Finds and returns all aggregates within an expression.
Inheritance: Shaolinq.Persistence.Linq.Expressions.SqlExpressionVisitor
AggregateSubqueryFinder Class Documentation
示例#1
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        public static List<Expression> Find(Expression expression)
        {
            var finder = new AggregateSubqueryFinder();

            finder.Visit(expression);

            return finder.aggregatesFound;
        }
示例#2
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        public static List <Expression> Find(Expression expression)
        {
            var finder = new AggregateSubqueryFinder();

            finder.Visit(expression);

            return(finder.aggregatesFound);
        }
示例#3
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 private SqlAggregateSubqueryRewriter(Expression expr)
 {
     this.aggregateSubqueryInstances       = new Dictionary <SqlAggregateSubqueryExpression, Expression>();
     this.aggregateSubqueriesBySelectAlias = AggregateSubqueryFinder.Find(expr).OfType <SqlAggregateSubqueryExpression>().ToLookup(a => a.GroupByAlias);
 }