private IEnumerable <long> TakeFromTo(PartitionRowIDRange part, IEnumerable <long> rowIds)
{
foreach (var rowId in rowIds)
{
if (rowId < part.Low)
{
yield break;
}
if (rowId <= part.High)
{
yield return(RowIDUtil.ToRowID(part.PartitionID, rowId));
}
}
}
private IEnumerable <long> IsPartitionMatch(IReadTransactionContext tx, PartitionRowIDRange part,
IPartitionReader partition, ERowIDSortDirection sortDirection)
{
if (sortDirection == ERowIDSortDirection.Asc)
{
for (long rowId = part.Low; rowId <= part.High; rowId++)
{
if (IsMatch(partition, tx.ReadCache, rowId))
{
yield return(RowIDUtil.ToRowID(part.PartitionID, rowId));
}
}
}
else
{
for (long rowId = part.High; rowId >= part.Low; rowId--)
{
if (IsMatch(partition, tx.ReadCache, rowId))
{
yield return(RowIDUtil.ToRowID(part.PartitionID, rowId));
}
}
}
}