Geometry class cannot handle 3D WKT

Driver version

SQL Server version

Microsoft SQL Server 2019 (RTM) - 15.0.2000.5 (X64) Sep 24 2019 13:48:23 Copyright © 2019 Microsoft Corporation Developer Edition (64-bit) on Linux (Ubuntu 16.04.6 LTS) <X64>

Client Operating System

Linux Mint 19.2 (SQLServer is running in the official docker images)

JAVA/JVM version

OpenJDK 1.8.0_232

Table schema

No table needed.

Problem description

The JDBC driver (and the routines inside the database too) cannot handle geometries with Z as specified in the OGC Simple Feature Specitication, see “7.2.3 BNF Productions for Three-Dimension Geometry WKT”

1. Expected behaviour: the code (and the database should parse a valid 3D WKT expression
2. Actual behaviour: it does not, claims Z is invalid
3. Error message/stack trace:

Exception in thread "main" com.microsoft.sqlserver.jdbc.SQLServerException: Carattere non valido in Well-Known text alla posizione 12.
	at com.microsoft.sqlserver.jdbc.SQLServerSpatialDatatype.throwIllegalWKTPosition(SQLServerSpatialDatatype.java:1835)
	at com.microsoft.sqlserver.jdbc.SQLServerSpatialDatatype.checkEmptyKeyword(SQLServerSpatialDatatype.java:1489)
	at com.microsoft.sqlserver.jdbc.SQLServerSpatialDatatype.parseWKTForSerialization(SQLServerSpatialDatatype.java:380)
	at com.microsoft.sqlserver.jdbc.Geometry.<init>(Geometry.java:39)
	at com.microsoft.sqlserver.jdbc.Geometry.parse(Geometry.java:128)
	at org.geotools.data.sqlserver.GeometryZTest.main(GeometryZTest.java:9)

1. Any other details that can be helpful: Code to reproduce:

import com.microsoft.sqlserver.jdbc.Geometry;
import com.microsoft.sqlserver.jdbc.SQLServerException;

public class GeometryZTest {

    public static void main(String[] args) throws SQLServerException {
        Geometry geometry = Geometry.parse("LINESTRING Z(0 0 0, 1 1 1)");
    }
}

As an addition, the same problem seems to happen with WKB, the code (and the database routines) cannot parse a valid 3D geometry encoding. To generate such encodings I’d suggest to use the Java Topology Suite WKTWriter and WKBWriter classes.

[aaime]

Reported here: https://feedback.azure.com/forums/908035-sql-server/suggestions/39560161-3d-wkt-support

[peterbae]

Closing the issue as it’s not a driver issue.