Writing values of 'NpgsqlTypes.NpgsqlRange`1[[System.TimeSpan, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]][]' is not supported for parameters having NpgsqlDbType '-2147483608'. about efcore.pg

[NinoFloris]

@NazarPolevyi

I notice your entity has the following attribute

  [Column("allowed_time_ranges", TypeName = "timerange[]")]
    public NpgsqlRange<TimeSpan>? AllowedTimeRanges { get; set; }

Specifically timerange[] while the clr type is not an array/list. Can you remove [] and try again?

[NinoFloris]

@roji this might be related to https://github.com/npgsql/npgsql/pull/5123/files#r1325747341

If so setting the actual datatypename of the range on the param should solve it.

EDIT: traced the regstration to

efcore.pg/src/EFCore.PG/Storage/Internal/NpgsqlTypeMappingSource.cs

Line 883 in 7f6bdbe

var unquotedRangeStoreType = rangeDefinition.SchemaName is null

which suggests that's already happening. Not sure how we end up with a is not supported for parameters having NpgsqlDbType kind of error. That only happens if it was set somehow.

[NazarPolevyi]

@NinoFloris
Thanks for answer.
@roji What do you think?

I'm sorry. The issue is actually related to array of ranges NpgSqlRange<TimeSpan>[]. So the entity class should look like this.

public class RestrictionSettings
{
    [Column("id")]
    public Guid Id { get; set; }

    [Column("allowed_time_ranges", TypeName = "timerange[]")]
    public NpgsqlRange<TimeSpan>[]? AllowedTimeRanges { get; set; }
}

Usual NpgSqlRange<TimeSpan> works fine.

public class RestrictionSettings
{
    [Column("id")]
    public Guid Id { get; set; }

    [Column("allowed_time_ranges", TypeName = "timerange")]
    public NpgsqlRange<TimeSpan> AllowedTimeRanges { get; set; }
}

Is it possible to use array(NpgsqlRange[]) now in 8.02 version?
Btw, NpgsqlRange<DateTime>[] works well without specifying custom range type. But for the NpgsqlRange<TimeSpan>[] it's not