DYNDB110: GeoHashPrecision specified without GeoHash index type

Field	Value
Code	DYNDB110
Severity	Error

Message

Property '{0}' has GeoHashPrecision specified but SpatialIndexType is not GeoHash; set SpatialIndexType = SpatialIndexType.GeoHash or remove the GeoHashPrecision property

Description

GeoHashPrecision can only be used when SpatialIndexType is set to GeoHash (or not specified, as GeoHash is the default). Either set SpatialIndexType = SpatialIndexType.GeoHash or remove the GeoHashPrecision property.

Example

The following code triggers this diagnostic:

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

    [StoreCoordinates(SpatialIndexType = SpatialIndexType.S2, GeoHashPrecision = 7)]
    [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.GeoHash, GeoHashPrecision = 7)]
    [DynamoDbAttribute("coordinates")]
    public GeoLocation Coordinates { get; set; }
}