MySQL 9.3 Reference Manual Including MySQL NDB Cluster 9.3
The INNODB_TABLESPACES_BRIEF
table
provides space ID, name, path, flag, and space type metadata for
file-per-table, general, undo, and system tablespaces.
INNODB_TABLESPACES
provides the same
metadata but loads more slowly because other metadata provided by
the table, such as FS_BLOCK_SIZE
,
FILE_SIZE
, and
ALLOCATED_SIZE
, must be loaded dynamically.
Space and path metadata is also provided by the
INNODB_DATAFILES
table.
The INNODB_TABLESPACES_BRIEF
table
has these columns:
SPACE
The tablespace ID.
NAME
The tablespace name. For file-per-table tablespaces, the name
is in the form of
schema/table_name
.
PATH
The tablespace data file path. If a file-per-table tablespace is created in a location outside the MySQL data directory, the path value is a fully qualified directory path. Otherwise, the path is relative to the data directory.
FLAG
A numeric value that represents bit-level information about tablespace format and storage characteristics.
SPACE_TYPE
The type of tablespace. Possible values include
General
for InnoDB
general tablespaces, Single
for
InnoDB
file-per-table tablespaces, and
System
for the InnoDB
system tablespace.
mysql> SELECT * FROM INFORMATION_SCHEMA.INNODB_TABLESPACES_BRIEF WHERE SPACE = 7;
+-------+---------+---------------+-------+------------+
| SPACE | NAME | PATH | FLAG | SPACE_TYPE |
+-------+---------+---------------+-------+------------+
| 7 | test/t1 | ./test/t1.ibd | 16417 | Single |
+-------+---------+---------------+-------+------------+
You must have the PROCESS
privilege to query this table.
Use the INFORMATION_SCHEMA
COLUMNS
table or the
SHOW COLUMNS
statement to view
additional information about the columns of this table,
including data types and default values.