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MySQL 8.4 Reference Manual  /  ...  /  The INFORMATION_SCHEMA ST_GEOMETRY_COLUMNS Table

28.3.35 INFORMATION_SCHEMA ST_GEOMETRY_COLUMNS 表

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.