Examples with ColumnStatistics org.apache.orc.ColumnStatistics used on opensource projects

Example 6 with ColumnStatistics

use of org.apache.orc.ColumnStatistics in project hive by apache.

the class TestOrcFile method test1.

@Test
public void test1() throws Exception {
    ObjectInspector inspector;
    synchronized (TestOrcFile.class) {
        inspector = ObjectInspectorFactory.getReflectionObjectInspector(BigRow.class, ObjectInspectorFactory.ObjectInspectorOptions.JAVA);
    }
    Writer writer = OrcFile.createWriter(testFilePath, OrcFile.writerOptions(conf).inspector(inspector).stripeSize(100000).bufferSize(10000));
    writer.addRow(new BigRow(false, (byte) 1, (short) 1024, 65536, Long.MAX_VALUE, (float) 1.0, -15.0, bytes(0, 1, 2, 3, 4), "hi", new MiddleStruct(inner(1, "bye"), inner(2, "sigh")), list(inner(3, "good"), inner(4, "bad")), map()));
    writer.addRow(new BigRow(true, (byte) 100, (short) 2048, 65536, Long.MAX_VALUE, (float) 2.0, -5.0, bytes(), "bye", new MiddleStruct(inner(1, "bye"), inner(2, "sigh")), list(inner(100000000, "cat"), inner(-100000, "in"), inner(1234, "hat")), map(inner(5, "chani"), inner(1, "mauddib"))));
    writer.close();
    Reader reader = OrcFile.createReader(testFilePath, OrcFile.readerOptions(conf).filesystem(fs));
    TypeDescription schema = writer.getSchema();
    assertEquals(23, schema.getMaximumId());
    boolean[] expected = new boolean[] { false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false };
    boolean[] included = OrcUtils.includeColumns("", schema);
    assertEquals(true, Arrays.equals(expected, included));
    expected = new boolean[] { false, true, false, false, false, false, false, false, false, true, true, true, true, true, true, false, false, false, false, true, true, true, true, true };
    included = OrcUtils.includeColumns("boolean1,string1,middle,map", schema);
    assertEquals(true, Arrays.equals(expected, included));
    expected = new boolean[] { false, true, false, false, false, false, false, false, false, true, true, true, true, true, true, false, false, false, false, true, true, true, true, true };
    included = OrcUtils.includeColumns("boolean1,string1,middle,map", schema);
    assertEquals(true, Arrays.equals(expected, included));
    expected = new boolean[] { false, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true };
    included = OrcUtils.includeColumns("boolean1,byte1,short1,int1,long1,float1,double1,bytes1,string1,middle,list,map", schema);
    assertEquals(true, Arrays.equals(expected, included));
    // check the stats
    ColumnStatistics[] stats = reader.getStatistics();
    assertEquals(2, stats[1].getNumberOfValues());
    assertEquals(1, ((BooleanColumnStatistics) stats[1]).getFalseCount());
    assertEquals(1, ((BooleanColumnStatistics) stats[1]).getTrueCount());
    assertEquals("count: 2 hasNull: false true: 1", stats[1].toString());
    assertEquals(2048, ((IntegerColumnStatistics) stats[3]).getMaximum());
    assertEquals(1024, ((IntegerColumnStatistics) stats[3]).getMinimum());
    assertEquals(true, ((IntegerColumnStatistics) stats[3]).isSumDefined());
    assertEquals(3072, ((IntegerColumnStatistics) stats[3]).getSum());
    assertEquals("count: 2 hasNull: false min: 1024 max: 2048 sum: 3072", stats[3].toString());
    StripeStatistics ss = reader.getStripeStatistics().get(0);
    assertEquals(2, ss.getColumnStatistics()[0].getNumberOfValues());
    assertEquals(1, ((BooleanColumnStatistics) ss.getColumnStatistics()[1]).getTrueCount());
    assertEquals(1024, ((IntegerColumnStatistics) ss.getColumnStatistics()[3]).getMinimum());
    assertEquals(2048, ((IntegerColumnStatistics) ss.getColumnStatistics()[3]).getMaximum());
    assertEquals(3072, ((IntegerColumnStatistics) ss.getColumnStatistics()[3]).getSum());
    assertEquals(-15.0, ((DoubleColumnStatistics) stats[7]).getMinimum());
    assertEquals(-5.0, ((DoubleColumnStatistics) stats[7]).getMaximum());
    assertEquals(-20.0, ((DoubleColumnStatistics) stats[7]).getSum(), 0.00001);
    assertEquals("count: 2 hasNull: false min: -15.0 max: -5.0 sum: -20.0", stats[7].toString());
