> "TONY J.Y." wrote:
>
> Hi all,
>
> I am using the PostGIS to do research. Here I think that I found a bug
> with PostGreSQL / PostGIS.
> PostgreSQL 7.1.3/ PostGIS 0.6.2
>
> There is a function called "Astext" in PostGIS, defined as below.
> -- Function: astext(geometry)
> CREATE FUNCTION "astext"("geometry") RETURNS "text" AS
> 'astext_geometry' LANGUAGE 'C' WITH (ISSTRICT);
> When I used this function to return a geometry column, everything is
> OK if the result was less than 8190.
> I used the ODBC to get the ADO RecordSet. The DefinedSize of the
> field "astext" is 8190.
>
> Does this the PostgreSQL's ODBC problem? If the ODBC can not get the
> field's size, would it give the size of 8190?
Are you using the psqlodbc driver whose version >= 7.01.0006 ?
If so you could increase the size(8190) by setting MaxLongVarChar
driver option using ODBC DataSource Administarator.
You may be able to set the size to 0(unlimited?).
regards,
Hiroshi Inoue