/home/sebastian/gpudbms/trunk/cogadb/src/core/base_column.cpp File Reference

#include <core/base_column.hpp>
#include <core/column.hpp>
#include <iostream>

Include dependency graph for base_column.cpp:

Namespaces
namespace	CoGaDB
	The global namespace of the programming tasks, to avoid name claches with other libraries.
Functions
const ColumnPtr	CoGaDB::createColumn (AttributeType type, const std::string &name)
	Column factory function, creates an empty materialized column.
PositionListPtr	CoGaDB::computePositionListUnion (PositionListPtr tids1, PositionListPtr tids2)
	computes the union of two position lists, e.g., to compute a logical OR in a complex selection, the tid lists resulting from several selections need to be united
PositionListPtr	CoGaDB::computePositionListIntersection (PositionListPtr tids1, PositionListPtr tids2)
	computes the union of two position lists, e.g., to compute a logical AND in a complex selection, the tid lists resulting from several selections need to be intersected