    assertEquals("count: 2 hasNull: false min: bye max: hi sum: 5", stats[9].toString());
    // check the inspectors
    StructObjectInspector readerInspector = (StructObjectInspector) reader.getObjectInspector();
    assertEquals(ObjectInspector.Category.STRUCT, readerInspector.getCategory());
    assertEquals("struct<boolean1:boolean,byte1:tinyint,short1:smallint," + "int1:int,long1:bigint,float1:float,double1:double,bytes1:" + "binary,string1:string,middle:struct<list:array<struct<int1:int," + "string1:string>>>,list:array<struct<int1:int,string1:string>>," + "map:map<string,struct<int1:int,string1:string>>>", readerInspector.getTypeName());
    List<? extends StructField> fields = readerInspector.getAllStructFieldRefs();
    BooleanObjectInspector bo = (BooleanObjectInspector) readerInspector.getStructFieldRef("boolean1").getFieldObjectInspector();
    ByteObjectInspector by = (ByteObjectInspector) readerInspector.getStructFieldRef("byte1").getFieldObjectInspector();
    ShortObjectInspector sh = (ShortObjectInspector) readerInspector.getStructFieldRef("short1").getFieldObjectInspector();
    IntObjectInspector in = (IntObjectInspector) readerInspector.getStructFieldRef("int1").getFieldObjectInspector();
    LongObjectInspector lo = (LongObjectInspector) readerInspector.getStructFieldRef("long1").getFieldObjectInspector();
    FloatObjectInspector fl = (FloatObjectInspector) readerInspector.getStructFieldRef("float1").getFieldObjectInspector();
    DoubleObjectInspector dbl = (DoubleObjectInspector) readerInspector.getStructFieldRef("double1").getFieldObjectInspector();
    BinaryObjectInspector bi = (BinaryObjectInspector) readerInspector.getStructFieldRef("bytes1").getFieldObjectInspector();
    StringObjectInspector st = (StringObjectInspector) readerInspector.getStructFieldRef("string1").getFieldObjectInspector();
    StructObjectInspector mid = (StructObjectInspector) readerInspector.getStructFieldRef("middle").getFieldObjectInspector();
    List<? extends StructField> midFields = mid.getAllStructFieldRefs();
    ListObjectInspector midli = (ListObjectInspector) midFields.get(0).getFieldObjectInspector();
    StructObjectInspector inner = (StructObjectInspector) midli.getListElementObjectInspector();
    List<? extends StructField> inFields = inner.getAllStructFieldRefs();
    ListObjectInspector li = (ListObjectInspector) readerInspector.getStructFieldRef("list").getFieldObjectInspector();
    MapObjectInspector ma = (MapObjectInspector) readerInspector.getStructFieldRef("map").getFieldObjectInspector();
    StringObjectInspector mk = (StringObjectInspector) ma.getMapKeyObjectInspector();
    RecordReader rows = reader.rows();
    Object row = rows.next(null);
    assertNotNull(row);
    // check the contents of the first row
    assertEquals(false, bo.get(readerInspector.getStructFieldData(row, fields.get(0))));
    assertEquals(1, by.get(readerInspector.getStructFieldData(row, fields.get(1))));
    assertEquals(1024, sh.get(readerInspector.getStructFieldData(row, fields.get(2))));
    assertEquals(65536, in.get(readerInspector.getStructFieldData(row, fields.get(3))));
    assertEquals(Long.MAX_VALUE, lo.get(readerInspector.getStructFieldData(row, fields.get(4))));
    assertEquals(1.0, fl.get(readerInspector.getStructFieldData(row, fields.get(5))), 0.00001);
    assertEquals(-15.0, dbl.get(readerInspector.getStructFieldData(row, fields.get(6))), 0.00001);
    assertEquals(bytes(0, 1, 2, 3, 4), bi.getPrimitiveWritableObject(readerInspector.getStructFieldData(row, fields.get(7))));
    assertEquals("hi", st.getPrimitiveJavaObject(readerInspector.getStructFieldData(row, fields.get(8))));
    List<?> midRow = midli.getList(mid.getStructFieldData(readerInspector.getStructFieldData(row, fields.get(9)), midFields.get(0)));
    assertNotNull(midRow);
    assertEquals(2, midRow.size());
    assertEquals(1, in.get(inner.getStructFieldData(midRow.get(0), inFields.get(0))));
    assertEquals("bye", st.getPrimitiveJavaObject(inner.getStructFieldData(midRow.get(0), inFields.get(1))));
    assertEquals(2, in.get(inner.getStructFieldData(midRow.get(1), inFields.get(0))));
