Add proper translation of different sections of index creation

Author: alex-kulakov

Orm/Xtensive.Orm.PostgreSql/Sql.Drivers.PostgreSql/v12_0/Translator.cs

@@ -2,10 +2,35 @@
 // This code is distributed under MIT license terms.
 // See the License.txt file in the project root for more information.
 
+using Xtensive.Sql.Compiler;
+using Xtensive.Sql.Ddl;
+
 namespace Xtensive.Sql.Drivers.PostgreSql.v12_0
 {
   internal class Translator : v10_0.Translator
   {
+    public override void Translate(SqlCompilerContext context, SqlCreateIndex node, CreateIndexSection section)
+    {
+      var index = node.Index;
+      if (!index.IsFullText) {
+        var output = context.Output;
+        switch (section) {
+          case CreateIndexSection.NonkeyColumnsEnter:
+            _ = output.AppendOpeningPunctuation("INCLUDE (");
+            break;
+          case CreateIndexSection.NonkeyColumnsExit:
+            _ = output.AppendClosingPunctuation(")");
+            break;
+          default:
+            base.Translate(context, node, section);
+            break;
+        }
+      }
+      else {
+        base.Translate(context, node, section);
+      }
+    }
+
     // Constructors
 
     public Translator(SqlDriver driver)

Orm/Xtensive.Orm.PostgreSql/Sql.Drivers.PostgreSql/v8_0/Translator.cs

@@ -294,22 +294,30 @@ public override void Translate(SqlCompilerContext context, SqlCreateIndex node,
           if (index.IsSpatial) {
             _ = output.Append(" USING GIST");
           }
+          break;
+        case CreateIndexSection.ColumnsEnter:
           _ = output.Append("(");
           break;
-        case CreateIndexSection.StorageOptions:
+        case CreateIndexSection.ColumnsExit:
           _ = output.Append(")");
+          break;
+        case CreateIndexSection.NonkeyColumnsEnter:
+          break;
+        case CreateIndexSection.NonkeyColumnsExit:
+          break;
+        case CreateIndexSection.StorageOptions:
           AppendIndexStorageParameters(output, index);
           if (!string.IsNullOrEmpty(index.Filegroup)) {
             _ = output.Append(" TABLESPACE ");
             TranslateIdentifier(output, index.Filegroup);
           }
 
-          break;
-        case CreateIndexSection.Exit:
           break;
         case CreateIndexSection.Where:
           _ = output.Append(" WHERE ");
           break;
+        case CreateIndexSection.Exit:
+          break;
         default:
           break;
           ;