Examples with HllSketchBuildAggregatorFactory org.apache.druid.query.aggregation.datasketches.hll.HllSketchBuildAggregatorFactory used on opensource projects

Example 6 with HllSketchBuildAggregatorFactory

use of org.apache.druid.query.aggregation.datasketches.hll.HllSketchBuildAggregatorFactory in project druid by druid-io.

the class HllSketchSqlAggregatorTest method createQuerySegmentWalker.

@Override
public SpecificSegmentsQuerySegmentWalker createQuerySegmentWalker() throws IOException {
    HllSketchModule.registerSerde();
    final QueryableIndex index = IndexBuilder.create().tmpDir(temporaryFolder.newFolder()).segmentWriteOutMediumFactory(OffHeapMemorySegmentWriteOutMediumFactory.instance()).schema(new IncrementalIndexSchema.Builder().withMetrics(new CountAggregatorFactory("cnt"), new DoubleSumAggregatorFactory("m1", "m1"), new HllSketchBuildAggregatorFactory("hllsketch_dim1", "dim1", null, null, ROUND)).withRollup(false).build()).rows(CalciteTests.ROWS1).buildMMappedIndex();
    walker = new SpecificSegmentsQuerySegmentWalker(conglomerate).add(DataSegment.builder().dataSource(CalciteTests.DATASOURCE1).interval(index.getDataInterval()).version("1").shardSpec(new LinearShardSpec(0)).size(0).build(), index);
    return walker;
}