#include <LcsClusterNode.h>
Public Attributes | |
| LcsBatchMode | mode |
| Type of batch: compressed - only distinct values are stored for the column fixed - values are stored as fixed size records variable - records are stored as variable sizes but duplicates are not removed. | |
| uint | nRow |
| Number of rows in the batch. | |
| uint | nVal |
| Number of values in the batch. | |
| uint | nValHighMark |
| Number of values in the column corresponding to the batch that have already been written into the cluster page. | |
| uint | oVal |
| Offset in the cluster page where the batch starts. | |
| uint | oLastValHighMark |
| Offset in the cluster page corresponding to the last value for this batch that has already been written into the cluster page. | |
| uint | recSize |
| Size of batch records in fixed mode case. | |
Definition at line 42 of file LcsClusterNode.h.
Type of batch: compressed - only distinct values are stored for the column fixed - values are stored as fixed size records variable - records are stored as variable sizes but duplicates are not removed.
Definition at line 52 of file LcsClusterNode.h.
Number of rows in the batch.
Definition at line 57 of file LcsClusterNode.h.
Referenced by LcsClusterNodeWriter::describeLastBatch(), LcsClusterDump::dump(), LcsClusterReader::getRangeSize(), LcsClusterNodeWriter::moveFromIndexToTemp(), LcsClusterNodeWriter::moveFromTempToIndex(), LcsClusterReader::positionInBlock(), LcsClusterReader::setUpBlock(), and LcsColumnReader::sync().
Number of values in the batch.
In the case of compressed mode, this is the number of distinct values. In the other cases, it equals nRows.
Definition at line 64 of file LcsClusterNode.h.
Referenced by LcsClusterDump::dump(), LcsClusterNodeWriter::moveFromIndexToTemp(), LcsClusterNodeWriter::moveFromTempToIndex(), and LcsColumnReader::sync().
Number of values in the column corresponding to the batch that have already been written into the cluster page.
Definition at line 70 of file LcsClusterNode.h.
Offset in the cluster page where the batch starts.
Contents of the batch are the following for each mode: compressed - offsets to the values followed by bit vectors variable - offsets to the values at the bottom of the page fixed - records themselves
Definition at line 79 of file LcsClusterNode.h.
Referenced by LcsClusterDump::dump(), LcsClusterNodeWriter::moveFromIndexToTemp(), LcsClusterNodeWriter::moveFromTempToIndex(), and LcsColumnReader::sync().
Offset in the cluster page corresponding to the last value for this batch that has already been written into the cluster page.
Definition at line 85 of file LcsClusterNode.h.
Size of batch records in fixed mode case.
Definition at line 90 of file LcsClusterNode.h.
Referenced by LcsClusterNodeWriter::describeLastBatch(), LcsClusterDump::dump(), LcsColumnReader::getFixedValue(), LcsClusterNodeWriter::moveFromIndexToTemp(), and LcsClusterNodeWriter::moveFromTempToIndex().
1.5.1