    assertEquals("sigh", st.getPrimitiveJavaObject(inner.getStructFieldData(midRow.get(1), inFields.get(1))));
    List<?> list = li.getList(readerInspector.getStructFieldData(row, fields.get(10)));
    assertEquals(2, list.size());
    assertEquals(3, in.get(inner.getStructFieldData(list.get(0), inFields.get(0))));
    assertEquals("good", st.getPrimitiveJavaObject(inner.getStructFieldData(list.get(0), inFields.get(1))));
    assertEquals(4, in.get(inner.getStructFieldData(list.get(1), inFields.get(0))));
    assertEquals("bad", st.getPrimitiveJavaObject(inner.getStructFieldData(list.get(1), inFields.get(1))));
    Map<?, ?> map = ma.getMap(readerInspector.getStructFieldData(row, fields.get(11)));
    assertEquals(0, map.size());
    // check the contents of second row
    assertEquals(true, rows.hasNext());
    row = rows.next(row);
    assertEquals(true, bo.get(readerInspector.getStructFieldData(row, fields.get(0))));
    assertEquals(100, by.get(readerInspector.getStructFieldData(row, fields.get(1))));
    assertEquals(2048, sh.get(readerInspector.getStructFieldData(row, fields.get(2))));
    assertEquals(65536, in.get(readerInspector.getStructFieldData(row, fields.get(3))));
    assertEquals(Long.MAX_VALUE, lo.get(readerInspector.getStructFieldData(row, fields.get(4))));
    assertEquals(2.0, fl.get(readerInspector.getStructFieldData(row, fields.get(5))), 0.00001);
    assertEquals(-5.0, dbl.get(readerInspector.getStructFieldData(row, fields.get(6))), 0.00001);
    assertEquals(bytes(), bi.getPrimitiveWritableObject(readerInspector.getStructFieldData(row, fields.get(7))));
    assertEquals("bye", st.getPrimitiveJavaObject(readerInspector.getStructFieldData(row, fields.get(8))));
    midRow = midli.getList(mid.getStructFieldData(readerInspector.getStructFieldData(row, fields.get(9)), midFields.get(0)));
    assertNotNull(midRow);
    assertEquals(2, midRow.size());
    assertEquals(1, in.get(inner.getStructFieldData(midRow.get(0), inFields.get(0))));
    assertEquals("bye", st.getPrimitiveJavaObject(inner.getStructFieldData(midRow.get(0), inFields.get(1))));
    assertEquals(2, in.get(inner.getStructFieldData(midRow.get(1), inFields.get(0))));
    assertEquals("sigh", st.getPrimitiveJavaObject(inner.getStructFieldData(midRow.get(1), inFields.get(1))));
    list = li.getList(readerInspector.getStructFieldData(row, fields.get(10)));
    assertEquals(3, list.size());
    assertEquals(100000000, in.get(inner.getStructFieldData(list.get(0), inFields.get(0))));
    assertEquals("cat", st.getPrimitiveJavaObject(inner.getStructFieldData(list.get(0), inFields.get(1))));
    assertEquals(-100000, in.get(inner.getStructFieldData(list.get(1), inFields.get(0))));
    assertEquals("in", st.getPrimitiveJavaObject(inner.getStructFieldData(list.get(1), inFields.get(1))));
    assertEquals(1234, in.get(inner.getStructFieldData(list.get(2), inFields.get(0))));
    assertEquals("hat", st.getPrimitiveJavaObject(inner.getStructFieldData(list.get(2), inFields.get(1))));
    map = ma.getMap(readerInspector.getStructFieldData(row, fields.get(11)));
    assertEquals(2, map.size());
    boolean[] found = new boolean[2];
    for (Object key : map.keySet()) {
        String str = mk.getPrimitiveJavaObject(key);
        if (str.equals("chani")) {
            assertEquals(false, found[0]);
            assertEquals(5, in.get(inner.getStructFieldData(map.get(key), inFields.get(0))));
            assertEquals(str, st.getPrimitiveJavaObject(inner.getStructFieldData(map.get(key), inFields.get(1))));
            found[0] = true;
        } else if (str.equals("mauddib")) {
            assertEquals(false, found[1]);
            assertEquals(1, in.get(inner.getStructFieldData(map.get(key), inFields.get(0))));
            assertEquals(str, st.getPrimitiveJavaObject(inner.getStructFieldData(map.get(key), inFields.get(1))));
            found[1] = true;
        } else {
            throw new IllegalArgumentException("Unknown key " + str);
        }
    }
    assertEquals(true, found[0]);
    assertEquals(true, found[1]);
    // handle the close up
    assertEquals(false, rows.hasNext());
    rows.close();
}

