`information_schema.key_column_usage.ordinal_position`

mysql

type: BIGINT NOT NULL

5.7-8

type: NULL

Note:

Position of the column within the constraint.

5.1-10.8

type: BIGINT NOT NULL

Note:

Position of the column within the constraint.

type: BIGINT(10) NOT NULL

Note:

The position of the column in the constraint, rather than in the table. The position number starts from 1.

4-6.1

type: CARDINAL_NUMBER NULL

Note:

Ordinal position of the column within the constraint key (count starts at 1)

10-15

type: CARDINAL_NUMBER

Note:

Ordinal position of the column within the constraint key (count starts at 1)

7.4-9.6

type: unknown

Note:

Ordinal position of the column within the constraint (begins at 1).

1-21.2

type: INT NULL

Note:

Column ordinal position.