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Bug #27300:

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Geometry fields have a result type string and a 
  special subclass to cater for the differences
  between them and the base class (just like 
  DATE/TIME).
  When creating temporary tables for results of 
  functions that return results of type GEOMETRY
  we must construct fields of the derived class 
  instead of the base class.
  Fixed by creating a GEOMETRY field (Field_geom) 
  instead of a generic BLOB (Field_blob) in temp 
  tables for the results of GIS functions that 
  have GEOMETRY return type (Item_geometry_func).
This commit is contained in:
gkodinov/kgeorge@magare.gmz
2007-03-28 14:35:23 +03:00
parent 9c55cd3e03
commit c3eb3f7093
4 changed files with 29 additions and 4 deletions
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11
mysql-test/r/gis.result
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@ -769,3 +769,14 @@ create table t1 (g geometry not null);
insert into t1 values(default);
ERROR 22003: Cannot get geometry object from data you send to the GEOMETRY field
drop table t1;
CREATE TABLE t1 (a GEOMETRY);
CREATE VIEW v1 AS SELECT GeomFromwkb(ASBINARY(a)) FROM t1;
CREATE VIEW v2 AS SELECT a FROM t1;
DESCRIBE v1;
Field Type Null Key Default Extra
GeomFromwkb(ASBINARY(a)) geometry YES NULL
DESCRIBE v2;
Field Type Null Key Default Extra
a geometry YES NULL
DROP VIEW v1,v2;
DROP TABLE t1;