Example 7 with ColumnStatistics

use of org.apache.orc.ColumnStatistics in project hive by apache.

the class TestOrcFile method testHiveDecimalIsNullReset.

@Test
public void testHiveDecimalIsNullReset() throws Exception {
    ObjectInspector inspector;
    synchronized (TestOrcFile.class) {
        inspector = ObjectInspectorFactory.getReflectionObjectInspector(DecimalStruct.class, ObjectInspectorFactory.ObjectInspectorOptions.JAVA);
    }
    Writer writer = OrcFile.createWriter(testFilePath, OrcFile.writerOptions(conf).inspector(inspector).stripeSize(100000).bufferSize(10000));
    // orc creates 1000 batch size to make memory check align with 5000 instead of 5120
    for (int i = 0; i < 1000; i++) {
        writer.addRow(new DecimalStruct(null));
    }
    writer.addRow(new DecimalStruct(new HiveDecimalWritable("1.00")));
    writer.addRow(new DecimalStruct(new HiveDecimalWritable("2.00")));
    writer.addRow(new DecimalStruct(new HiveDecimalWritable("3.00")));
    writer.close();
    Reader reader = OrcFile.createReader(testFilePath, OrcFile.readerOptions(conf).filesystem(fs));
    StructObjectInspector readerInspector = (StructObjectInspector) reader.getObjectInspector();
    List<? extends StructField> fields = readerInspector.getAllStructFieldRefs();
    HiveDecimalObjectInspector doi = (HiveDecimalObjectInspector) readerInspector.getStructFieldRef("dec").getFieldObjectInspector();
    RecordReader rows = reader.rows();
    int idx = 0;
    while (rows.hasNext()) {
        Object row = rows.next(null);
        if (idx < 1000) {
            assertEquals(null, doi.getPrimitiveWritableObject(readerInspector.getStructFieldData(row, fields.get(0))));
        }
        if (idx == 1000) {
            assertEquals(new HiveDecimalWritable(1), doi.getPrimitiveWritableObject(readerInspector.getStructFieldData(row, fields.get(0))));
        }
        if (idx == 1001) {
            assertEquals(new HiveDecimalWritable(2), doi.getPrimitiveWritableObject(readerInspector.getStructFieldData(row, fields.get(0))));
        }
        if (idx == 10002) {
            assertEquals(new HiveDecimalWritable(3), doi.getPrimitiveWritableObject(readerInspector.getStructFieldData(row, fields.get(0))));
        }
        idx++;
    }
    // check the stats
    ColumnStatistics[] stats = reader.getStatistics();
    assertEquals(1003, stats[0].getNumberOfValues());
    assertEquals(3, stats[1].getNumberOfValues());
    assertEquals(HiveDecimal.create(3), ((DecimalColumnStatistics) stats[1]).getMaximum());
    assertEquals(HiveDecimal.create(1), ((DecimalColumnStatistics) stats[1]).getMinimum());
    assertEquals(HiveDecimal.create(6), ((DecimalColumnStatistics) stats[1]).getSum());
    assertEquals(true, stats[1].hasNull());
}

Example 8 with ColumnStatistics

use of org.apache.orc.ColumnStatistics in project hive by apache.

the class TestOrcFile method testStringAndBinaryStatistics.

@Test
public void testStringAndBinaryStatistics() throws Exception {
    ObjectInspector inspector;
    synchronized (TestOrcFile.class) {
        inspector = ObjectInspectorFactory.getReflectionObjectInspector(SimpleStruct.class, ObjectInspectorFactory.ObjectInspectorOptions.JAVA);
    }
    Writer writer = OrcFile.createWriter(testFilePath, OrcFile.writerOptions(conf).inspector(inspector).stripeSize(100000).bufferSize(10000));
    writer.addRow(new SimpleStruct(bytes(0, 1, 2, 3, 4), "foo"));
    writer.addRow(new SimpleStruct(bytes(0, 1, 2, 3), "bar"));
    writer.addRow(new SimpleStruct(bytes(0, 1, 2, 3, 4, 5), null));
    writer.addRow(new SimpleStruct(null, "hi"));
    writer.close();
    Reader reader = OrcFile.createReader(testFilePath, OrcFile.readerOptions(conf).filesystem(fs));
    TypeDescription schema = writer.getSchema();
    assertEquals(2, schema.getMaximumId());
    boolean[] expected = new boolean[] { false, false, true };
    boolean[] included = OrcUtils.includeColumns("string1", schema);
    assertEquals(true, Arrays.equals(expected, included));
    expected = new boolean[] { false, false, false };
    included = OrcUtils.includeColumns("", schema);
    assertEquals(true, Arrays.equals(expected, included));
    expected = new boolean[] { false, false, false };
    included = OrcUtils.includeColumns(null, schema);
    assertEquals(true, Arrays.equals(expected, included));
    // check the stats
    ColumnStatistics[] stats = reader.getStatistics();
    assertEquals(4, stats[0].getNumberOfValues());
    assertEquals("count: 4 hasNull: false", stats[0].toString());
    assertEquals(3, stats[1].getNumberOfValues());
    assertEquals(15, ((BinaryColumnStatistics) stats[1]).getSum());
    assertEquals("count: 3 hasNull: true sum: 15", stats[1].toString());
    assertEquals(3, stats[2].getNumberOfValues());
    assertEquals("bar", ((StringColumnStatistics) stats[2]).getMinimum());
    assertEquals("hi", ((StringColumnStatistics) stats[2]).getMaximum());
    assertEquals(8, ((StringColumnStatistics) stats[2]).getSum());
    assertEquals("count: 3 hasNull: true min: bar max: hi sum: 8", stats[2].toString());
    // check the inspectors
    StructObjectInspector readerInspector = (StructObjectInspector) reader.getObjectInspector();
    assertEquals(ObjectInspector.Category.STRUCT, readerInspector.getCategory());
    assertEquals("struct<bytes1:binary,string1:string>", readerInspector.getTypeName());
    List<? extends StructField> fields = readerInspector.getAllStructFieldRefs();
    BinaryObjectInspector bi = (BinaryObjectInspector) readerInspector.getStructFieldRef("bytes1").getFieldObjectInspector();
    StringObjectInspector st = (StringObjectInspector) readerInspector.getStructFieldRef("string1").getFieldObjectInspector();
    RecordReader rows = reader.rows();
    Object row = rows.next(null);
    assertNotNull(row);
    // check the contents of the first row
    assertEquals(bytes(0, 1, 2, 3, 4), bi.getPrimitiveWritableObject(readerInspector.getStructFieldData(row, fields.get(0))));
    assertEquals("foo", st.getPrimitiveJavaObject(readerInspector.getStructFieldData(row, fields.get(1))));
    // check the contents of second row
    assertEquals(true, rows.hasNext());
    row = rows.next(row);
    assertEquals(bytes(0, 1, 2, 3), bi.getPrimitiveWritableObject(readerInspector.getStructFieldData(row, fields.get(0))));
    assertEquals("bar", st.getPrimitiveJavaObject(readerInspector.getStructFieldData(row, fields.get(1))));
    // check the contents of second row
    assertEquals(true, rows.hasNext());
    row = rows.next(row);
    assertEquals(bytes(0, 1, 2, 3, 4, 5), bi.getPrimitiveWritableObject(readerInspector.getStructFieldData(row, fields.get(0))));
    assertNull(st.getPrimitiveJavaObject(readerInspector.getStructFieldData(row, fields.get(1))));
    // check the contents of second row
    assertEquals(true, rows.hasNext());
    row = rows.next(row);
    assertNull(bi.getPrimitiveWritableObject(readerInspector.getStructFieldData(row, fields.get(0))));
    assertEquals("hi", st.getPrimitiveJavaObject(readerInspector.getStructFieldData(row, fields.get(1))));
    // handle the close up
    assertEquals(false, rows.hasNext());
    rows.close();
}

