Examples with ScanStats org.apache.drill.exec.physical.base.ScanStats used on opensource projects

Example 6 with ScanStats

use of org.apache.drill.exec.physical.base.ScanStats in project drill by apache.

the class HiveScan method getScanStats.

@Override
public ScanStats getScanStats() {
    try {
        final HiveStats stats = metadataProvider.getStats(hiveReadEntry);
        logger.debug("HiveStats: {}", stats.toString());
        // Hive's native reader is neither memory efficient nor fast. Increase the CPU cost
        // by a factor to let the planner choose HiveDrillNativeScan over HiveScan with SerDes.
        float cpuCost = 1 * getSerDeOverheadFactor();
        return new ScanStats(GroupScanProperty.NO_EXACT_ROW_COUNT, stats.getNumRows(), cpuCost, stats.getSizeInBytes());
    } catch (final IOException e) {
        throw new DrillRuntimeException(e);
    }
}