private void GatherUnionedSubqueriesInUsedViews(T_Tile query)
{
if (query != null)
{
if (m_qp.GetOpKind(query) != TileOpKind.Union)
{
m_usedViews[query] = TileOpKind.Union;
}
else
{
GatherUnionedSubqueriesInUsedViews(m_qp.GetArg1(query));
GatherUnionedSubqueriesInUsedViews(m_qp.GetArg2(query));
}
}
}