Examples with MergePhase io.crate.planner.node.dql.MergePhase used on opensource projects

Example 26 with MergePhase

use of io.crate.planner.node.dql.MergePhase in project crate by crate.

the class GroupByPlannerTest method testGroupByWithHavingAndNoLimit.

@Test
public void testGroupByWithHavingAndNoLimit() throws Exception {
    Merge planNode = e.plan("select count(*), name from users group by name having count(*) > 1");
    DistributedGroupBy distributedGroupBy = (DistributedGroupBy) planNode.subPlan();
    // reducer
    MergePhase mergePhase = distributedGroupBy.reducerMergeNode();
    // group projection
    //      outputs: name, count(*)
    Projection projection = mergePhase.projections().get(1);
    assertThat(projection, instanceOf(FilterProjection.class));
    FilterProjection filterProjection = (FilterProjection) projection;
    Symbol countArgument = ((Function) filterProjection.query()).arguments().get(0);
    assertThat(countArgument, instanceOf(InputColumn.class));
    // pointing to second output from group projection
    assertThat(((InputColumn) countArgument).index(), is(1));
    assertThat(mergePhase.outputTypes().get(0), equalTo(DataTypes.LONG));
    assertThat(mergePhase.outputTypes().get(1), equalTo(DataTypes.STRING));
    mergePhase = planNode.mergePhase();
    assertThat(mergePhase.outputTypes().get(0), equalTo(DataTypes.LONG));
    assertThat(mergePhase.outputTypes().get(1), equalTo(DataTypes.STRING));
}

Example 27 with MergePhase

use of io.crate.planner.node.dql.MergePhase in project crate by crate.

the class InsertPlannerTest method testInsertFromSubQueryDistributedGroupByPartitioned.

@Test
public void testInsertFromSubQueryDistributedGroupByPartitioned() throws Exception {
    Merge planNode = e.plan("insert into parted_pks (id, date) (select id, date from users group by id, date)");
    DistributedGroupBy groupBy = (DistributedGroupBy) planNode.subPlan();
    MergePhase mergePhase = groupBy.reducerMergeNode();
    assertThat(mergePhase.projections(), contains(instanceOf(GroupProjection.class), instanceOf(EvalProjection.class), instanceOf(ColumnIndexWriterProjection.class)));
    ColumnIndexWriterProjection projection = (ColumnIndexWriterProjection) mergePhase.projections().get(2);
    assertThat(projection.primaryKeys().size(), is(2));
    assertThat(projection.primaryKeys().get(0).fqn(), is("id"));
    assertThat(projection.primaryKeys().get(1).fqn(), is("date"));
    assertThat(projection.columnReferences().size(), is(1));
    assertThat(projection.columnReferences().get(0).ident().columnIdent().fqn(), is("id"));
    assertThat(projection.partitionedBySymbols().size(), is(1));
    assertThat(((InputColumn) projection.partitionedBySymbols().get(0)).index(), is(1));
    assertNotNull(projection.clusteredByIdent());
    assertThat(projection.clusteredByIdent().fqn(), is("id"));
    assertThat(projection.tableIdent().fqn(), is("doc.parted_pks"));
    MergePhase localMergeNode = planNode.mergePhase();
    assertThat(localMergeNode.projections().size(), is(1));
    assertThat(localMergeNode.projections().get(0), instanceOf(MergeCountProjection.class));
    assertThat(localMergeNode.finalProjection().get().outputs().size(), is(1));
}

Example 28 with MergePhase

use of io.crate.planner.node.dql.MergePhase in project crate by crate.

the class InsertPlannerTest method testInsertFromSubQueryReduceOnCollectorGroupBy.

@Test
public void testInsertFromSubQueryReduceOnCollectorGroupBy() throws Exception {
    Merge merge = e.plan("insert into users (id, name) (select id, arbitrary(name) from users group by id)");
    Collect collect = (Collect) merge.subPlan();
    RoutedCollectPhase collectPhase = ((RoutedCollectPhase) collect.collectPhase());
    assertThat(collectPhase.projections(), contains(instanceOf(GroupProjection.class), instanceOf(EvalProjection.class), instanceOf(ColumnIndexWriterProjection.class)));
    ColumnIndexWriterProjection columnIndexWriterProjection = (ColumnIndexWriterProjection) collectPhase.projections().get(2);
    assertThat(columnIndexWriterProjection.columnReferences(), contains(isReference("id"), isReference("name")));
    MergePhase mergePhase = merge.mergePhase();
    assertThat(mergePhase.projections(), contains(instanceOf(MergeCountProjection.class)));
}

Example 29 with MergePhase

use of io.crate.planner.node.dql.MergePhase in project crate by crate.

the class InsertPlannerTest method testInsertFromSubQueryWithoutLimit.

@Test
public void testInsertFromSubQueryWithoutLimit() throws Exception {
    Merge planNode = e.plan("insert into users (id, name) (select id, name from users)");
    Collect collect = (Collect) planNode.subPlan();
    RoutedCollectPhase collectPhase = ((RoutedCollectPhase) collect.collectPhase());
    assertThat(collectPhase.projections().size(), is(1));
    assertThat(collectPhase.projections().get(0), instanceOf(ColumnIndexWriterProjection.class));
    MergePhase localMergeNode = planNode.mergePhase();
    assertThat(localMergeNode.projections().size(), is(1));
    assertThat(localMergeNode.projections().get(0), instanceOf(MergeCountProjection.class));
}

Example 30 with MergePhase

use of io.crate.planner.node.dql.MergePhase in project crate by crate.

the class InsertPlannerTest method testGroupByHavingInsertInto.

@Test
public void testGroupByHavingInsertInto() throws Exception {
    Merge planNode = e.plan("insert into users (id, name) (select name, count(*) from users group by name having count(*) > 3)");
    DistributedGroupBy groupByNode = (DistributedGroupBy) planNode.subPlan();
    MergePhase mergePhase = groupByNode.reducerMergeNode();
    assertThat(mergePhase.projections(), contains(instanceOf(GroupProjection.class), instanceOf(FilterProjection.class), instanceOf(EvalProjection.class), instanceOf(ColumnIndexWriterProjection.class)));
    FilterProjection filterProjection = (FilterProjection) mergePhase.projections().get(1);
    assertThat(filterProjection.outputs().size(), is(2));
    assertThat(filterProjection.outputs().get(0), instanceOf(InputColumn.class));
    assertThat(filterProjection.outputs().get(1), instanceOf(InputColumn.class));
    InputColumn inputColumn = (InputColumn) filterProjection.outputs().get(0);
    assertThat(inputColumn.index(), is(0));
    inputColumn = (InputColumn) filterProjection.outputs().get(1);
    assertThat(inputColumn.index(), is(1));
    MergePhase localMergeNode = planNode.mergePhase();
    assertThat(localMergeNode.projections().size(), is(1));
    assertThat(localMergeNode.projections().get(0), instanceOf(MergeCountProjection.class));
    assertThat(localMergeNode.finalProjection().get().outputs().size(), is(1));
}