Example 9 with ColumnStatistics

use of org.apache.orc.ColumnStatistics in project hive by apache.

the class TestOrcFile method columnProjection.

@Test
public void columnProjection() throws Exception {
    ObjectInspector inspector;
    synchronized (TestOrcFile.class) {
        inspector = ObjectInspectorFactory.getReflectionObjectInspector(InnerStruct.class, ObjectInspectorFactory.ObjectInspectorOptions.JAVA);
    }
    Writer writer = OrcFile.createWriter(testFilePath, OrcFile.writerOptions(conf).inspector(inspector).stripeSize(1000).compress(CompressionKind.NONE).bufferSize(100).rowIndexStride(1000));
    Random r1 = new Random(1);
    Random r2 = new Random(2);
    int x;
    int minInt = 0, maxInt = 0;
    String y;
    String minStr = null, maxStr = null;
    for (int i = 0; i < 21000; ++i) {
        x = r1.nextInt();
        y = Long.toHexString(r2.nextLong());
        if (i == 0 || x < minInt) {
            minInt = x;
        }
        if (i == 0 || x > maxInt) {
            maxInt = x;
        }
        if (i == 0 || y.compareTo(minStr) < 0) {
            minStr = y;
        }
        if (i == 0 || y.compareTo(maxStr) > 0) {
            maxStr = y;
        }
        writer.addRow(inner(x, y));
    }
    writer.close();
    Reader reader = OrcFile.createReader(testFilePath, OrcFile.readerOptions(conf).filesystem(fs));
    // check out the statistics
    ColumnStatistics[] stats = reader.getStatistics();
    assertEquals(3, stats.length);
    for (ColumnStatistics s : stats) {
        assertEquals(21000, s.getNumberOfValues());
        if (s instanceof IntegerColumnStatistics) {
            assertEquals(minInt, ((IntegerColumnStatistics) s).getMinimum());
            assertEquals(maxInt, ((IntegerColumnStatistics) s).getMaximum());
        } else if (s instanceof StringColumnStatistics) {
            assertEquals(maxStr, ((StringColumnStatistics) s).getMaximum());
            assertEquals(minStr, ((StringColumnStatistics) s).getMinimum());
        }
    }
    // check out the types
    List<OrcProto.Type> types = reader.getTypes();
    assertEquals(3, types.size());
    assertEquals(OrcProto.Type.Kind.STRUCT, types.get(0).getKind());
    assertEquals(2, types.get(0).getSubtypesCount());
    assertEquals(1, types.get(0).getSubtypes(0));
    assertEquals(2, types.get(0).getSubtypes(1));
    assertEquals(OrcProto.Type.Kind.INT, types.get(1).getKind());
    assertEquals(0, types.get(1).getSubtypesCount());
    assertEquals(OrcProto.Type.Kind.STRING, types.get(2).getKind());
    assertEquals(0, types.get(2).getSubtypesCount());
    // read the contents and make sure they match
    RecordReader rows1 = reader.rows(new boolean[] { true, true, false });
    RecordReader rows2 = reader.rows(new boolean[] { true, false, true });
    r1 = new Random(1);
    r2 = new Random(2);
    OrcStruct row1 = null;
    OrcStruct row2 = null;
    for (int i = 0; i < 21000; ++i) {
        assertEquals(true, rows1.hasNext());
        assertEquals(true, rows2.hasNext());
        row1 = (OrcStruct) rows1.next(row1);
        row2 = (OrcStruct) rows2.next(row2);
        assertEquals(r1.nextInt(), ((IntWritable) row1.getFieldValue(0)).get());
        assertEquals(Long.toHexString(r2.nextLong()), row2.getFieldValue(1).toString());
    }
    assertEquals(false, rows1.hasNext());
    assertEquals(false, rows2.hasNext());
    rows1.close();
    rows2.close();
}

