Rechercher dans le manuel MySQL
25.39.10 The INFORMATION_SCHEMA INNODB_FIELDS Table
The INNODB_FIELDS
table provides
metadata about the key columns (fields) of
InnoDB
indexes.
For related usage information and examples, see Section 15.14.3, “InnoDB INFORMATION_SCHEMA Schema Object Tables”.
The INNODB_FIELDS
table has these
columns:
INDEX_ID
An identifier for the index associated with this key field; the same value as
INNODB_INDEXES.INDEX_ID
.NAME
The name of the original column from the table; the same value as
INNODB_COLUMNS.NAME
.POS
The ordinal position of the key field within the index, starting from 0 and incrementing sequentially. When a column is dropped, the remaining columns are reordered so that the sequence has no gaps.
Example
- *************************** 1. row ***************************
- INDEX_ID: 117
- NAME: col1
- POS: 0
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.
Document created the 26/06/2006, last modified the 26/10/2018
Source of the printed document:https://www.gaudry.be/en/mysql-rf-innodb-fields-table.html
The infobrol is a personal site whose content is my sole responsibility. The text is available under CreativeCommons license (BY-NC-SA). More info on the terms of use and the author.
References
These references and links indicate documents consulted during the writing of this page, or which may provide additional information, but the authors of these sources can not be held responsible for the content of this page.
The author This site is solely responsible for the way in which the various concepts, and the freedoms that are taken with the reference works, are presented here. Remember that you must cross multiple source information to reduce the risk of errors.