Add SqlExpression GetAllTables() API

Author: mythz

src/ServiceStack.OrmLite.sln.DotSettings

@@ -1,3 +1,4 @@
 <wpf:ResourceDictionary xml:space="preserve" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:s="clr-namespace:System;assembly=mscorlib" xmlns:ss="urn:shemas-jetbrains-com:settings-storage-xaml" xmlns:wpf="http://schemas.microsoft.com/winfx/2006/xaml/presentation">
+	<s:Boolean x:Key="/Default/Environment/SettingsMigration/IsMigratorApplied/=JetBrains_002EdotCover_002EIde_002ECore_002EFilterManagement_002EModel_002ESolutionFilterSettingsManagerMigrateSettings/@EntryIndexedValue">True</s:Boolean>
 	<s:String x:Key="/Default/FilterSettingsManager/CoverageFilterXml/@EntryValue">&lt;data&gt;&lt;IncludeFilters /&gt;&lt;ExcludeFilters /&gt;&lt;/data&gt;</s:String>
 	<s:String x:Key="/Default/FilterSettingsManager/AttributeFilterXml/@EntryValue">&lt;data /&gt;</s:String></wpf:ResourceDictionary>

src/ServiceStack.OrmLite/Expressions/SqlExpression.Join.cs

@@ -22,7 +22,14 @@ public class TableOptions
 
     public abstract partial class SqlExpression<T> : ISqlExpression
     {
-        protected List<ModelDefinition> tableDefs = new List<ModelDefinition>();
+        protected List<ModelDefinition> tableDefs = new();
+
+        public List<ModelDefinition> GetAllTables()
+        {
+            var allTableDefs = new List<ModelDefinition> { modelDef };
+            allTableDefs.AddRange(tableDefs);
+            return allTableDefs;
+        }
 
         public bool IsJoinedTable(Type type)
         {

src/ServiceStack.OrmLite/Expressions/SqlExpression.cs

@@ -18,7 +18,7 @@ public abstract partial class SqlExpression<T> : ISqlExpression, IHasUntypedSqlE
         public const string FalseLiteral = "(1=0)";
 
         private Expression<Func<T, bool>> underlyingExpression;
-        private List<string> orderByProperties = new List<string>();
+        private List<string> orderByProperties = new();
         private string selectExpression = string.Empty;
         private string fromExpression = null;
         private string whereExpression;
@@ -286,8 +286,7 @@ internal virtual SqlExpression<T> Select(string[] fields, bool distinct)
 
             useFieldName = true;
 
-            var allTableDefs = new List<ModelDefinition> { modelDef };
-            allTableDefs.AddRange(tableDefs);
+            var allTableDefs = GetAllTables();
 
             var fieldsList = new List<string>();
             var sb = StringBuilderCache.Allocate();