MySQL 8.0 Reference Manual Including MySQL NDB Cluster 8.0
The ST_GEOMETRY_COLUMNS
table
provides information about table columns that store spatial data.
This table is based on the SQL/MM (ISO/IEC 13249-3) standard, with
extensions as noted. MySQL implements
ST_GEOMETRY_COLUMNS
as a view on the
INFORMATION_SCHEMA
COLUMNS
table.
The ST_GEOMETRY_COLUMNS
table has
these columns:
TABLE_CATALOG
The name of the catalog to which the table containing the
column belongs. This value is always def
.
TABLE_SCHEMA
The name of the schema (database) to which the table containing the column belongs.
TABLE_NAME
The name of the table containing the column.
COLUMN_NAME
The name of the column.
SRS_NAME
The spatial reference system (SRS) name.
SRS_ID
The spatial reference system ID (SRID).
GEOMETRY_TYPE_NAME
The column data type. Permitted values are:
geometry
, point
,
linestring
, polygon
,
multipoint
,
multilinestring
,
multipolygon
,
geometrycollection
. This column is a MySQL
extension to the standard.