diff --git a/pglab/BaseTableModel.cpp b/pglab/BaseTableModel.cpp
index de5e077..5d1ceae 100644
--- a/pglab/BaseTableModel.cpp
+++ b/pglab/BaseTableModel.cpp
@@ -4,10 +4,6 @@
 
 using namespace Pgsql;
 
-BaseTableModel::BaseTableModel(QObject *parent)
-	: QAbstractTableModel(parent)
-{}
-
 QVariant BaseTableModel::data(const QModelIndex &index, int role) const
 {
 	QVariant v;
diff --git a/pglab/BaseTableModel.h b/pglab/BaseTableModel.h
index c6d6e8e..cd18330 100644
--- a/pglab/BaseTableModel.h
+++ b/pglab/BaseTableModel.h
@@ -9,7 +9,8 @@ class BaseTableModel : public QAbstractTableModel
 	Q_OBJECT
 
 public:
-	explicit BaseTableModel(QObject *parent);
+	using QAbstractTableModel::QAbstractTableModel;
+
 	QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const override;
 
 protected:
diff --git a/pglab/QueryResultModel.cpp b/pglab/QueryResultModel.cpp
index c6449c5..1af75d3 100644
--- a/pglab/QueryResultModel.cpp
+++ b/pglab/QueryResultModel.cpp
@@ -5,7 +5,7 @@
 #include <QColor>
 
 QueryResultModel::QueryResultModel(QObject *parent, std::shared_ptr<Pgsql::Result> r)
-	: QAbstractTableModel(parent)
+	: BaseTableModel(parent)
 	, result(std::move(r))
 {}
 
@@ -22,72 +22,48 @@ int QueryResultModel::columnCount(const QModelIndex &) const
 	return r;
 }
 
-QVariant QueryResultModel::data(const QModelIndex &index, int role) const
+Oid QueryResultModel::getType(int column) const
 {
-	using namespace Pgsql;
+	return result->type(column);
+}
 
+QVariant QueryResultModel::getData(const QModelIndex &index) const
+{
 	QVariant r;
 	int rij = index.row();
 	int col = index.column();
-	if (role == Qt::DisplayRole) {
-		if (result->null(col, rij)) {
-			r = "null";
-		}
-		else {
-			Oid o = result->type(col);
-			QString s(result->val(col, rij));
-			switch (o) {
-			case BOOLOID:
-				s = (s == "t") ? "TRUE" : "FALSE";
-				// intentional fall through
-			default:
-				if (s.length() > 256) {
-					s.truncate(256);
-				}
-				r = s;
-			}
-
-
-		}
+	if (result->null(col, rij)) {
+		r = "null";
 	}
-	else if (role == Qt::TextAlignmentRole) {
-		r = GetDefaultAlignmentForType(result->type(col));
-	}
-	else if (role == Qt::ForegroundRole) {
-		if (result->null(col, rij)) {
-			r = QBrush(Qt::gray);
-		}
-		else {
-			Oid o = result->type(col);
-			switch (o) {
-			case INT2OID:
-			case INT4OID:
-			case INT8OID:
-				r = QBrush(Qt::darkBlue);
-				break;
-			case FLOAT4OID:
-			case FLOAT8OID:
-				r = QBrush(Qt::darkCyan);
-				break;
-			case NUMERICOID:
-				r = QBrush(Qt::darkGreen);
-				break;
-			case BOOLOID:
-				if (strcmp(result->val(col, rij), "t") == 0) {
-					r = QBrush(Qt::darkGreen);
-				}
-				else {
-					r = QBrush(Qt::darkRed);
-				}
-				break;
-			default:
-				break;
+	else {
+//		Oid o = result->type(col);
+		QString s(result->val(col, rij));
+//		switch (o) {
+//		case BOOLOID:
+//			s = (s == "t") ? "TRUE" : "FALSE";
+//			// intentional fall through
+//		default:
+			if (s.length() > 256) {
+				s.truncate(256);
 			}
-		}
+			r = s;
+//		}
 	}
 	return r;
 }
 
+QVariant QueryResultModel::data(const QModelIndex &index, int role) const
+{
+	if (role == Qt::ForegroundRole) {
+		int rij = index.row();
+		int col = index.column();
+		if (result->null(col, rij)) {
+			return QBrush(Qt::gray);
+		}
+	}
+	return BaseTableModel::data(index, role);
+}
+
 QVariant QueryResultModel::headerData(int section, Qt::Orientation orientation, int role) const
 {
 	QVariant r;
diff --git a/pglab/QueryResultModel.h b/pglab/QueryResultModel.h
index ed8f21a..1481686 100644
--- a/pglab/QueryResultModel.h
+++ b/pglab/QueryResultModel.h
@@ -1,10 +1,11 @@
 #ifndef QUERYRESULTMODEL_H
 #define QUERYRESULTMODEL_H
 
-#include <QAbstractTableModel>
+//#include <QAbstractTableModel>
+#include "BaseTableModel.h"
 #include "Pgsql_Connection.h"
 
-class QueryResultModel : public QAbstractTableModel
+class QueryResultModel : public BaseTableModel
 {
 	Q_OBJECT
 public:
@@ -16,6 +17,9 @@ public:
 	virtual QVariant headerData(int section, Qt::Orientation orientation, int role = Qt::DisplayRole) const override;
 //	virtual Qt::ItemFlags flags(const QModelIndex &index) const override;
 
+protected:
+	virtual Oid getType(int column) const override;
+	virtual QVariant getData(const QModelIndex &index) const override;
 private:
 	std::shared_ptr<Pgsql::Result> result;
 };