Example 10 with ColumnStatistics

use of org.apache.orc.ColumnStatistics in project hive by apache.

the class TestOrcFile method testReadFormat_0_11.

@Test
public void testReadFormat_0_11() throws Exception {
    Path oldFilePath = new Path(HiveTestUtils.getFileFromClasspath("orc-file-11-format.orc"));
    Reader reader = OrcFile.createReader(oldFilePath, OrcFile.readerOptions(conf).filesystem(fs));
    int stripeCount = 0;
    int rowCount = 0;
    long currentOffset = -1;
    for (StripeInformation stripe : reader.getStripes()) {
        stripeCount += 1;
        rowCount += stripe.getNumberOfRows();
        if (currentOffset < 0) {
            currentOffset = stripe.getOffset() + stripe.getIndexLength() + stripe.getDataLength() + stripe.getFooterLength();
        } else {
            assertEquals(currentOffset, stripe.getOffset());
            currentOffset += stripe.getIndexLength() + stripe.getDataLength() + stripe.getFooterLength();
        }
    }
    assertEquals(reader.getNumberOfRows(), rowCount);
    assertEquals(2, stripeCount);
    // check the stats
    ColumnStatistics[] stats = reader.getStatistics();
    assertEquals(7500, stats[1].getNumberOfValues());
    assertEquals(3750, ((BooleanColumnStatistics) stats[1]).getFalseCount());
    assertEquals(3750, ((BooleanColumnStatistics) stats[1]).getTrueCount());
    assertEquals("count: 7500 hasNull: true true: 3750", stats[1].toString());
    assertEquals(2048, ((IntegerColumnStatistics) stats[3]).getMaximum());
    assertEquals(1024, ((IntegerColumnStatistics) stats[3]).getMinimum());
    assertEquals(true, ((IntegerColumnStatistics) stats[3]).isSumDefined());
    assertEquals(11520000, ((IntegerColumnStatistics) stats[3]).getSum());
    assertEquals("count: 7500 hasNull: true min: 1024 max: 2048 sum: 11520000", stats[3].toString());
    assertEquals(Long.MAX_VALUE, ((IntegerColumnStatistics) stats[5]).getMaximum());
    assertEquals(Long.MAX_VALUE, ((IntegerColumnStatistics) stats[5]).getMinimum());
    assertEquals(false, ((IntegerColumnStatistics) stats[5]).isSumDefined());
    assertEquals("count: 7500 hasNull: true min: 9223372036854775807 max: 9223372036854775807", stats[5].toString());
    assertEquals(-15.0, ((DoubleColumnStatistics) stats[7]).getMinimum());
    assertEquals(-5.0, ((DoubleColumnStatistics) stats[7]).getMaximum());
    assertEquals(-75000.0, ((DoubleColumnStatistics) stats[7]).getSum(), 0.00001);
    assertEquals("count: 7500 hasNull: true min: -15.0 max: -5.0 sum: -75000.0", stats[7].toString());
    assertEquals("count: 7500 hasNull: true min: bye max: hi sum: 0", stats[9].toString());
    // check the inspectors
    StructObjectInspector readerInspector = (StructObjectInspector) reader.getObjectInspector();
    assertEquals(ObjectInspector.Category.STRUCT, readerInspector.getCategory());
    assertEquals("struct<boolean1:boolean,byte1:tinyint,short1:smallint," + "int1:int,long1:bigint,float1:float,double1:double,bytes1:" + "binary,string1:string,middle:struct<list:array<struct<int1:int," + "string1:string>>>,list:array<struct<int1:int,string1:string>>," + "map:map<string,struct<int1:int,string1:string>>,ts:timestamp," + "decimal1:decimal(38,18)>", readerInspector.getTypeName());
    List<? extends StructField> fields = readerInspector.getAllStructFieldRefs();
    BooleanObjectInspector bo = (BooleanObjectInspector) readerInspector.getStructFieldRef("boolean1").getFieldObjectInspector();
    ByteObjectInspector by = (ByteObjectInspector) readerInspector.getStructFieldRef("byte1").getFieldObjectInspector();
    ShortObjectInspector sh = (ShortObjectInspector) readerInspector.getStructFieldRef("short1").getFieldObjectInspector();
    IntObjectInspector in = (IntObjectInspector) readerInspector.getStructFieldRef("int1").getFieldObjectInspector();
    LongObjectInspector lo = (LongObjectInspector) readerInspector.getStructFieldRef("long1").getFieldObjectInspector();
