public override object VisitOrdering_term([NotNull] SqlParser.Ordering_termContext context)
{
var columnExpression = VisitExpr(context.expr()) as ColumnExpression;
if (columnExpression == null)
{
throw new SQLParseException("Only Column be set in the Order by clause.");
}
return(new OrderbyColumn()
{
Column = columnExpression,
Order = context.K_ASC() != null ? "ASC" : context.K_DESC() != null ? "DESC" : "ASC"
});
}
/// <summary>
/// Visit a parse tree produced by <see cref="SqlParser.ordering_term"/>.
/// <para>
/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
/// on <paramref name="context"/>.
/// </para>
/// </summary>
/// <param name="context">The parse tree.</param>
/// <return>The visitor result.</return>
public virtual Result VisitOrdering_term([NotNull] SqlParser.Ordering_termContext context)
{
return(VisitChildren(context));
}
