diff --git a/ctl/ctlSQLGrid.cpp b/ctl/ctlSQLGrid.cpp
index b1535af..a61da43 100644
--- a/ctl/ctlSQLGrid.cpp
+++ b/ctl/ctlSQLGrid.cpp
@@ -372,6 +372,43 @@ int ctlSQLGrid::Copy(int gensql)
 	int copied = 0;
 	size_t i;
 	generatesql=gensql;
+	//sqlResultTable* t = (sqlResultTable*)GetTable();
+	wxString sql = sqlquerytext.Lower();
+	int j = 0;
+	wxChar c;
+	wxString tn=wxEmptyString;
+	while ((j = sql.find("from", j)) > -1) {
+		j = j + 4;
+		c = sql[j];
+		i = j;
+		while (c == ' ' || c == '\t' || c == '\n' || c == '\r') {
+			i++;
+			c = sql[i];
+		}
+		j = i;
+		if (c == '(') {
+			continue;
+		}
+		while (c != ' ' && c != '\t' && c != '\n' && c != '\r' && c != ',' && c != '(' && c != ')') {
+			j++;
+			if (sql.Len() == j) break;
+			c = sql[j];
+		}
+		tn = sql.SubString(i,j-1); // table name
+		if (sql.Len() == j) break;
+		j = j+1;
+		i = j;
+		if (sql.Len() == j) break;
+		c = sql[j];
+		while (c > ' ' && c != ',' && c != '(' && c != ')') {
+			j++;
+			if (sql.Len() == j) break;
+			c = sql[j];
+		}
+		if (j>i) tn = sql.SubString(i, j - 1); // alias name
+		break;
+	}
+
 	if (gensql == 2) linedelim = ",";
 	else if(gensql == 3) linedelim = " or ";
 
@@ -385,6 +422,7 @@ int ctlSQLGrid::Copy(int gensql)
 		{
 			tmp=GetExportLine(rows.Item(i));
 			if (tmp.IsEmpty()) continue;
+			if (!tn.IsEmpty() && (generatesql == 1)) tmp.Replace("tbl", tn, false);
 			str.Append(tmp);
 			if (i < rows.GetCount() - 1 && (generatesql > 1)) str.Append(linedelim);
 			if (rows.GetCount() > 1)
@@ -402,7 +440,9 @@ int ctlSQLGrid::Copy(int gensql)
 
 		for (i = 0 ; i < numRows ; i++)
 		{
-			str.Append(GetExportLine(i, cols));
+			tmp = GetExportLine(i, cols);
+			if (!tn.IsEmpty() && (generatesql == 1)) tmp.Replace("tbl", tn, false);
+			str.Append(tmp);
 			if (i<(numRows-1) && (generatesql > 1)) str.Append(linedelim);
 			if (numRows > 1)
 				str.Append(END_OF_LINE);
@@ -434,8 +474,9 @@ int ctlSQLGrid::Copy(int gensql)
 			{
 				for (i = y1; i <= y2; i++)
 				{
-
-					str.Append(GetExportLine(i, x1, x2));
+					tmp = GetExportLine(i, x1, x2);
+					if (!tn.IsEmpty() && (generatesql==1)) tmp.Replace("tbl", tn, false);
+					str.Append(tmp);
 					if (i < y2 && (generatesql > 1)) str.Append(linedelim);
 					if (y2 > y1)
 						str.Append(END_OF_LINE);
@@ -505,8 +546,9 @@ int ctlSQLGrid::Copy(int gensql)
 			col = GetGridCursorCol();
 
 			AppendColumnHeader(str, col, col);
-
-			str.Append(GetExportLine(row, col, col));
+			tmp = GetExportLine(row, col, col);
+			if (!tn.IsEmpty() && (generatesql == 1)) tmp.Replace("tbl", tn, false);
+			str.Append(tmp);
 			copied = 1;
 		}
 	}
diff --git a/ctl/ctlSQLResult.cpp b/ctl/ctlSQLResult.cpp
index f32aa5c..d75b383 100644
--- a/ctl/ctlSQLResult.cpp
+++ b/ctl/ctlSQLResult.cpp
@@ -330,7 +330,88 @@ wxString ctlSQLResult::OnGetItemText(long item, long col) const
 	}
 	return wxEmptyString;
 }
+wxString ctlSQLResult::CheckSelColumnDate()
+{
+	size_t i;
+	wxString ss = wxEmptyString;
+	if (GetSelectedCols().GetCount()) {
+		wxArrayInt cols = GetSelectedCols();
+		size_t numRows = GetNumberRows();
+		int err = 0;
+		int noformat = 0;
+		int dtType = -1;
+		//AppendColumnHeader(str, cols);
+			//str.Append(GetExportLine(i, cols));
+			for (size_t col = 0; col < cols.Count(); col++)
+			{
+				int cl = cols[col];
+				bool isDt = false;
+				switch (colTypClasses.Item(cl))
+				{
+				case PGTYPCLASS_DATE:
+					isDt= true;
+				}
+				wxDateTime dt((time_t)-1);
+				wxDateTime dt_prev;
+				wxTimeSpan sp,tmp;
+				bool parseDT = false;
+				int k = 0;
+				for (i = 0; i < numRows; i++)
+				{
+					if (!isDt) break;
+					wxString text = GetCellValue(i, cl);
+					if (GetRowSize(i) > 0) {
 
