF_NOT_EXISTS)
{
char warn_buff[MYSQL_ERRMSG_SIZE];
sprintf(warn_buff,ER(ER_TABLE_EXISTS_ERROR),table_name);
push_warning(thd, MYSQL_ERROR::WARN_LEVEL_WARN,
ER_TABLE_EXISTS_ERROR,warn_buff);
DBUG_RETURN(0);
}
my_error(ER_TABLE_EXISTS_ERROR, MYF(0), table_name);
DBUG_RETURN(-1);
}
int mysql_analyze_table(THD* thd, TABLE_LIST* tables, HA_CHECK_OPT* check_opt)
{
#ifdef OS2