PgSQL: No TranslateToString usage

- Extractor uses direct calls of Schema name
- Translate (..., SchemaNode) uses base translation except for Temporary table
- TranslateToString implementation is commented

Author: alex-kulakov

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

@@ -1250,15 +1250,15 @@ protected virtual ISqlCompileUnit BuildExtractSequencesQuery(ExtractionContext c
         var sequenceMap = context.SequenceMap;
         foreach (var (segId, seq) in sequenceMap) {
           if (query.Length == 0) {
-            query.AppendFormat("SELECT * FROM (\nSELECT {0} as id, * FROM {1}", segId,
-              Driver.Translator.TranslateToString(null, seq)); // context is not used in PostrgreSQL translator
+            _ = query.AppendFormat("SELECT * FROM (\nSELECT {0} as id, * FROM {1}", segId,
+              SqlHelper.Quote(SqlHelper.EscapeSetup.WithQuotes, new[] { seq.Schema.DbName, seq.DbName }));
           }
           else {
-            query.AppendFormat("\nUNION ALL\nSELECT {0} as id, * FROM {1}", segId,
-              Driver.Translator.TranslateToString(null, seq)); // context is not used in PostgreSQL translator
+            _ = query.AppendFormat("\nUNION ALL\nSELECT {0} as id, * FROM {1}", segId,
+              SqlHelper.Quote(SqlHelper.EscapeSetup.WithQuotes, new[] { seq.Schema.DbName, seq.DbName }));
           }
         }
-        query.Append("\n) all_sequences\nORDER BY id");
+        _ = query.Append("\n) all_sequences\nORDER BY id");
       }
       return SqlDml.Fragment(SqlDml.Native(query.ToString()));
     }

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

@@ -222,23 +222,28 @@ public override void Translate(IOutput output, SqlMatchType mt)
       });
     }
 
+    ///// <inheritdoc/>
+    //public override string TranslateToString(SqlCompilerContext context, SchemaNode node)
+    //{
+    //  //temporary tables need no schema qualifier
+    //  if (node is TemporaryTable || node.Schema == null) {
+    //    return QuoteIdentifier(new[] { node.Name });
+    //  }
+    //  return QuoteIdentifier(new[] { node.Schema.Name, node.Name });
+    //}
+
     /// <inheritdoc/>
-    public override string TranslateToString(SqlCompilerContext context, SchemaNode node)
+    public override void Translate(SqlCompilerContext context, SchemaNode node)
     {
-      //temporary tables need no schema qualifier
-      if (!(node is TemporaryTable) && node.Schema != null) {
-        return context == null
-          ? QuoteIdentifier(new[] { node.Schema.Name, node.Name })
-          : QuoteIdentifier(new[] { context.SqlNodeActualizer.Actualize(node.Schema), node.Name });
-
+      if (node is TemporaryTable) {
+        TranslateIdentifier(context.Output, node.Name);
+      }
+      else {
+        base.Translate(context, node);
       }
-      return QuoteIdentifier(new[] { node.Name });
+      //context.Output.Append(TranslateToString(context, node));
     }
 
-    /// <inheritdoc/>
-    public override void Translate(SqlCompilerContext context, SchemaNode node) =>
-      context.Output.Append(TranslateToString(context, node));
-
     /// <inheritdoc/>
     public override void Translate(SqlCompilerContext context, SqlCreateTable node, CreateTableSection section)
     {