Examples with BeamSqlTable org.apache.beam.sdk.extensions.sql.meta.BeamSqlTable used on opensource projects

Example 16 with BeamSqlTable

use of org.apache.beam.sdk.extensions.sql.meta.BeamSqlTable in project beam by apache.

the class BeamIOPushDownRule method onMatch.

// ~ Methods ----------------------------------------------------------------
@Override
public void onMatch(RelOptRuleCall call) {
    final BeamIOSourceRel ioSourceRel = call.rel(1);
    final BeamSqlTable beamSqlTable = ioSourceRel.getBeamSqlTable();
    if (ioSourceRel instanceof BeamPushDownIOSourceRel) {
        return;
    }
    // Nested rows are not supported at the moment
    for (RelDataTypeField field : ioSourceRel.getRowType().getFieldList()) {
        if (field.getType() instanceof RelRecordType) {
            return;
        }
    }
    final Calc calc = call.rel(0);
    final RexProgram program = calc.getProgram();
    final Pair<ImmutableList<RexNode>, ImmutableList<RexNode>> projectFilter = program.split();
    final RelDataType calcInputRowType = program.getInputRowType();
    // When predicate push-down is not supported - all filters are unsupported.
    final BeamSqlTableFilter tableFilter = beamSqlTable.constructFilter(projectFilter.right);
    if (!beamSqlTable.supportsProjects().isSupported() && tableFilter instanceof DefaultTableFilter) {
        // Either project or filter push-down must be supported by the IO.
        return;
    }
    Set<String> usedFields = new LinkedHashSet<>();
    if (!(tableFilter instanceof DefaultTableFilter) && !beamSqlTable.supportsProjects().isSupported()) {
        // When applying standalone filter push-down all fields must be project by an IO.
        // With a single exception: Calc projects all fields (in the same order) and does nothing
        // else.
        usedFields.addAll(calcInputRowType.getFieldNames());
    } else {
        // Find all input refs used by projects
        for (RexNode project : projectFilter.left) {
            findUtilizedInputRefs(calcInputRowType, project, usedFields);
        }
        // Find all input refs used by filters
        for (RexNode filter : tableFilter.getNotSupported()) {
            findUtilizedInputRefs(calcInputRowType, filter, usedFields);
        }
    }
    if (usedFields.isEmpty()) {
        // No need to do push-down for queries like this: "select UPPER('hello')".
        return;
    }
    // IO only projects fields utilized by a calc.
    if (tableFilter.getNotSupported().containsAll(projectFilter.right) && usedFields.containsAll(ioSourceRel.getRowType().getFieldNames())) {
        return;
    }
    FieldAccessDescriptor resolved = FieldAccessDescriptor.withFieldNames(usedFields);
    resolved = resolved.resolve(beamSqlTable.getSchema());
    if (canDropCalc(program, beamSqlTable.supportsProjects(), tableFilter)) {
        call.transformTo(ioSourceRel.createPushDownRel(calc.getRowType(), resolved.getFieldsAccessed().stream().map(FieldDescriptor::getFieldName).collect(Collectors.toList()), tableFilter));
        return;
    }
    // IO only projects fields utilised by a calc.
    if (tableFilter.getNotSupported().equals(projectFilter.right) && usedFields.containsAll(ioSourceRel.getRowType().getFieldNames())) {
        return;
    }
    RelNode result = constructNodesWithPushDown(resolved, call.builder(), ioSourceRel, tableFilter, calc.getRowType(), projectFilter.left);
    if (tableFilter.getNotSupported().size() <= projectFilter.right.size() || usedFields.size() < calcInputRowType.getFieldCount()) {
        // Smaller Calc programs are indisputably better, as well as IOs with less projected fields.
        // We can consider something with the same number of filters.
        call.transformTo(result);
    }
}

Example 17 with BeamSqlTable

use of org.apache.beam.sdk.extensions.sql.meta.BeamSqlTable in project beam by apache.

the class BigQueryTestTableProvider method buildBeamSqlTable.

@Override
public BeamSqlTable buildBeamSqlTable(Table table) {
    BeamSqlTable t = beamSqlTableMap.get(table.getLocation());
    if (t != null) {
        return t;
    }
    t = new BigQueryTestTable(table, BigQueryUtils.ConversionOptions.builder().setTruncateTimestamps(firstNonNull(table.getProperties().getBoolean("truncateTimestamps"), false) ? BigQueryUtils.ConversionOptions.TruncateTimestamps.TRUNCATE : BigQueryUtils.ConversionOptions.TruncateTimestamps.REJECT).build());
    beamSqlTableMap.put(table.getLocation(), t);
    return t;
}

Example 18 with BeamSqlTable

use of org.apache.beam.sdk.extensions.sql.meta.BeamSqlTable in project beam by apache.

the class KafkaTableProviderTest method testBuildBeamSqlNestedThriftTable.

@Test
public void testBuildBeamSqlNestedThriftTable() {
    Table table = mockNestedThriftTable("hello", SimpleThriftMessage.class, TCompactProtocol.Factory.class);
    BeamSqlTable sqlTable = provider.buildBeamSqlTable(table);
    assertNotNull(sqlTable);
    assertTrue(sqlTable instanceof NestedPayloadKafkaTable);
    BeamKafkaTable kafkaTable = (BeamKafkaTable) sqlTable;
    assertEquals(LOCATION_BROKER, kafkaTable.getBootstrapServers());
    assertEquals(ImmutableList.of(LOCATION_TOPIC), kafkaTable.getTopics());
}

Example 19 with BeamSqlTable

use of org.apache.beam.sdk.extensions.sql.meta.BeamSqlTable in project beam by apache.

the class KafkaTableProviderTest method testBuildWithExtraServers.

@Test
public void testBuildWithExtraServers() {
    Table table = mockTableWithExtraServers("hello", ImmutableList.of("localhost:1111", "localhost:2222"));
    BeamSqlTable sqlTable = provider.buildBeamSqlTable(table);
    assertNotNull(sqlTable);
    assertTrue(sqlTable instanceof BeamKafkaCSVTable);
    BeamKafkaCSVTable kafkaTable = (BeamKafkaCSVTable) sqlTable;
    assertEquals(LOCATION_BROKER + ",localhost:1111,localhost:2222", kafkaTable.getBootstrapServers());
    assertEquals(ImmutableList.of(LOCATION_TOPIC), kafkaTable.getTopics());
}

Example 20 with BeamSqlTable

use of org.apache.beam.sdk.extensions.sql.meta.BeamSqlTable in project beam by apache.

the class KafkaTableProviderTest method testBuildBeamSqlThriftTable.

@Test
public void testBuildBeamSqlThriftTable() {
    Table table = mockThriftTable("hello", SimpleThriftMessage.class, TCompactProtocol.Factory.class);
    BeamSqlTable sqlTable = provider.buildBeamSqlTable(table);
    assertNotNull(sqlTable);
    assertTrue(sqlTable instanceof BeamKafkaTable);
    BeamKafkaTable kafkaTable = (BeamKafkaTable) sqlTable;
    assertEquals(LOCATION_BROKER, kafkaTable.getBootstrapServers());
    assertEquals(ImmutableList.of(LOCATION_TOPIC), kafkaTable.getTopics());
}