DYNDB109: H3Resolution specified without H3 index type

Field	Value
Code	DYNDB109
Severity	Error

Message

Property '{0}' has H3Resolution specified but SpatialIndexType is not H3; set SpatialIndexType = SpatialIndexType.H3 to use H3 indexing

Description

H3Resolution can only be used when SpatialIndexType is set to H3. Either set SpatialIndexType = SpatialIndexType.H3 or remove the H3Resolution property. The H3Resolution parameter configures the precision of Uber H3 hexagonal spatial indexing.

Example

The following code triggers this diagnostic:

[DynamoDbTable("Locations")]
public partial class Location
{
    [PartitionKey]
    [DynamoDbAttribute("pk")]
    public string Pk { get; set; } = string.Empty;

    [StoreCoordinates(H3Resolution = 9)]
    [DynamoDbAttribute("coordinates")]
    public GeoLocation Coordinates { get; set; }
}

Fix

The corrected version:

[DynamoDbTable("Locations")]
public partial class Location
{
    [PartitionKey]
    [DynamoDbAttribute("pk")]
    public string Pk { get; set; } = string.Empty;

    [StoreCoordinates(SpatialIndexType = SpatialIndexType.H3, H3Resolution = 9)]
    [DynamoDbAttribute("coordinates")]
    public GeoLocation Coordinates { get; set; }
}