Text search on document not returning any results, when desired value is an enum and required parameter is not exact match(Case Insensitive)

[tonykaralis]

@oskardudycz as promised.
When running text search against documents, exact and partial words will return results but only when in string properties. Enums must be an exact match, although the case does not matter.

I would have thought that when searching a document the enums would be treated as strings and therefore partial words would be enough to return a result.

Example

• Property value in database: PricedIdeaScreening
• Search parameter: Priced
  This does not work when the value is of type enum, but does work on string properties.

Running PGSQL 11.1

Store options

            var options = new StoreOptions
            {             
                AutoCreateSchemaObjects = AutoCreate.CreateOrUpdate,
                DatabaseSchemaName = schema,
                PLV8Enabled = false
            };
            options.DdlRules.TableCreation = CreationStyle.CreateIfNotExists;

            options.Serializer(SetupCustomSerializer(customBinder));

            options.Schema.For<Team>();
            options.Schema.For<Country>();
            options.Schema.For<Tool>().FullTextIndex();
            
            ....
    
            options.Schema.For<IQuestionData>().AddSubClassHierarchy(DocumentStoreConfigExtensions.GetQuestionDataTypes());          

            options.Connection(_connectionString);
            return options;
            }

Sample Json

{
    "Id": "c6ea70b2-28d9-4190-94b4-c7a79ca23a5a",
    "$id": "376",
    "Name": "Idea Screening",
    "Type": "PricedIdeaScreening",
    "$type": "Tool",
    "IsHidden": false,
    "Description": null,
    "BoostOptionIds": [
        "a1dfa0bc-28d2-4968-8783-c1191d6ac716",
        "42646489-26bb-4e00-9eba-e4a95806f008",
        "c0e89277-948d-4d41-a3d6-d79ec28c41f0",
        "4d9ad3d6-c895-419e-b078-91934a72c1de",
        "09722847-da65-4ec2-83a6-fe2900c58b64",
        "4eb7e1e7-68c4-4e5a-b94f-02adab84a82f",
        "9e1466a0-b76b-479e-aeab-5f6f0476ecb2"
    ]
}

Property and value in question: Type = PricedIdeaScreening.

**Tested Queries using .Search() and .PhraseSearch() **
Fails

var searchParam = "Priced";
_dbSession.Query<Tool>().Where(x => x.Search(searchPram)).ToListAsync();

Fails

var searchParam = "priced";
_dbSession.Query<Tool>().Where(x => x.Search(searchPram)).ToListAsync();

Passes

var searchParam = "PricedIdeaScreening";
_dbSession.Query<Tool>().Where(x => x.Search(searchPram)).ToListAsync();

Passes

var searchParam = "pricedideascreening";
_dbSession.Query<Tool>().Where(x => x.Search(searchPram)).ToListAsync();

Edit:
Adding my custom serialization:

 /// <summary>
        /// Customizes the build in JsonSerializer
        /// </summary>
        /// <param name="customBinder"></param>
        /// <returns></returns>
        private Marten.Services.JsonNetSerializer SetupCustomSerializer(ISerializationBinder customBinder = null)
        {
            var customJson = new Marten.Services.JsonNetSerializer();
            customJson.Customize(o =>
            {
                if (customBinder != null)
                {
                    o.SerializationBinder = customBinder;
                }

                o.Formatting = Formatting.Indented;
                o.TypeNameHandling = TypeNameHandling.Objects;
                o.PreserveReferencesHandling = PreserveReferencesHandling.Objects;
                o.ObjectCreationHandling = ObjectCreationHandling.Auto;
                o.DateFormatHandling = DateFormatHandling.IsoDateFormat;
            });
            //this lets us do text searchs on enums
            customJson.EnumStorage = EnumStorage.AsString;

            return customJson;
        }

Let me know if you need any other bits.