Examples with ProjResult org.apache.drill.exec.physical.resultSet.impl.ProjectionFilter.ProjResult used on opensource projects

Example 1 with ProjResult

use of org.apache.drill.exec.physical.resultSet.impl.ProjectionFilter.ProjResult in project drill by apache.

the class ColumnBuilder method buildSingleDict.

private ColumnState buildSingleDict(ContainerState parent, ColumnMetadata columnSchema) {
    final ProjectionFilter projFilter = parent.projection();
    final ProjResult projResult = projFilter.projection(columnSchema);
    // Create the dict's offset vector.
    final DictVector dictVector;
    final UInt4Vector offsetVector;
    if (projResult.isProjected) {
        // Creating the dict vector will create its contained vectors if we
        // give it a materialized field with children. So, instead pass a clone
        // without children so we can add them.
        final ColumnMetadata dictColMetadata = columnSchema.cloneEmpty();
        // vectors can be cached.
        assert columnSchema.tupleSchema().isEmpty();
        dictVector = new DictVector(dictColMetadata.schema(), parent.loader().allocator(), null);
        offsetVector = dictVector.getOffsetVector();
    } else {
        dictVector = null;
        offsetVector = null;
    }
    // Create the writer using the offset vector
    final AbstractObjectWriter writer = ObjectDictWriter.buildDict(columnSchema, dictVector, new ArrayList<>());
    // Wrap the offset vector in a vector state
    final VectorState offsetVectorState;
    if (!projResult.isProjected) {
        offsetVectorState = new NullVectorState();
    } else {
        offsetVectorState = new OffsetVectorState((((AbstractArrayWriter) writer.dict()).offsetWriter()), offsetVector, writer.dict().entry().events());
    }
    final VectorState mapVectorState = new TupleState.SingleDictVectorState(dictVector, offsetVectorState);
    // Assemble it all into the column state.
    final SingleDictState dictArrayState = new SingleDictState(parent.loader(), parent.vectorCache().childCache(columnSchema.name()), projResult.mapFilter);
    return new TupleState.DictColumnState(dictArrayState, writer, mapVectorState, parent.isVersioned());
}

Example 2 with ProjResult

use of org.apache.drill.exec.physical.resultSet.impl.ProjectionFilter.ProjResult in project drill by apache.

the class TestProjectionFilter method testProjectList.

@Test
public void testProjectList() {
    RequestedTuple projSet = Projections.parse(RowSetTestUtils.projectList("a", "c", "m.a"));
    ProjectionFilter filter = new DirectProjectionFilter(projSet, EmptyErrorContext.INSTANCE);
    assertTrue(filter.isProjected("a"));
    assertTrue(filter.projection(A_COL).isProjected);
    assertFalse(filter.isProjected("b"));
    assertFalse(filter.projection(B_COL).isProjected);
    assertFalse(filter.isEmpty());
    ProjResult result = filter.projection(MAP_COL);
    assertTrue(result.isProjected);
    ProjectionFilter child = result.mapFilter;
    assertTrue(child.isProjected("a"));
    assertFalse(child.isProjected("b"));
    result = filter.projection(MAP_COL2);
    assertFalse(result.isProjected);
    assertSame(ProjectionFilter.PROJECT_NONE, result.mapFilter);
}

Example 3 with ProjResult

use of org.apache.drill.exec.physical.resultSet.impl.ProjectionFilter.ProjResult in project drill by apache.

the class TestProjectionFilter method testImplicitAll.

@Test
public void testImplicitAll() {
    ProjectionFilter filter = ProjectionFilter.PROJECT_ALL;
    assertTrue(filter.isProjected("a"));
    assertTrue(filter.projection(A_COL).isProjected);
    ColumnMetadata specialCol = MetadataUtils.newScalar("special", Types.optional(MinorType.BIGINT));
    specialCol.setBooleanProperty(ColumnMetadata.EXCLUDE_FROM_WILDCARD, true);
    assertFalse(filter.projection(specialCol).isProjected);
    assertFalse(filter.isEmpty());
    ProjResult result = filter.projection(MAP_COL);
    assertTrue(result.isProjected);
    assertSame(ProjectionFilter.PROJECT_ALL, result.mapFilter);
}

Example 4 with ProjResult

use of org.apache.drill.exec.physical.resultSet.impl.ProjectionFilter.ProjResult in project drill by apache.

the class TestProjectionFilter method testTypeFilter.

@Test
public void testTypeFilter() {
    TupleMetadata schema = new SchemaBuilder().add(A_COL.copy()).add(B_COL.copy()).addMap("m").add("a", MinorType.INT).resumeSchema().build();
    ProjectionFilter filter = new TypeProjectionFilter(schema, EmptyErrorContext.INSTANCE);
    assertFalse(filter.isEmpty());
    assertTrue(filter.isProjected("a"));
    assertTrue(filter.projection(A_COL).isProjected);
    assertTrue(filter.isProjected("b"));
    assertTrue(filter.projection(B_COL).isProjected);
    assertTrue(filter.isProjected("c"));
    assertTrue(filter.projection(MetadataUtils.newScalar("c", Types.required(MinorType.BIGINT))).isProjected);
    ColumnMetadata typeConflict = MetadataUtils.newScalar("a", Types.required(MinorType.BIGINT));
    try {
        filter.projection(typeConflict);
        fail();
    } catch (UserException e) {
        assertTrue(e.getMessage().contains("conflict"));
    }
    ColumnMetadata modeConflict = MetadataUtils.newScalar("a", Types.optional(MinorType.INT));
    try {
        filter.projection(modeConflict);
        fail();
    } catch (UserException e) {
        assertTrue(e.getMessage().contains("conflict"));
    }
    ProjResult result = filter.projection(MAP_COL);
    assertTrue(result.isProjected);
    ProjectionFilter child = result.mapFilter;
    assertTrue(child.isProjected("a"));
    assertTrue(child.isProjected("b"));
    result = filter.projection(MAP_COL2);
    assertTrue(result.isProjected);
    assertSame(ProjectionFilter.PROJECT_ALL, result.mapFilter);
    try {
        ColumnMetadata aMap = MetadataUtils.newMap("a", new TupleSchema());
        filter.projection(aMap);
        fail();
    } catch (UserException e) {
        assertTrue(e.getMessage().contains("type conflict"));
    }
}

Example 5 with ProjResult

use of org.apache.drill.exec.physical.resultSet.impl.ProjectionFilter.ProjResult in project drill by apache.

the class TestProjectionFilter method testEmptyProjectList.

@Test
public void testEmptyProjectList() {
    ProjectionFilter filter = new DirectProjectionFilter(Projections.projectNone(), EmptyErrorContext.INSTANCE);
    assertFalse(filter.isProjected("a"));
    assertFalse(filter.projection(A_COL).isProjected);
    assertTrue(filter.isEmpty());
    ProjResult result = filter.projection(MAP_COL);
    assertFalse(result.isProjected);
    assertSame(ProjectionFilter.PROJECT_NONE, result.mapFilter);
}