Problems creating a spatial index

Question

I have tried to create spatial indexes the same way that the MapInfo Easy Loader does but when I issue the following sql:
CREATE INDEX SPATIAL.TEST_TABLE3_SX ON
"SPATIAL".TEST_TABLE3(GEOMETRY)
TABLESPACE SYSTEM PCTFREE 0
I get the following error message:
The following error has occurred:
ORA-02327: cannot create index on expression with datatype ADT
Which is described further in the Oracle documentation as follows:
ORA-02327 cannot create index on expression with datatype string
Cause: An attempt was made to create an index on a non-indexable expression.
Action: Change the column datatype or do not create the index on an expression whose datatype is one of VARRAY, nested table, object, LOB, or REF.
It seems as if spatial indexing can not be performed on the GEOMETRY column. However, both columns, GEOMETRY or GEOLOC, in each table, TEST_TABLE3 created by my java app and TEST4 created by EasyLoader, has the same type: SDO_GEOMTRY.
How do I go about creating the spatial index?

Answer 1

Hi,
ORA-13354 incorrect offset in ELEM_INFO_ARRAY
Cause: The offset field in ELEM_INFO_ARRAY of SDO_GEOMETRY references
an invalid array subscript in SDO_ORDINATE_ARRAY.
Action: Confirm that the offset is a valid array subscript in SDO_ORDINATE_ARRAY.
So your geometry definition in the SDO_ELEM_INFO has an offset to a location in
SDO_ORDINATES that doesn't exist.
The correct call signature for sdo_geom.validate_layer is:
begin
sdo_geom.validate_layer('TEST_TABLE3','GEOMETRY','KEY_COLUMN','VALIDATION_TABLE');
end;
where:
TEST_TABLE3 is the table name
GEOMETRY is the column name
KEY_COLUMN is the name of the column in the table that is a numeric key
VALIDATION_TABLE is the name of a pre-created table that has the first field
defined as a numeric and the second field defined as varchar2(10), e.g.:
create table validation_table (id number, status varchar2(10));
If you don't have a numeric key then you can't run this procedure, and perhaps
to should run validate_geometry for each geometry in the layer:
CREATE TABLE validation_results as
SELECT SOME_KEY_FIELD,
SDO_GEOM.VALIDATE_GEOMETRY(s.geometry,
(SELECT diminfo
FROM user_sdo_geom_metadata
WHERE table_name = 'TEST_TABLE3'
AND column_name = 'GEOMETRY')) STATUS
FROM TEST_TABLE3 s;
SELECT * FROM validation_results
WHERE status <> 'TRUE';
You can look at values in the SDO_ELEM_INFO field by doing the following:
select a.geometry.sdo_elem_info from test_table3 a
where (info that resticts the select to the row you are interested in);