Minor fixes for DirectLake metric collection (#119)

* Re-run DmvExtractor only if readStatisticsFromData is enabled

* Add DmvExtractor re-run to GetDaxModel overload

* Remove analyzeDirectQuery filter when retreiving referential integrity violations

Author: albertospelta

src/Dax.Model.Extractor/StatExtractor.cs

@@ -106,12 +106,8 @@ public void LoadRelationshipStatistics(int sampleRows = 0,bool analyzeDirectQuer
             {
                 var loopInvalidRelationships = relationshipList.Where(r => r.InvalidRows > 0).ToList().SplitList(10);
                 #region Details
-                foreach (var relationshipSetComplete in loopInvalidRelationships)
+                foreach (var relationshipSet in loopInvalidRelationships)
                 {
-                    var relationshipSet =
-                        relationshipSetComplete
-                        .Where(rel => analyzeDirectQuery || ((!rel.FromColumn.Table.HasDirectQueryPartitions) && (!rel.ToColumn.Table.HasDirectQueryPartitions)))
-                        .ToList();
                     // Skip EVALUATE if no valid relationships are found
                     if (!relationshipSet.Any()) continue;
 

src/Dax.Model.Extractor/TomExtractor.cs

@@ -296,8 +296,13 @@ public static Dax.Metadata.Model GetDaxModel(string connectionString, string app
                 Dax.Metadata.Extractor.DmvExtractor.PopulateFromDmv(daxModel, connection, serverName, databaseName, applicationName, applicationVersion);
 
                 // Populate statistics by querying the data model
-                if (readStatisticsFromData) {
+                if (readStatisticsFromData)
+                {
                     Dax.Metadata.Extractor.StatExtractor.UpdateStatisticsModel(daxModel, connection, sampleRows, analyzeDirectQuery, analyzeDirectLake);
+
+                    // if we have forced all columns into memory then re-run the DMVs to update the data with the new values after everything has been transcoded.
+                    if (analyzeDirectLake > DirectLakeExtractionMode.ResidentOnly)
+                        Dax.Metadata.Extractor.DmvExtractor.PopulateFromDmv(daxModel, connection, serverName, databaseName, applicationName, applicationVersion);
                 }
             }
             return daxModel;
@@ -351,12 +356,11 @@ public static Dax.Metadata.Model GetDaxModel(string serverName, string databaseN
                 // Populate statistics by querying the data model
                 if (readStatisticsFromData)
                 {
-                    Dax.Metadata.Extractor.StatExtractor.UpdateStatisticsModel(daxModel, connection, sampleRows, analyzeDirectQuery, analyzeDirectLake );
-                }
+                    Dax.Metadata.Extractor.StatExtractor.UpdateStatisticsModel(daxModel, connection, sampleRows, analyzeDirectQuery, analyzeDirectLake);
 
-                // if we have forced all columns into memory then re-run the DMVs to update the data with the new values after everything has been transcoded.
-                if (analyzeDirectLake > DirectLakeExtractionMode.ResidentOnly) {
-                    Dax.Metadata.Extractor.DmvExtractor.PopulateFromDmv(daxModel, connection, serverName, databaseName, applicationName, applicationVersion);
+                    // if we have forced all columns into memory then re-run the DMVs to update the data with the new values after everything has been transcoded.
+                    if (analyzeDirectLake > DirectLakeExtractionMode.ResidentOnly)
+                        Dax.Metadata.Extractor.DmvExtractor.PopulateFromDmv(daxModel, connection, serverName, databaseName, applicationName, applicationVersion);
                 }
             }
             return daxModel;