/// <summary>
/// Renders a UNION clause
/// </summary>
/// <param name="union">Union definition</param>
/// <returns>Generated SQL statement</returns>
public virtual string RenderUnion(OmUnion union)
{
StringBuilder builder = new StringBuilder();
foreach (OmUnionItem item in union.Items)
{
if (item != union.Items[0])
{
builder.AppendFormat(" union {0} ", (item.RepeatingAction == UnionMod.All) ? "all" : "");
}
builder.Append(RenderSelect(item.Query));
}
return(builder.ToString());
}
internal Union()
{
Uni = new OmUnion();
}
internal From(OmUnion union, string alias)
{
Term = FromTerm.Union(union, alias);
}
