`information_schema.spatial_ref_sys.*`

show items implemented by

any at least two only one database all databases

relation	column	mysql	mariadb	tidb	postgres	cockroachdb	mssql
`spatial_ref_sys`
	`auth_name`	unsupported	`VARCHAR(512) NOT NULL`: 10.1-10.8	unsupported	unsupported	unsupported	unsupported
	`auth_srid`	unsupported	`SMALLINT(5) NOT NULL`: 10.1-10.8	unsupported	unsupported	unsupported	unsupported
	`srid`	unsupported	`SMALLINT(5) NOT NULL`: 10.1-10.8	unsupported	unsupported	unsupported	unsupported
	`srtext`	unsupported	`VARCHAR(2048) NOT NULL`: 10.1-10.8	unsupported	unsupported	unsupported	unsupported