    FloatObjectInspector fl = (FloatObjectInspector) readerInspector.getStructFieldRef("float1").getFieldObjectInspector();
    DoubleObjectInspector dbl = (DoubleObjectInspector) readerInspector.getStructFieldRef("double1").getFieldObjectInspector();
    BinaryObjectInspector bi = (BinaryObjectInspector) readerInspector.getStructFieldRef("bytes1").getFieldObjectInspector();
    StringObjectInspector st = (StringObjectInspector) readerInspector.getStructFieldRef("string1").getFieldObjectInspector();
    StructObjectInspector mid = (StructObjectInspector) readerInspector.getStructFieldRef("middle").getFieldObjectInspector();
    List<? extends StructField> midFields = mid.getAllStructFieldRefs();
    ListObjectInspector midli = (ListObjectInspector) midFields.get(0).getFieldObjectInspector();
    StructObjectInspector inner = (StructObjectInspector) midli.getListElementObjectInspector();
    List<? extends StructField> inFields = inner.getAllStructFieldRefs();
    ListObjectInspector li = (ListObjectInspector) readerInspector.getStructFieldRef("list").getFieldObjectInspector();
    MapObjectInspector ma = (MapObjectInspector) readerInspector.getStructFieldRef("map").getFieldObjectInspector();
    TimestampObjectInspector tso = (TimestampObjectInspector) readerInspector.getStructFieldRef("ts").getFieldObjectInspector();
    HiveDecimalObjectInspector dco = (HiveDecimalObjectInspector) readerInspector.getStructFieldRef("decimal1").getFieldObjectInspector();
    StringObjectInspector mk = (StringObjectInspector) ma.getMapKeyObjectInspector();
    RecordReader rows = reader.rows();
    Object row = rows.next(null);
    assertNotNull(row);
    // check the contents of the first row
    assertEquals(false, bo.get(readerInspector.getStructFieldData(row, fields.get(0))));
    assertEquals(1, by.get(readerInspector.getStructFieldData(row, fields.get(1))));
    assertEquals(1024, sh.get(readerInspector.getStructFieldData(row, fields.get(2))));
    assertEquals(65536, in.get(readerInspector.getStructFieldData(row, fields.get(3))));
    assertEquals(Long.MAX_VALUE, lo.get(readerInspector.getStructFieldData(row, fields.get(4))));
    assertEquals(1.0, fl.get(readerInspector.getStructFieldData(row, fields.get(5))), 0.00001);
    assertEquals(-15.0, dbl.get(readerInspector.getStructFieldData(row, fields.get(6))), 0.00001);
    assertEquals(bytes(0, 1, 2, 3, 4), bi.getPrimitiveWritableObject(readerInspector.getStructFieldData(row, fields.get(7))));
    assertEquals("hi", st.getPrimitiveJavaObject(readerInspector.getStructFieldData(row, fields.get(8))));
    List<?> midRow = midli.getList(mid.getStructFieldData(readerInspector.getStructFieldData(row, fields.get(9)), midFields.get(0)));
    assertNotNull(midRow);
    assertEquals(2, midRow.size());
    assertEquals(1, in.get(inner.getStructFieldData(midRow.get(0), inFields.get(0))));
    assertEquals("bye", st.getPrimitiveJavaObject(inner.getStructFieldData(midRow.get(0), inFields.get(1))));
    assertEquals(2, in.get(inner.getStructFieldData(midRow.get(1), inFields.get(0))));
    assertEquals("sigh", st.getPrimitiveJavaObject(inner.getStructFieldData(midRow.get(1), inFields.get(1))));
    List<?> list = li.getList(readerInspector.getStructFieldData(row, fields.get(10)));
    assertEquals(2, list.size());
    assertEquals(3, in.get(inner.getStructFieldData(list.get(0), inFields.get(0))));
    assertEquals("good", st.getPrimitiveJavaObject(inner.getStructFieldData(list.get(0), inFields.get(1))));
    assertEquals(4, in.get(inner.getStructFieldData(list.get(1), inFields.get(0))));
    assertEquals("bad", st.getPrimitiveJavaObject(inner.getStructFieldData(list.get(1), inFields.get(1))));
    Map<?, ?> map = ma.getMap(readerInspector.getStructFieldData(row, fields.get(11)));
    assertEquals(0, map.size());
    assertEquals(Timestamp.valueOf("2000-03-12 15:00:00"), tso.getPrimitiveJavaObject(readerInspector.getStructFieldData(row, fields.get(12))));
