protected override SqlProvider VisitContainsTable(ContainsTableProvider provider)
{
SqlContainsTable fromTable;
QueryParameterBinding[] bindings;
var stringTypeMapping = Driver.GetTypeMapping(StringType);
var criteriaBinding = new QueryParameterBinding(
stringTypeMapping, provider.SearchCriteria.Invoke, QueryParameterBindingType.Regular);
var index = provider.PrimaryIndex.Resolve(Handlers.Domain.Model);
var table = Mapping[index.ReflectedType];
var columns = provider.Header.Columns.Select(column => column.Name).ToList();
var targetColumnNames = provider.TargetColumns.Select(c => c.Name).ToArray();
if (provider.TopN == null)
{
fromTable = SqlDml.ContainsTable(table, criteriaBinding.ParameterReference, columns, targetColumnNames);
bindings = new[] { criteriaBinding };
}
else
{
var intTypeMapping = Driver.GetTypeMapping(Int32Type);
var topNBinding = new QueryParameterBinding(intTypeMapping, context => provider.TopN.Invoke(context), QueryParameterBindingType.Regular);
fromTable = SqlDml.ContainsTable(table, criteriaBinding.ParameterReference, columns, targetColumnNames, topNBinding.ParameterReference);
bindings = new[] { criteriaBinding, topNBinding };
}
var fromTableRef = SqlDml.QueryRef(fromTable);
var select = SqlDml.Select(fromTableRef);
select.Columns.Add(fromTableRef.Columns[0]);
select.Columns.Add(SqlDml.Cast(fromTableRef.Columns[1], SqlType.Double), "RANK");
return(CreateProvider(select, bindings, provider));
}