Need to get temp table name

[mattjohnsonpint]

Hi, and thanks for putting this library together!

I'm using it to import data into a temp table, and then I need to follow that up with a SQL MERGE statement. However, I need a way to get the name of the temp table so I can use it as the merge source. Here's what I'm currently doing:

await using var tempTable = await _dbContext.BulkInsertIntoTempTableAsync(tempData, bulkInsertOptions,  cancellationToken);

string tempTableName = tempTable.GetTableName();

string mergeSql = $@"
MERGE RealTable AS dst
USING {tempTableName} AS src
ON dst.SomeValue = src.SomeValue
WHEN MATCHED THEN
...
WHEN NOT MATCHED THEN
...
;";

await _dbContext.Database.ExecuteSqlRawAsync(mergeSql, cancellationToken);

GetTableName is implemented as an extension method that uses reflection:

public static string GetTableName<T>(this ITempTableQuery<T> tempTableQuery)
{
    var fieldInfo = tempTableQuery.GetType().GetField("_tempTableReference", BindingFlags.Instance | BindingFlags.NonPublic);
    if (fieldInfo != null)
    {
        var tempTableReference = (ITempTableReference)fieldInfo.GetValue(tempTableQuery);
        return tempTableReference.Name;
    }

    throw new Exception("Could not get temp table name!");
}

It would be better to not use reflection. Can you please expose the temp table name (or the reference) as a property on ITempTableQuery<T>? Thanks.

[PawelGerr]

The name is exposed on ITempTableQuery<T>.
Versions 1.4.0 (EF Core 2.x) and 2.0.0-beta005 (EF Core 3.1) should be on Nuget in a few minutes.

[mattjohnsonpint]

Works perfectly. Thanks!