Server window database tab tweaks

- Encoding as string instead of id
- Tablespace name instead of id
- Database list sorting enabled
- Database size

pglab/DatabasesTableModel.cpp

@@ -52,6 +52,9 @@ QVariant DatabasesTableModel::headerData(int section, Qt::Orientation orientatio
 			case TablespaceCol:
 				v = tr("Tablespace");
 				break;
+            case SizeCol:
+                v = tr("Size");
+                break;
 			case AclCol:
 				v = tr("ACL");
 				break;
@@ -89,7 +92,10 @@ Oid DatabasesTableModel::getType(int column) const
 	case ConnLimitCol:
 		oid = int4_oid;
 		break;
-	case AclCol:
+    case SizeCol:
+        oid = int8_oid;
+        break;
+    case AclCol:
 	case CollateCol:
 	case CTypeCol:
 	case EncodingCol:
@@ -119,7 +125,7 @@ QVariant DatabasesTableModel::getData(const QModelIndex &index) const
 			break;
 		case EncodingCol:
 			// todo lookup encoding name
-			v = db.encoding;
+            v = db.encodingString;
 			break;
 		case CollateCol:
 			v = db.collate;
@@ -138,8 +144,11 @@ QVariant DatabasesTableModel::getData(const QModelIndex &index) const
 			break;
 		case TablespaceCol:
 			// todo lookup tablespace name
-			v = db.tablespace;
+            v = getTablespaceDisplayString(*m_catalog, db.tablespace);
 			break;
+        case SizeCol:
+            v = db.sizeBytes;
+            break;
 		case AclCol:
 			v = db.aclString();
 			break;