`information_schema.tidb_indexes.*`

show items implemented by

any at least two only one database all databases

relation	column	mysql	mariadb	tidb	postgres	cockroachdb	mssql
`tidb_indexes`
	`column_name`	unsupported	unsupported	`VARCHAR(64) NULL`: 4-6.1	unsupported	unsupported	unsupported
	`expression`	unsupported	unsupported	`VARCHAR(64) NULL`: 4-6.1	unsupported	unsupported	unsupported
	`index_comment`	unsupported	unsupported	`VARCHAR(2048) NULL`: 4-6.1	unsupported	unsupported	unsupported
	`index_id`	unsupported	unsupported	`BIGINT(21) NULL`: 4-6.1	unsupported	unsupported	unsupported
	`key_name`	unsupported	unsupported	`VARCHAR(64) NULL`: 4-6.1	unsupported	unsupported	unsupported
	`non_unique`	unsupported	unsupported	`BIGINT(21) NULL`: 4-6.1	unsupported	unsupported	unsupported
	`seq_in_index`	unsupported	unsupported	`BIGINT(21) NULL`: 4-6.1	unsupported	unsupported	unsupported
	`sub_part`	unsupported	unsupported	`BIGINT(21) NULL`: 4-6.1	unsupported	unsupported	unsupported
	`table_name`	unsupported	unsupported	`VARCHAR(64) NULL`: 4-6.1	unsupported	unsupported	unsupported
	`table_schema`	unsupported	unsupported	`VARCHAR(64) NULL`: 4-6.1	unsupported	unsupported	unsupported