Java Code Examples for org.apache.parquet.filter2.predicate.FilterApi#gt()

The following examples show how to use org.apache.parquet.filter2.predicate.FilterApi#gt() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.

Example 1

Source File: ParquetFilters.java From iceberg with Apache License 2.0

6 votes

@SuppressWarnings("checkstyle:MethodTypeParameterName")
private static <C extends Comparable<C>, COL extends Operators.Column<C> & Operators.SupportsLtGt>
    FilterPredicate pred(Operation op, COL col, C value) {
  switch (op) {
    case IS_NULL:
      return FilterApi.eq(col, null);
    case NOT_NULL:
      return FilterApi.notEq(col, null);
    case EQ:
      return FilterApi.eq(col, value);
    case NOT_EQ:
      return FilterApi.notEq(col, value);
    case GT:
      return FilterApi.gt(col, value);
    case GT_EQ:
      return FilterApi.gtEq(col, value);
    case LT:
      return FilterApi.lt(col, value);
    case LT_EQ:
      return FilterApi.ltEq(col, value);
    default:
      throw new UnsupportedOperationException("Unsupported predicate operation: " + op);
  }
}

Example 2

Source File: ParquetFilters.java From iceberg with Apache License 2.0

6 votes

private static
<C extends Comparable<C>, COL extends Operators.Column<C> & Operators.SupportsLtGt>
FilterPredicate pred(Operation op, COL col, C value) {
  switch (op) {
    case IS_NULL:
      return FilterApi.eq(col, null);
    case NOT_NULL:
      return FilterApi.notEq(col, null);
    case EQ:
      return FilterApi.eq(col, value);
    case NOT_EQ:
      return FilterApi.notEq(col, value);
    case GT:
      return FilterApi.gt(col, value);
    case GT_EQ:
      return FilterApi.gtEq(col, value);
    case LT:
      return FilterApi.lt(col, value);
    case LT_EQ:
      return FilterApi.ltEq(col, value);
    default:
      throw new UnsupportedOperationException("Unsupported predicate operation: " + op);
  }
}

Example 3

Source File: ParquetTableSource.java From flink with Apache License 2.0

5 votes

@Nullable
private FilterPredicate greaterThan(Expression exp, Tuple2<Column, Comparable> columnPair) {
	Preconditions.checkArgument(exp instanceof GreaterThan, "exp has to be GreaterThan");
	if (columnPair.f0 instanceof IntColumn) {
		return FilterApi.gt((IntColumn) columnPair.f0, (Integer) columnPair.f1);
	} else if (columnPair.f0 instanceof LongColumn) {
		return FilterApi.gt((LongColumn) columnPair.f0, (Long) columnPair.f1);
	} else if (columnPair.f0 instanceof DoubleColumn) {
		return FilterApi.gt((DoubleColumn) columnPair.f0, (Double) columnPair.f1);
	} else if (columnPair.f0 instanceof FloatColumn) {
		return FilterApi.gt((FloatColumn) columnPair.f0, (Float) columnPair.f1);
	}

	return null;
}

Example 4

Source File: ParquetTableSource.java From flink with Apache License 2.0

5 votes

@Nullable
private FilterPredicate greaterThan(Expression exp, Tuple2<Column, Comparable> columnPair) {
	Preconditions.checkArgument(exp instanceof GreaterThan, "exp has to be GreaterThan");
	if (columnPair.f0 instanceof IntColumn) {
		return FilterApi.gt((IntColumn) columnPair.f0, (Integer) columnPair.f1);
	} else if (columnPair.f0 instanceof LongColumn) {
		return FilterApi.gt((LongColumn) columnPair.f0, (Long) columnPair.f1);
	} else if (columnPair.f0 instanceof DoubleColumn) {
		return FilterApi.gt((DoubleColumn) columnPair.f0, (Double) columnPair.f1);
	} else if (columnPair.f0 instanceof FloatColumn) {
		return FilterApi.gt((FloatColumn) columnPair.f0, (Float) columnPair.f1);
	}

	return null;
}

Example 5

Source File: ParquetTableSourceTest.java From flink with Apache License 2.0

4 votes

@Test
public void testFieldsFilter() throws Exception {
	ParquetTableSource parquetTableSource = createNestedTestParquetTableSource(testPath);

	// expressions for supported predicates
	Expression exp1 = new GreaterThan(
		new PlannerResolvedFieldReference("foo", Types.LONG),
		new Literal(100L, Types.LONG));
	Expression exp2 = new EqualTo(
		new Literal(100L, Types.LONG),
		new PlannerResolvedFieldReference("bar.spam", Types.LONG));

	// unsupported predicate
	Expression unsupported = new EqualTo(
		new GetCompositeField(
			new ItemAt(
				new PlannerResolvedFieldReference(
					"nestedArray",
					ObjectArrayTypeInfo.getInfoFor(
						Types.ROW_NAMED(new String[] {"type", "name"}, Types.STRING, Types.STRING))),
					new Literal(1, Types.INT)),
					"type"),
		new Literal("test", Types.STRING));
	// invalid predicate
	Expression invalidPred = new EqualTo(
		new PlannerResolvedFieldReference("nonField", Types.LONG),
		// some invalid, non-serializable, literal (here an object of this test class)
		new Literal(new ParquetTableSourceTest(), Types.LONG)
	);

