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

Example 1 with StripeStatistics

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

the class TestOrcFile method testStripeLevelStats.

@Test
public void testStripeLevelStats() 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(100000).bufferSize(10000).batchSize(1000));
    for (int i = 0; i < 11000; i++) {
        if (i >= 5000) {
            if (i >= 10000) {
                writer.addRow(new InnerStruct(3, "three"));
            } else {
                writer.addRow(new InnerStruct(2, "two"));
            }
        } else {
            writer.addRow(new InnerStruct(1, "one"));
        }
    }
    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, true, false };
    boolean[] included = OrcUtils.includeColumns("int1", schema);
    assertEquals(true, Arrays.equals(expected, included));
    List<StripeStatistics> stats = reader.getStripeStatistics();
    int numStripes = stats.size();
    assertEquals(3, numStripes);
    StripeStatistics ss1 = stats.get(0);
    StripeStatistics ss2 = stats.get(1);
    StripeStatistics ss3 = stats.get(2);
    assertEquals(5000, ss1.getColumnStatistics()[0].getNumberOfValues());
    assertEquals(5000, ss2.getColumnStatistics()[0].getNumberOfValues());
    assertEquals(1000, ss3.getColumnStatistics()[0].getNumberOfValues());
    assertEquals(5000, (ss1.getColumnStatistics()[1]).getNumberOfValues());
    assertEquals(5000, (ss2.getColumnStatistics()[1]).getNumberOfValues());
    assertEquals(1000, (ss3.getColumnStatistics()[1]).getNumberOfValues());
    assertEquals(1, ((IntegerColumnStatistics) ss1.getColumnStatistics()[1]).getMinimum());
    assertEquals(2, ((IntegerColumnStatistics) ss2.getColumnStatistics()[1]).getMinimum());
    assertEquals(3, ((IntegerColumnStatistics) ss3.getColumnStatistics()[1]).getMinimum());
    assertEquals(1, ((IntegerColumnStatistics) ss1.getColumnStatistics()[1]).getMaximum());
    assertEquals(2, ((IntegerColumnStatistics) ss2.getColumnStatistics()[1]).getMaximum());
    assertEquals(3, ((IntegerColumnStatistics) ss3.getColumnStatistics()[1]).getMaximum());
    assertEquals(5000, ((IntegerColumnStatistics) ss1.getColumnStatistics()[1]).getSum());
    assertEquals(10000, ((IntegerColumnStatistics) ss2.getColumnStatistics()[1]).getSum());
    assertEquals(3000, ((IntegerColumnStatistics) ss3.getColumnStatistics()[1]).getSum());
    assertEquals(5000, (ss1.getColumnStatistics()[2]).getNumberOfValues());
    assertEquals(5000, (ss2.getColumnStatistics()[2]).getNumberOfValues());
    assertEquals(1000, (ss3.getColumnStatistics()[2]).getNumberOfValues());
    assertEquals("one", ((StringColumnStatistics) ss1.getColumnStatistics()[2]).getMinimum());
    assertEquals("two", ((StringColumnStatistics) ss2.getColumnStatistics()[2]).getMinimum());
    assertEquals("three", ((StringColumnStatistics) ss3.getColumnStatistics()[2]).getMinimum());
    assertEquals("one", ((StringColumnStatistics) ss1.getColumnStatistics()[2]).getMaximum());
    assertEquals("two", ((StringColumnStatistics) ss2.getColumnStatistics()[2]).getMaximum());
    assertEquals("three", ((StringColumnStatistics) ss3.getColumnStatistics()[2]).getMaximum());
    assertEquals(15000, ((StringColumnStatistics) ss1.getColumnStatistics()[2]).getSum());
    assertEquals(15000, ((StringColumnStatistics) ss2.getColumnStatistics()[2]).getSum());
    assertEquals(5000, ((StringColumnStatistics) ss3.getColumnStatistics()[2]).getSum());
    RecordReaderImpl recordReader = (RecordReaderImpl) reader.rows();
    OrcProto.RowIndex[] index = recordReader.readRowIndex(0, null, null).getRowGroupIndex();
    assertEquals(3, index.length);
    List<OrcProto.RowIndexEntry> items = index[1].getEntryList();
    assertEquals(1, items.size());
    assertEquals(3, items.get(0).getPositionsCount());
    assertEquals(0, items.get(0).getPositions(0));
    assertEquals(0, items.get(0).getPositions(1));
    assertEquals(0, items.get(0).getPositions(2));
    assertEquals(1, items.get(0).getStatistics().getIntStatistics().getMinimum());
    index = recordReader.readRowIndex(1, null, null).getRowGroupIndex();
    assertEquals(3, index.length);
    items = index[1].getEntryList();
    assertEquals(2, items.get(0).getStatistics().getIntStatistics().getMaximum());
}

Example 2 with StripeStatistics

use of org.apache.orc.StripeStatistics 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();
}