information_schema.innodb_sys_foreign.*| relation | column | mysql | mariadb | tidb | postgres | cockroachdb | mssql | |
|---|---|---|---|---|---|---|---|---|
innodb_sys_foreign |
||||||||
for_name |
VARCHAR NOT NULL:
5.7
| VARCHAR NOT NULL:
10.2-10.7
| unsupported | unsupported | unsupported | unsupported | ||
id |
VARCHAR NOT NULL:
5.7
| VARCHAR NOT NULL:
10.2-10.7
| unsupported | unsupported | unsupported | unsupported | ||
n_cols |
INT NOT NULL:
5.7
| INT NOT NULL:
10.2-10.7
| unsupported | unsupported | unsupported | unsupported | ||
ref_name |
VARCHAR NOT NULL:
5.7
| VARCHAR NOT NULL:
10.2-10.7
| unsupported | unsupported | unsupported | unsupported | ||
type |
INT NOT NULL:
5.7
| INT NOT NULL:
10.2-10.7
| unsupported | unsupported | unsupported | unsupported | ||