	List<Expression> exps = new ArrayList<>();
	exps.add(exp1);
	exps.add(exp2);
	exps.add(unsupported);
	exps.add(invalidPred);

	// apply predict on TableSource
	ParquetTableSource filtered = (ParquetTableSource) parquetTableSource.applyPredicate(exps);

	// ensure copy is returned
	assertNotSame(parquetTableSource, filtered);

	// ensure table schema is identical
	assertEquals(parquetTableSource.getTableSchema(), filtered.getTableSchema());

	// ensure return type is identical
	assertEquals(NESTED_ROW_TYPE, filtered.getReturnType());

	// ensure source description is not the same
	assertNotEquals(parquetTableSource.explainSource(), filtered.explainSource());

	// check that pushdown was recorded
	assertTrue(filtered.isFilterPushedDown());
	assertFalse(parquetTableSource.isFilterPushedDown());

	// ensure that supported predicates were removed from list of offered expressions
	assertEquals(2, exps.size());
	assertTrue(exps.contains(unsupported));
	assertTrue(exps.contains(invalidPred));

	// ensure ParquetInputFormat is correctly configured with filter
	DataSet<Row> data = filtered.getDataSet(ExecutionEnvironment.createLocalEnvironment());
	InputFormat<Row, ?> inputFormat = ((DataSource<Row>) data).getInputFormat();
	assertTrue(inputFormat instanceof ParquetRowInputFormat);
	ParquetRowInputFormat parquetIF = (ParquetRowInputFormat) inputFormat;

	// expected predicate
	FilterPredicate a = FilterApi.gt(FilterApi.longColumn("foo"), 100L);
	FilterPredicate b = FilterApi.eq(FilterApi.longColumn("bar.spam"), 100L);
	FilterPredicate expected = FilterApi.and(a, b);
	// actual predicate
	FilterPredicate predicate = parquetIF.getPredicate();
	// check predicate
	assertEquals(expected, predicate);
}

Example 6

Source File: ParquetTableSourceTest.java From flink with Apache License 2.0

4 votes

@Test
public void testFieldsFilter() throws Exception {
	ParquetTableSource parquetTableSource = createNestedTestParquetTableSource(testPath);

	// expressions for supported predicates
	Expression exp1 = new GreaterThan(
		new PlannerResolvedFieldReference("foo", Types.LONG),
		new Literal(100L, Types.LONG));
	Expression exp2 = new EqualTo(
		new Literal(100L, Types.LONG),
		new PlannerResolvedFieldReference("bar.spam", Types.LONG));

	// unsupported predicate
	Expression unsupported = new EqualTo(
		new GetCompositeField(
			new ItemAt(
				new PlannerResolvedFieldReference(
					"nestedArray",
					ObjectArrayTypeInfo.getInfoFor(
						Types.ROW_NAMED(new String[] {"type", "name"}, Types.STRING, Types.STRING))),
					new Literal(1, Types.INT)),
					"type"),
		new Literal("test", Types.STRING));
	// invalid predicate
	Expression invalidPred = new EqualTo(
		new PlannerResolvedFieldReference("nonField", Types.LONG),
		// some invalid, non-serializable, literal (here an object of this test class)
		new Literal(new ParquetTableSourceTest(), Types.LONG)
	);

	List<Expression> exps = new ArrayList<>();
	exps.add(exp1);
	exps.add(exp2);
	exps.add(unsupported);
	exps.add(invalidPred);

	// apply predict on TableSource
	ParquetTableSource filtered = (ParquetTableSource) parquetTableSource.applyPredicate(exps);

	// ensure copy is returned
	assertNotSame(parquetTableSource, filtered);

	// ensure table schema is identical
	assertEquals(parquetTableSource.getTableSchema(), filtered.getTableSchema());

	// ensure return type is identical
	assertEquals(NESTED_ROW_TYPE, filtered.getReturnType());

	// ensure source description is not the same
	assertNotEquals(parquetTableSource.explainSource(), filtered.explainSource());

	// check that pushdown was recorded
	assertTrue(filtered.isFilterPushedDown());
	assertFalse(parquetTableSource.isFilterPushedDown());

	// ensure that supported predicates were removed from list of offered expressions
	assertEquals(2, exps.size());
	assertTrue(exps.contains(unsupported));
	assertTrue(exps.contains(invalidPred));

	// ensure ParquetInputFormat is correctly configured with filter
	DataSet<Row> data = filtered.getDataSet(ExecutionEnvironment.createLocalEnvironment());
	InputFormat<Row, ?> inputFormat = ((DataSource<Row>) data).getInputFormat();
	assertTrue(inputFormat instanceof ParquetRowInputFormat);
	ParquetRowInputFormat parquetIF = (ParquetRowInputFormat) inputFormat;

	// expected predicate
	FilterPredicate a = FilterApi.gt(FilterApi.longColumn("foo"), 100L);
	FilterPredicate b = FilterApi.eq(FilterApi.longColumn("bar.spam"), 100L);
	FilterPredicate expected = FilterApi.and(a, b);
	// actual predicate
	FilterPredicate predicate = parquetIF.getPredicate();
	// check predicate
	assertEquals(expected, predicate);
}