    assertEquals(HiveDecimal.create("12345678.6547456"), dco.getPrimitiveJavaObject(readerInspector.getStructFieldData(row, fields.get(13))));
    // check the contents of second row
    assertEquals(true, rows.hasNext());
    rows.seekToRow(7499);
    row = rows.next(null);
    assertEquals(true, bo.get(readerInspector.getStructFieldData(row, fields.get(0))));
    assertEquals(100, by.get(readerInspector.getStructFieldData(row, fields.get(1))));
    assertEquals(2048, sh.get(readerInspector.getStructFieldData(row, fields.get(2))));
    assertEquals(65536, in.get(readerInspector.getStructFieldData(row, fields.get(3))));
    assertEquals(Long.MAX_VALUE, lo.get(readerInspector.getStructFieldData(row, fields.get(4))));
    assertEquals(2.0, fl.get(readerInspector.getStructFieldData(row, fields.get(5))), 0.00001);
    assertEquals(-5.0, dbl.get(readerInspector.getStructFieldData(row, fields.get(6))), 0.00001);
    assertEquals(bytes(), bi.getPrimitiveWritableObject(readerInspector.getStructFieldData(row, fields.get(7))));
    assertEquals("bye", st.getPrimitiveJavaObject(readerInspector.getStructFieldData(row, fields.get(8))));
    midRow = midli.getList(mid.getStructFieldData(readerInspector.getStructFieldData(row, fields.get(9)), midFields.get(0)));
    assertNotNull(midRow);
    assertEquals(2, midRow.size());
    assertEquals(1, in.get(inner.getStructFieldData(midRow.get(0), inFields.get(0))));
    assertEquals("bye", st.getPrimitiveJavaObject(inner.getStructFieldData(midRow.get(0), inFields.get(1))));
    assertEquals(2, in.get(inner.getStructFieldData(midRow.get(1), inFields.get(0))));
    assertEquals("sigh", st.getPrimitiveJavaObject(inner.getStructFieldData(midRow.get(1), inFields.get(1))));
    list = li.getList(readerInspector.getStructFieldData(row, fields.get(10)));
    assertEquals(3, list.size());
    assertEquals(100000000, in.get(inner.getStructFieldData(list.get(0), inFields.get(0))));
    assertEquals("cat", st.getPrimitiveJavaObject(inner.getStructFieldData(list.get(0), inFields.get(1))));
    assertEquals(-100000, in.get(inner.getStructFieldData(list.get(1), inFields.get(0))));
    assertEquals("in", st.getPrimitiveJavaObject(inner.getStructFieldData(list.get(1), inFields.get(1))));
    assertEquals(1234, in.get(inner.getStructFieldData(list.get(2), inFields.get(0))));
    assertEquals("hat", st.getPrimitiveJavaObject(inner.getStructFieldData(list.get(2), inFields.get(1))));
    map = ma.getMap(readerInspector.getStructFieldData(row, fields.get(11)));
    assertEquals(2, map.size());
    boolean[] found = new boolean[2];
    for (Object key : map.keySet()) {
        String str = mk.getPrimitiveJavaObject(key);
        if (str.equals("chani")) {
            assertEquals(false, found[0]);
            assertEquals(5, in.get(inner.getStructFieldData(map.get(key), inFields.get(0))));
            assertEquals(str, st.getPrimitiveJavaObject(inner.getStructFieldData(map.get(key), inFields.get(1))));
            found[0] = true;
        } else if (str.equals("mauddib")) {
            assertEquals(false, found[1]);
            assertEquals(1, in.get(inner.getStructFieldData(map.get(key), inFields.get(0))));
            assertEquals(str, st.getPrimitiveJavaObject(inner.getStructFieldData(map.get(key), inFields.get(1))));
            found[1] = true;
        } else {
            throw new IllegalArgumentException("Unknown key " + str);
        }
    }
    assertEquals(true, found[0]);
    assertEquals(true, found[1]);
    assertEquals(Timestamp.valueOf("2000-03-12 15:00:01"), tso.getPrimitiveJavaObject(readerInspector.getStructFieldData(row, fields.get(12))));
    assertEquals(HiveDecimal.create("12345678.6547457"), dco.getPrimitiveJavaObject(readerInspector.getStructFieldData(row, fields.get(13))));
    // handle the close up
    assertEquals(false, rows.hasNext());
    rows.close();
}