+						if (dtType == -1) {
+							if (dt.ParseISOCombined(text, ' ')) {
+								dtType = 0;
+							}
+							else if (dt.ParseDateTime(text)) {
+								dtType = 1;
+							}
+
+
+						}
+						if (dtType>=0) {
+							parseDT = false;
+							if (dtType == 0 && dt.ParseISOCombined(text, ' ')) parseDT = true; 
+							if (dtType == 1 && dt.ParseDateTime(text)) parseDT = true;
+							if (parseDT) {
+								if (k == 0) { dt_prev = dt; k++; continue; }
+								tmp = dt - dt_prev;
+								if (k == 1) { sp = tmp; dt_prev = dt; k++; continue; }
+								if (tmp.GetMilliseconds() != sp.GetMilliseconds()) {
+									wxGridCellAttr* pAttr = new wxGridCellAttr;
+									
+									pAttr->SetBackgroundColour(*wxYELLOW);
+									SetRowAttr(i, pAttr);
+									err++;
+								}
+								dt_prev = dt;
+							}
+							else noformat++;
+						};
+						k++;
+					};
+					if (tmp.GetDays()>0) ss = tmp.Format("delta Days %D Hours:%H Min:%M Sec:%S");
+					else if (tmp.GetHours() > 0) ss = tmp.Format("delta Hours:%H Min:%M Sec:%S");
+						else if (tmp.GetMinutes() > 0) ss = tmp.Format("delta Min:%M Sec:%S");
+							else if (tmp.GetSeconds() > 0) ss = tmp.Format("delta Sec:%S");
+							else ss = tmp.Format("delta MSec:%l");
+
+					
+				}
+			}
+			
+			if (dtType==-1) ss= wxString::Format("No timestamp(date) column type",err);
+			else {
+				ss = wxString::Format("Unsequence rows: %d,bad format rows: %d,%s", err, noformat,ss);
+
+			}
+			
+	}
+	return ss;
+}
 wxString ctlSQLResult::SummaryColumn()
 {
 			//ce=cells.Item(0);
diff --git a/frm/frmQuery.cpp b/frm/frmQuery.cpp
index c4827ef..d85a064 100644
--- a/frm/frmQuery.cpp
+++ b/frm/frmQuery.cpp
@@ -124,6 +124,7 @@ BEGIN_EVENT_TABLE(frmQuery, pgFrame)
 	EVT_MENU(MNU_COPY_INLIST,       frmQuery::OnCopy_InList)
 	EVT_MENU(MNU_COPY_WHERELIST,	frmQuery::OnCopy_WhereList)
 	EVT_MENU(MNU_CLEAR_FILTER,      frmQuery::OnClear_Filter)
+	EVT_MENU(MNU_CHECK_COLUMN_DATE, frmQuery::OnCheck_Column_Date)
 	EVT_MENU(MNU_FIND,              frmQuery::OnSearchReplace)
 	EVT_MENU(MNU_UNDO,              frmQuery::OnUndo)
 	EVT_MENU(MNU_REDO,              frmQuery::OnRedo)
@@ -2092,17 +2093,23 @@ void frmQuery::OnLabelRightClick(wxGridEvent &event)
 	xmenu->Append(MNU_PASTE, _("&Paste"), _("Paste data from the clipboard."));
 	xmenu->Append(MNU_DELETE, _("&Delete"), _("Delete selected rows."));
 	xmenu->Append(MNU_SUMMARY_COL, _("Summary"), _("Summary selected cells."));
+	xmenu->Append(MNU_CHECK_COLUMN_DATE, _("Check the sequence of dates"), _("Check the sequence of dates"));
 	xmenu->Append(MNU_COPY_INSERT, _("Copy Insert format"), _("Copy Insert format."));
 	xmenu->Append(MNU_COPY_INLIST, _("IN LIST format copy"), _("Copy In list format."));
 	xmenu->Append(MNU_COPY_WHERELIST, _("WHERE LIST format copy"), _("Copy where list format."));
-	
 	xmenu->Append(MNU_CLEAR_FILTER, _("Clear filter"), _("Clear filter"));
+
+	xmenu->Enable(MNU_CHECK_COLUMN_DATE, sqlResult->GetSelectedCols().GetCount() > 0);
+	xmenu->Enable(MNU_SUMMARY_COL, sqlResult->IsSelection());
+	xmenu->Enable(MNU_COPY_INLIST, sqlResult->IsSelection());
+	xmenu->Enable(MNU_COPY_WHERELIST, sqlResult->IsSelection());
 	
