24.32.17 The INFORMATION_SCHEMA INNODB_SYS_DATAFILES Table
The INNODB_SYS_DATAFILES
table provides data file path information for InnoDB
file-per-table and general tablespaces, equivalent to the information in the SYS_DATAFILES
table in the InnoDB
data dictionary.
For related usage information and examples, see Section 14.16.3, “InnoDB INFORMATION_SCHEMA System Tables”.
The INFORMATION_SCHEMA
FILES
table reports metadata for all InnoDB
tablespace types including file-per-table tablespaces, general tablespaces, the system tablespace, the temporary tablespace, and undo tablespaces, if present.
The INNODB_SYS_DATAFILES
table has these columns:
SPACE
The tablespace ID.
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.
Example
mysql> SELECT * FROM INFORMATION_SCHEMA.INNODB_SYS_DATAFILES WHERE SPACE = 57\G
*************************** 1. row ***************************
SPACE: 57
PATH: ./test/t1.ibd
Notes
You must have the
PROCESS
privilege to query this table.Use the
INFORMATION_SCHEMA
COLUMNS
table or theSHOW COLUMNS
statement to view additional information about the columns of this table, including data types and default values.