New column page

Shows SQL for columns ALTER TABLE ... [ADD|DROP] COLUMN combines a selection
of multiple columns into a single alter table.
Show collation in list of columns.

(order of columns isn't what is should be but that should maybe be fixed
by a generic column selection and ordering mechanism that knows what the
default sort should be)

pglablib/PgCollation.h

@@ -0,0 +1,25 @@
+#ifndef PGCOLLATION_H
+#define PGCOLLATION_H
+
+#include "PgNamespaceObject.h"
+#include "PgOwnedObject.h"
+#include <QString>
+#include <libpq-fe.h>
+#include "Pgsql_Value.h"
+//#include <vector>
+
+class PgCollation: public PgNamespaceObject, public PgOwnedObject {
+public:
+	using PgNamespaceObject::PgNamespaceObject;
+
+//	Oid oid; // oid
+//    QString collname; // name
+//    Oid collnamespace; // oid
+//	Oid collowner; // oid
+	int32_t collencoding; // integer
+	QString collcollate; // name
+	QString collctype; // name
+
+};
+
+#endif // PGCOLLATION_H