public static void LoadLongFields(int startPos, CompressedDataRecord record)
{
var longColIndex = 0;
bool isLob;
var prevLength = 0;
for (var i = 0; i < record.ColumnCount; i++)
{
if (record.GetCdByte(i) == 10)
{
var field = new CompressedRecordField(record.Structure.Columns[i], record);
field.Length = DecodeOffset(record.ColOffsetArray[longColIndex]) - prevLength;
field.Data = new byte[field.Length];
field.Offset = startPos + prevLength;
isLob = (record.ColOffsetArray[longColIndex] & 0x8000) == 0x8000;
Array.Copy(record.Page.PageData, field.Offset, field.Data, 0, field.Length);
if (record.Page.CompressionInformation != null && record.Page.CompressionInformation.AnchorRecord != null)
{
field.AnchorField = record.Page.CompressionInformation.AnchorRecord.Fields.Find(
delegate(RecordField f)
{
return(f.Column.ColumnId == i);
});
}
record.Fields.Add(field);
if (isLob)
{
LoadLobField(field, field.Data, field.Offset);
}
else
{
field.Mark("Value", field.Offset, field.Length);
}
record.Mark("FieldsArray", field.Name, record.Fields.Count - 1);
prevLength = DecodeOffset(record.ColOffsetArray[longColIndex]);
longColIndex++;
}
}
}
public static void LoadShortFields(CompressedDataRecord record, bool hasDownPagePointer)
{
int offset;
var index = 0;
offset = record.SlotOffset + 1 + record.ColumnCountBytes + (record.ColumnCount / 2) + (record.ColumnCount % 2);
for (var i = 0; i < record.ColumnCount; i++)
{
if (record.GetCdByte(i) != 10)
{
CompressedRecordField field;
field = new CompressedRecordField(record.Structure.Columns[i], record);
field.Compressed = true;
if (field.Column.DataType == SqlDbType.Bit)
{
field.Length = 1;
field.Compressed = true;
field.Data = new byte[] { record.GetCdByte(i) };
}
else
{
var size = GetCdArrayItemSize(record.GetCdByte(i));
field.IsNull = (record.GetCdByte(i) == 0);
field.Length = size;
field.PageSymbol = (record.GetCdByte(i) > 10);
if (size > 0)
{
field.Data = new byte[size];
Array.Copy(record.Page.PageData, offset, field.Data, 0, size);
field.Offset = offset;
offset += size;
}
}
if (record.Page.CompressionInformation != null && record.Page.CompressionInformation.AnchorRecord != null)
{
field.AnchorField = record.Page.CompressionInformation.AnchorRecord.Fields.Find(
delegate(RecordField f)
{
return(f.Column.ColumnId == i + 1);
});
}
field.Mark("Value", field.Offset, field.Length);
record.Mark("FieldsArray", field.Name, index);
index++;
record.Fields.Add(field);
}
}
}
