geometry is not defined in parser rule.

[GCer-Hidenori]

• input

DECLARE @g1 geometry;
DECLARE @g2 geometry;
SET @g1 = geometry::STGeomFromText('LINESTRING(1 1, 5 1, 3 5, 1 1)', 0);
SET @g2 = geometry::STGeomFromText('CIRCULARSTRING(1 1, 3 1, 5 1, 4 3, 3 5, 2 3, 1 1)', 0);
IF @g1.STIsValid() = 1 AND @g2.STIsValid() = 1
  BEGIN
      SELECT @g1.ToString(), @g2.ToString()
      SELECT @g1.STLength() AS [LS Length], @g2.STLength() AS [CS Length]
  END

-- Database design/Spatial data/Data Types
-- https://docs.microsoft.com/en-us/sql/relational-databases/spatial/spatial-data-types-overview?view=sql-server-ver15

593-600