private Expression TranslateInternal(Expression expression, TranslateOptions options)
{
var syntax = TranslateScope.Current.Context.Database.Provider.GetService <ISyntaxProvider>();
var translation = QueryBinder.Bind(expression, syntax);
translation = LogicalDeleteFlagRewriter.Rewrite(translation);
translation = GlobalQueryPolicyRewriter.Rewrite(translation);
translation = AggregateRewriter.Rewrite(translation);
translation = UnusedColumnRemover.Remove(translation);
translation = RedundantColumnRemover.Remove(translation);
translation = RedundantSubqueryRemover.Remove(translation);
translation = RedundantJoinRemover.Remove(translation);
var bound = RelationshipBinder.Bind(translation);
if (bound != translation)
{
translation = bound;
translation = RedundantColumnRemover.Remove(translation);
translation = RedundantJoinRemover.Remove(translation);
}
translation = ComparisonRewriter.Rewrite(translation);
var rewritten = RelationshipIncluder.Include(TranslateScope.Current.Context, translation);
if (rewritten != translation)
{
translation = rewritten;
translation = UnusedColumnRemover.Remove(translation);
translation = RedundantColumnRemover.Remove(translation);
translation = RedundantSubqueryRemover.Remove(translation);
translation = RedundantJoinRemover.Remove(translation);
}
rewritten = SingletonProjectionRewriter.Rewrite(translation);
if (rewritten != translation)
{
translation = rewritten;
translation = UnusedColumnRemover.Remove(translation);
translation = RedundantColumnRemover.Remove(translation);
translation = RedundantSubqueryRemover.Remove(translation);
translation = RedundantJoinRemover.Remove(translation);
}
rewritten = ClientJoinedProjectionRewriter.Rewrite(translation);
if (rewritten != translation)
{
translation = rewritten;
translation = UnusedColumnRemover.Remove(translation);
translation = RedundantColumnRemover.Remove(translation);
translation = RedundantSubqueryRemover.Remove(translation);
translation = RedundantJoinRemover.Remove(translation);
}
translation = BuildExpression(translation);
return(translation);
}
protected virtual Expression BuildExpression(Expression expression)
{
expression = UnusedColumnRemover.Remove(expression);
expression = RedundantColumnRemover.Remove(expression);
expression = RedundantSubqueryRemover.Remove(expression);
var rewritten = CrossApplyRewriter.Rewrite(expression);
rewritten = CrossJoinRewriter.Rewrite(rewritten);
if (rewritten != expression)
{
expression = rewritten;
expression = UnusedColumnRemover.Remove(expression);
expression = RedundantSubqueryRemover.Remove(expression);
expression = RedundantJoinRemover.Remove(expression);
expression = RedundantColumnRemover.Remove(expression);
}
return(expression);
}
public static Expression Remove(Expression expression)
{
expression = new RedundantSubqueryRemover().Visit(expression);
expression = SubqueryMerger.Merge(expression);
return(expression);
}
private Expression TranslateInternal(TranslateContext transContext, Expression expression)
{
var translation = QueryBinder.Bind(transContext, expression);
translation = LogicalDeleteFlagRewriter.Rewrite(translation);
translation = GlobalQueryPolicyRewriter.Rewrite(translation);
translation = AggregateRewriter.Rewrite(translation);
translation = UnusedColumnRemover.Remove(translation);
translation = RedundantColumnRemover.Remove(translation);
translation = RedundantSubqueryRemover.Remove(translation);
translation = RedundantJoinRemover.Remove(translation);
var bound = RelationshipBinder.Bind(transContext, translation);
if (bound != translation)
{
translation = bound;
translation = RedundantColumnRemover.Remove(translation);
translation = RedundantJoinRemover.Remove(translation);
}
translation = ComparisonRewriter.Rewrite(translation);
Expression rewritten;
if (transContext.QueryPolicy != null)
{
rewritten = RelationshipIncluder.Include(transContext, translation);
if (rewritten != translation)
{
translation = rewritten;
translation = UnusedColumnRemover.Remove(translation);
translation = RedundantColumnRemover.Remove(translation);
translation = RedundantSubqueryRemover.Remove(translation);
translation = RedundantJoinRemover.Remove(translation);
}
}
rewritten = SingletonProjectionRewriter.Rewrite(translation);
if (rewritten != translation)
{
translation = rewritten;
translation = UnusedColumnRemover.Remove(translation);
translation = RedundantColumnRemover.Remove(translation);
translation = RedundantSubqueryRemover.Remove(translation);
translation = RedundantJoinRemover.Remove(translation);
}
rewritten = ClientJoinedProjectionRewriter.Rewrite(translation);
if (rewritten != translation)
{
translation = rewritten;
translation = UnusedColumnRemover.Remove(translation);
translation = RedundantColumnRemover.Remove(translation);
translation = RedundantSubqueryRemover.Remove(translation);
translation = RedundantJoinRemover.Remove(translation);
}
translation = BuildExpression(translation);
return(translation);
}