Support reading geometries in EWKB format.

trinodb · Nov 4, 2024 · 0e316f5 · 0e316f5
1 parent 579e8ac
commit 0e316f5
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Showing 3 changed files with 14 additions and 7 deletions.
diff --git a/docs/src/main/sphinx/functions/geospatial.md b/docs/src/main/sphinx/functions/geospatial.md
@@ -61,7 +61,7 @@ Returns a geometry type object from WKT representation.
 :::
 
 :::{function} ST_GeomFromBinary(varbinary) -> Geometry
-Returns a geometry type object from WKB representation.
+Returns a geometry type object from WKB or EWKB representation.
 :::
 
 :::{function} geometry_from_hadoop_shape(varbinary) -> Geometry

diff --git a/plugin/trino-geospatial/src/main/java/io/trino/plugin/geospatial/GeoFunctions.java b/plugin/trino-geospatial/src/main/java/io/trino/plugin/geospatial/GeoFunctions.java
@@ -62,6 +62,8 @@
 import org.locationtech.jts.geom.Geometry;
 import org.locationtech.jts.geom.GeometryCollection;
 import org.locationtech.jts.geom.GeometryFactory;
+import org.locationtech.jts.io.ParseException;
+import org.locationtech.jts.io.WKBReader;
 import org.locationtech.jts.linearref.LengthIndexedLine;
 import org.locationtech.jts.operation.distance.DistanceOp;
 
@@ -175,6 +177,8 @@ public final class GeoFunctions
     private static final EnumSet<GeometryType> VALID_TYPES_FOR_ST_POINTS = EnumSet.of(
             LINE_STRING, POLYGON, POINT, MULTI_POINT, MULTI_LINE_STRING, MULTI_POLYGON, GEOMETRY_COLLECTION);
 
+    public static final WKBReader WKB_READER = new WKBReader();
+
     private GeoFunctions() {}
 
     @Description("Returns a Geometry type LineString object from Well-Known Text representation (WKT)")
@@ -1538,18 +1542,15 @@ private static OGCGeometry geometryFromText(Slice input)
         return geometry;
     }
 
-    private static OGCGeometry geomFromBinary(Slice input)
+    private static Geometry geomFromBinary(Slice input)
     {
         requireNonNull(input, "input is null");
-        OGCGeometry geometry;
         try {
-            geometry = OGCGeometry.fromBinary(input.toByteBuffer().slice());
+            return WKB_READER.read(input.getBytes());
         }
-        catch (IllegalArgumentException | IndexOutOfBoundsException e) {
+        catch (ParseException e) {
             throw new TrinoException(INVALID_FUNCTION_ARGUMENT, "Invalid WKB", e);
         }
-        geometry.setSpatialReference(null);
-        return geometry;
     }
 
     private static ByteBuffer getShapeByteBuffer(Slice input)

diff --git a/plugin/trino-geospatial/src/test/java/io/trino/plugin/geospatial/TestGeoFunctions.java b/plugin/trino-geospatial/src/test/java/io/trino/plugin/geospatial/TestGeoFunctions.java
@@ -2159,6 +2159,12 @@ public void testSTGeometryFromBinary()
         assertGeomFromBinary("MULTIPOLYGON (((1 1, 3 1, 3 3, 1 3, 1 1)), ((2 4, 6 4, 6 6, 2 6, 2 4)))");
         assertGeomFromBinary("GEOMETRYCOLLECTION (POINT (1 2), LINESTRING (0 0, 1 2, 3 4), POLYGON ((0 0, 1 0, 1 1, 0 1, 0 0)))");
 
+        // The EWKB representation of "SRID=4326;POINT (1 1)".
+        assertThat(assertions.expression("ST_AsText(ST_GeomFromBinary(wkb))")
+                .binding("wkb", "x'0101000020E6100000000000000000F03F000000000000F03F'"))
+                .hasType(VARCHAR)
+                .isEqualTo("POINT (1 1)");
+
         // array of geometries
         assertThat(assertions.expression("transform(a, wkb -> ST_AsText(ST_GeomFromBinary(wkb)))")
                 .binding("a", "ARRAY[ST_AsBinary(ST_Point(1, 2)), ST_AsBinary(ST_Point(3, 4))]"))