public static Expression Clean(Expression expression, bool filter, HeavyProfiler.Tracer log)
{
Expression clean = ExpressionCleaner.Clean(expression);
log.Switch("OvrLdSmp");
Expression simplified = OverloadingSimplifier.Simplify(clean);
log.Switch("QrFlr");
Expression filtered = QueryFilterer.Filter(simplified, filter);
return(filtered);
}
internal static Expression Optimize(Expression binded, QueryBinder binder, AliasGenerator aliasGenerator, HeavyProfiler.Tracer log)
{
log.Switch("Aggregate");
Expression rewrited = AggregateRewriter.Rewrite(binded);
log.Switch("EntityCompleter");
Expression completed = EntityCompleter.Complete(rewrited, binder);
log.Switch("AliasReplacer");
Expression replaced = AliasProjectionReplacer.Replace(completed, aliasGenerator);
log.Switch("OrderBy");
Expression orderRewrited = OrderByRewriter.Rewrite(replaced);
log.Switch("Rebinder");
Expression rebinded = QueryRebinder.Rebind(orderRewrited);
log.Switch("UnusedColumn");
Expression columnCleaned = UnusedColumnRemover.Remove(rebinded);
log.Switch("Redundant");
Expression subqueryCleaned = RedundantSubqueryRemover.Remove(columnCleaned);
log.Switch("Condition");
Expression rewriteConditions = ConditionsRewriter.Rewrite(subqueryCleaned);
log.Switch("Scalar");
Expression scalar = ScalarSubqueryRewriter.Rewrite(rewriteConditions);
return(scalar);
}