 	if ((rows.GetCount()))
 	{
 		xmenu->Enable(MNU_COPY, true);
 		xmenu->Enable(MNU_DELETE, true);
 		xmenu->Enable(MNU_PASTE, true);
+		
 	}
 	else
 	{
@@ -2119,7 +2126,7 @@ void frmQuery::OnCopy_Insert(wxCommandEvent &ev)
 	{
 		wxString s=wxT("Insert into format copy buffer.");
 		sqlResult->Copy(1);
-		SetStatusText(s, STATUSPOS_POS);
+		SetStatusText(s, STATUSPOS_MSGS);
 	}
 }
 void frmQuery::OnCopy_InList(wxCommandEvent& ev)
@@ -2128,7 +2135,7 @@ void frmQuery::OnCopy_InList(wxCommandEvent& ev)
 	{
 		wxString s = wxT("In list format copy buffer.");
 		sqlResult->Copy(2);
-		SetStatusText(s, STATUSPOS_POS);
+		SetStatusText(s, STATUSPOS_MSGS);
 	}
 }
 void frmQuery::OnCopy_WhereList(wxCommandEvent& ev)
@@ -2137,7 +2144,7 @@ void frmQuery::OnCopy_WhereList(wxCommandEvent& ev)
 	{
 		wxString s = wxT("Where list format copy buffer.");
 		sqlResult->Copy(3);
-		SetStatusText(s, STATUSPOS_POS);
+		SetStatusText(s, STATUSPOS_MSGS);
 	}
 }
 void frmQuery::OnCellLeftDClick(wxGridEvent &event)
@@ -2162,6 +2169,14 @@ void frmQuery::OnClear_Filter(wxCommandEvent &ev)
 		isfilterresult=false;
 	}
 }
+void frmQuery::OnCheck_Column_Date(wxCommandEvent& ev)
+{
+	//	if (currentControl() == sqlResult)
+	{
+		wxString s = sqlResult->CheckSelColumnDate();
+		SetStatusText(s, STATUSPOS_MSGS);
+	}
+}
 
 void frmQuery::OnSummary_Column(wxCommandEvent &ev)
 {
diff --git a/include/ctl/ctlSQLGrid.h b/include/ctl/ctlSQLGrid.h
index b80b366..7419c48 100644
--- a/include/ctl/ctlSQLGrid.h
+++ b/include/ctl/ctlSQLGrid.h
@@ -56,6 +56,7 @@ public:
 	void SetRowGroup(int row);
 	GroupRows *grp;
 	int generatesql; // 0 -νες, 1 - insert , 2 - in_list
+	wxString sqlquerytext;
 	WX_DECLARE_STRING_HASH_MAP( int, ColKeySizeHashMap );
 
 	DECLARE_DYNAMIC_CLASS(ctlSQLGrid)
diff --git a/include/ctl/ctlSQLResult.h b/include/ctl/ctlSQLResult.h
index 45e11d9..3e5796c 100644
--- a/include/ctl/ctlSQLResult.h
+++ b/include/ctl/ctlSQLResult.h
@@ -47,6 +47,7 @@ public:
 
 	wxString OnGetItemText(long item, long col) const;
 	wxString SummaryColumn();
+	wxString CheckSelColumnDate();
 	void ClearFilter();
 	bool IsColText(int col);
 	bool hasRowNumber()
@@ -75,7 +76,6 @@ public:
 	wxArrayString colNames;
 	wxArrayString colTypes;
 	wxArrayLong colTypClasses;
-	wxString sqlquerytext;
 private:
 	pgQueryThread *thread;
 	pgConn *conn;
diff --git a/include/frm/frmQuery.h b/include/frm/frmQuery.h
index efc8878..1feb48e 100644
--- a/include/frm/frmQuery.h
+++ b/include/frm/frmQuery.h
@@ -217,6 +217,7 @@ private:
 	void OnCopy_InList(wxCommandEvent& event);
 	void OnCopy_WhereList(wxCommandEvent& event);
 	void OnClear_Filter(wxCommandEvent &event);
+	void OnCheck_Column_Date(wxCommandEvent& ev);
 	void OnSearchReplace(wxCommandEvent &event);
 	void OnUndo(wxCommandEvent &event);
 	void OnRedo(wxCommandEvent &event);
diff --git a/include/frm/menu.h b/include/frm/menu.h
index 817bc38..e703170 100644
--- a/include/frm/menu.h
+++ b/include/frm/menu.h
@@ -80,6 +80,7 @@ enum
 	MNU_COPY_INLIST,
 	MNU_COPY_WHERELIST,
 	MNU_CLEAR_FILTER,
+	MNU_CHECK_COLUMN_DATE,
 	MNU_AUTOROLLBACK,
 	MNU_AUTOCOMMIT,
 	MNU_CLEARHISTORY,