OtterMind/Chat2DB · error · IllegalArgumentException
Unsupported EWKB geometry type
Error message
Unsupported EWKB geometry type
What it means
Error "Unsupported EWKB geometry type" thrown in OtterMind/Chat2DB.
Source
Thrown at chat2db-community-server/chat2db-community-plugins/chat2db-community-postgresql/src/main/java/ai/chat2db/plugin/postgresql/value/sub/PostgreSQLGeometryProcessor.java:186
}
return header;
}
private WkbHeader inspectGeometry(WkbCursor cursor, Integer inheritedSrid, boolean root, int depth) {
if (depth > MAX_NESTED_DEPTH) {
throw new IllegalArgumentException("EWKB nesting is too deep");
}
ByteOrder byteOrder = readByteOrder(cursor);
int typeWord = cursor.readInt(byteOrder);
if ((typeWord & EWKB_BBOX_FLAG) != 0) {
throw new IllegalArgumentException("EWKB bounding-box headers are not supported");
}
int isoType = typeWord & EWKB_TYPE_MASK;
int dimensionCode = isoType / 1000;
int baseType = isoType % 1000;
if (dimensionCode > 3 || baseType < 1 || baseType > 7) {
throw new IllegalArgumentException("Unsupported EWKB geometry type");
}
boolean hasZ = (typeWord & EWKB_Z_FLAG) != 0 || dimensionCode == 1 || dimensionCode == 3;
boolean hasMeasure = (typeWord & EWKB_M_FLAG) != 0 || dimensionCode == 2 || dimensionCode == 3;
boolean hasSrid = (typeWord & EWKB_SRID_FLAG) != 0;
Integer srid = hasSrid ? cursor.readInt(byteOrder) : null;
if (!root && srid != null && !srid.equals(inheritedSrid)) {
throw new IllegalArgumentException("Nested EWKB SRID differs from its parent");
}
WkbHeader header = new WkbHeader(baseType, hasZ, hasMeasure, srid);
int coordinateDimension = 2 + (hasZ ? 1 : 0) + (hasMeasure ? 1 : 0);
switch (baseType) {
case 1 -> inspectPoint(cursor, byteOrder, coordinateDimension);
case 2 -> inspectLineString(cursor, byteOrder, coordinateDimension);
case 3 -> {
int ringCount = readCount(cursor, byteOrder);
for (int i = 0; i < ringCount; i++) {View on GitHub (pinned to 5ee1e990e7)
Solutions
- Convert the geometry to a supported EWKB geometry type (point, linestring, polygon, or standard collections).
When it happens
Trigger: The EWKB geometry type code was not one the parser recognizes.
Common situations: See trigger scenarios.
AI-assisted analysis of OtterMind/Chat2DB@5ee1e990e7 (2026-08-14).
Data as JSON: /api/errors/b71c5840c3a87384.
Report an issue: GitHub.