Examples with RowSet org.apache.drill.exec.physical.rowSet.RowSet used on opensource projects

Example 81 with RowSet

use of org.apache.drill.exec.physical.rowSet.RowSet in project drill by apache.

the class TestScanLifecycleTwoReaders method doTestShrinkingSchema.

private void doTestShrinkingSchema(boolean allowSchemaChange) {
    ScanLifecycleBuilder builder = new ScanLifecycleBuilder();
    builder.allowSchemaChange(allowSchemaChange);
    builder.readerFactory(new TwoReaderFactory() {

        @Override
        public ManagedReader firstReader(SchemaNegotiator negotiator) {
            return new MockLateSchemaReader(negotiator, 1);
        }

        @Override
        public ManagedReader secondReader(SchemaNegotiator negotiator) {
            return new MockSingleColReader(negotiator);
        }
    });
    ScanLifecycle scan = buildScan(builder);
    verifyStandardReader(scan, 0);
    RowBatchReader reader = scan.nextReader();
    assertTrue(reader.open());
    assertTrue(reader.next());
    RowSet expected = fixture.rowSetBuilder(SCHEMA).addRow(101, null).addRow(102, null).build();
    RowSetUtilities.verify(expected, fixture.wrap(reader.output()));
    assertFalse(reader.next());
    reader.close();
    scan.close();
}

Example 82 with RowSet

use of org.apache.drill.exec.physical.rowSet.RowSet in project drill by apache.

the class TestScanLifecycleBasics method testLateSchemaWithCustomType.

/**
 * Test SELECT * from an early-schema table of () (that is,
 * a schema that consists of zero columns.
 */
@Test
public void testLateSchemaWithCustomType() {
    ScanLifecycleBuilder builder = new ScanLifecycleBuilder();
    builder.projection(RowSetTestUtils.projectList("a", "c"));
    builder.nullType(Types.optional(MinorType.VARCHAR));
    builder.readerFactory(new SingleReaderFactory() {

        @Override
        public ManagedReader next(SchemaNegotiator negotiator) {
            return new MockLateSchemaReader(negotiator, 1);
        }
    });
    ScanLifecycle scan = buildScan(builder);
    RowBatchReader reader = scan.nextReader();
    assertTrue(reader.open());
    assertTrue(reader.next());
    // Late schema: so output schema is available after next()
    TupleMetadata expectedSchema = new SchemaBuilder().add("a", MinorType.INT).addNullable("c", MinorType.VARCHAR).build();
    assertEquals(expectedSchema, scan.outputSchema());
    RowSet expected = fixture.rowSetBuilder(expectedSchema).addRow(10, null).addRow(20, null).build();
    RowSetUtilities.verify(expected, fixture.wrap(reader.output()));
    assertFalse(reader.next());
    reader.close();
    scan.close();
}

Example 83 with RowSet

use of org.apache.drill.exec.physical.rowSet.RowSet in project drill by apache.

the class TestScanLifecycleSchema method testDefinedSchemaSupersset.

/**
 * The defined schema is a superset of the reader's schema; the
 * defined schema defines the missing column type.
 */
@Test
public void testDefinedSchemaSupersset() {
    ScanLifecycleBuilder builder = new ScanLifecycleBuilder();
    builder.definedSchema(SCHEMA);
    builder.readerFactory(new SingleReaderFactory() {

        @Override
        public ManagedReader next(SchemaNegotiator negotiator) {
            return new MockSingleColReader(negotiator);
        }
    });
    ScanLifecycle scan = buildScan(builder);
    RowBatchReader reader = scan.nextReader();
    assertTrue(reader.open());
    assertEquals(SCHEMA, scan.outputSchema());
    assertTrue(reader.next());
    RowSet expected = fixture.rowSetBuilder(SCHEMA).addRow(101, null).addRow(102, null).build();
    RowSetUtilities.verify(expected, fixture.wrap(reader.output()));
    assertFalse(reader.next());
    reader.close();
    scan.close();
}

Example 84 with RowSet

use of org.apache.drill.exec.physical.rowSet.RowSet in project drill by apache.

the class TestImplicitColumnLoader method testOneColumn.

@Test
public void testOneColumn() {
    StaticBatchBuilder batchLoader = buildHandler(RowSetTestUtils.projectList("a", ScanTestUtils.FILE_NAME_COL, "b"), MOCK_ROOT_PATH, MOCK_FILE_PATH);
    assertNotNull(batchLoader);
    batchLoader.load(2);
    TupleMetadata expectedSchema = new SchemaBuilder().add(ScanTestUtils.FILE_NAME_COL, IMPLICIT_COL_TYPE).build();
    RowSet expected = fixture.rowSetBuilder(expectedSchema).addRow(MOCK_FILE_NAME).addRow(MOCK_FILE_NAME).build();
    RowSetUtilities.verify(expected, fixture.wrap(batchLoader.outputContainer()));
}

Example 85 with RowSet

use of org.apache.drill.exec.physical.rowSet.RowSet in project drill by apache.

the class TestImplicitColumnLoader method testInternalEmptyFile.

@Test
public void testInternalEmptyFile() {
    ImplicitFixture testFixture = new ImplicitFixture(RowSetTestUtils.projectList(ScanTestUtils.LAST_MODIFIED_TIME_COL, ScanTestUtils.PROJECT_METADATA_COL), MOCK_ROOT_PATH);
    testFixture.build(MOCK_FILE_PATH);
    testFixture.fileDescrip.setModTime("123456789");
    testFixture.fileDescrip.markEmpty();
    StaticBatchBuilder batchLoader = testFixture.batchBuilder();
    assertNotNull(batchLoader);
    batchLoader.load(1);
    TupleMetadata expectedSchema = new SchemaBuilder().add(ScanTestUtils.LAST_MODIFIED_TIME_COL, MinorType.VARCHAR).addNullable(ScanTestUtils.PROJECT_METADATA_COL, MinorType.VARCHAR).build();
    RowSet expected = fixture.rowSetBuilder(expectedSchema).addRow("123456789", "false").build();
    RowSetUtilities.verify(expected, fixture.wrap(batchLoader.outputContainer()));
}