private TranslateResult Translate(Expression expression)
{
ProjectionExpression projection = expression as ProjectionExpression;
if (projection == null)
{
expression = Evaluator.PartialEval(expression, CanBeEvaluatedLocally, log);
expression = QueryBinder.Bind(this, expression, log);
expression = AggregateRewriter.Rewrite(expression, log);
expression = OrderByRewriter.Rewrite(expression, log);
expression = UnusedColumnRemover.Remove(expression, log);
expression = RedundantSubqueryRemover.Remove(expression, log);
projection = (ProjectionExpression)expression;
}
string commandText = QueryFormatter.Format(projection.Source, log);
string[] columns = projection.Source.Columns.Select(c => c.Name).ToArray();
LambdaExpression projector = ProjectionBuilder.Build(projection.Projector, projection.Source.Alias, columns, log);
return(new TranslateResult(commandText, projector, projection.Aggregator));
}