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/PgCollationContainer.h

@@ -0,0 +1,25 @@
+#ifndef PGCOLLATIONCONTAINER_H
+#define PGCOLLATIONCONTAINER_H
+
+#include "PgContainer.h"
+#include "PgCollation.h"
+
+namespace Pgsql {
+
+	class Result;
+
+}
+
+
+class PgCollationContainer: public PgContainer<PgCollation> {
+public:
+	using PgContainer<PgCollation>::PgContainer;
+
+	virtual std::string getLoadQuery() const override;
+protected:
+	PgCollation loadElem(const Pgsql::Row &row) override;
+private:
+};
+
+
+#endif // PGCOLLATIONCONTAINER_H