Examples with LogicalJoin org.apache.calcite.rel.logical.LogicalJoin used on opensource projects

Example 6 with LogicalJoin

use of org.apache.calcite.rel.logical.LogicalJoin in project calcite by apache.

the class SqlToRelConverter method substituteSubQuery.

private void substituteSubQuery(Blackboard bb, SubQuery subQuery) {
    final RexNode expr = subQuery.expr;
    if (expr != null) {
        // Already done.
        return;
    }
    final SqlBasicCall call;
    final RelNode rel;
    final SqlNode query;
    final RelOptUtil.Exists converted;
    switch(subQuery.node.getKind()) {
        case CURSOR:
            convertCursor(bb, subQuery);
            return;
        case MULTISET_QUERY_CONSTRUCTOR:
        case MULTISET_VALUE_CONSTRUCTOR:
        case ARRAY_QUERY_CONSTRUCTOR:
            rel = convertMultisets(ImmutableList.of(subQuery.node), bb);
            subQuery.expr = bb.register(rel, JoinRelType.INNER);
            return;
        case IN:
        case NOT_IN:
        case SOME:
        case ALL:
            call = (SqlBasicCall) subQuery.node;
            query = call.operand(1);
            if (!config.isExpand() && !(query instanceof SqlNodeList)) {
                return;
            }
            final SqlNode leftKeyNode = call.operand(0);
            final List<RexNode> leftKeys;
            switch(leftKeyNode.getKind()) {
                case ROW:
                    leftKeys = Lists.newArrayList();
                    for (SqlNode sqlExpr : ((SqlBasicCall) leftKeyNode).getOperandList()) {
                        leftKeys.add(bb.convertExpression(sqlExpr));
                    }
                    break;
                default:
                    leftKeys = ImmutableList.of(bb.convertExpression(leftKeyNode));
            }
            if (query instanceof SqlNodeList) {
                SqlNodeList valueList = (SqlNodeList) query;
                if (!containsNullLiteral(valueList) && valueList.size() < config.getInSubQueryThreshold()) {
                    // We're under the threshold, so convert to OR.
                    subQuery.expr = convertInToOr(bb, leftKeys, valueList, (SqlInOperator) call.getOperator());
                    return;
                }
            // Otherwise, let convertExists translate
            // values list into an inline table for the
            // reference to Q below.
            }
            // Project out the search columns from the left side
            // Q1:
            // "select from emp where emp.deptno in (select col1 from T)"
            // 
            // is converted to
            // 
            // "select from
            // emp inner join (select distinct col1 from T)) q
            // on emp.deptno = q.col1
            // 
            // Q2:
            // "select from emp where emp.deptno not in (Q)"
            // 
            // is converted to
            // 
            // "select from
            // emp left outer join (select distinct col1, TRUE from T) q
            // on emp.deptno = q.col1
            // where emp.deptno <> null
            // and q.indicator <> TRUE"
            // 
            final RelDataType targetRowType = SqlTypeUtil.promoteToRowType(typeFactory, validator.getValidatedNodeType(leftKeyNode), null);
            final boolean notIn = call.getOperator().kind == SqlKind.NOT_IN;
            converted = convertExists(query, RelOptUtil.SubQueryType.IN, subQuery.logic, notIn, targetRowType);
            if (converted.indicator) {
                // Generate
                // emp CROSS JOIN (SELECT COUNT(*) AS c,
                // COUNT(deptno) AS ck FROM dept)
                final RelDataType longType = typeFactory.createSqlType(SqlTypeName.BIGINT);
                // fragile
                final RelNode seek = converted.r.getInput(0);
                final int keyCount = leftKeys.size();
                final List<Integer> args = ImmutableIntList.range(0, keyCount);
                LogicalAggregate aggregate = LogicalAggregate.create(seek, ImmutableBitSet.of(), null, ImmutableList.of(AggregateCall.create(SqlStdOperatorTable.COUNT, false, false, ImmutableList.<Integer>of(), -1, longType, null), AggregateCall.create(SqlStdOperatorTable.COUNT, false, false, args, -1, longType, null)));
                LogicalJoin join = LogicalJoin.create(bb.root, aggregate, rexBuilder.makeLiteral(true), ImmutableSet.<CorrelationId>of(), JoinRelType.INNER);
                bb.setRoot(join, false);
            }
            final RexNode rex = bb.register(converted.r, converted.outerJoin ? JoinRelType.LEFT : JoinRelType.INNER, leftKeys);
            RelOptUtil.Logic logic = subQuery.logic;
            switch(logic) {
                case TRUE_FALSE_UNKNOWN:
                case UNKNOWN_AS_TRUE:
                    if (!converted.indicator) {
                        logic = RelOptUtil.Logic.TRUE_FALSE;
                    }
            }
            subQuery.expr = translateIn(logic, bb.root, rex);
            if (notIn) {
                subQuery.expr = rexBuilder.makeCall(SqlStdOperatorTable.NOT, subQuery.expr);
            }
            return;
        case EXISTS:
            // "select from emp where exists (select a from T)"
            // 
            // is converted to the following if the sub-query is correlated:
            // 
            // "select from emp left outer join (select AGG_TRUE() as indicator
            // from T group by corr_var) q where q.indicator is true"
            // 
            // If there is no correlation, the expression is replaced with a
            // boolean indicating whether the sub-query returned 0 or >= 1 row.
            call = (SqlBasicCall) subQuery.node;
            query = call.operand(0);
            if (!config.isExpand()) {
                return;
            }
            converted = convertExists(query, RelOptUtil.SubQueryType.EXISTS, subQuery.logic, true, null);
            assert !converted.indicator;
            if (convertNonCorrelatedSubQuery(subQuery, bb, converted.r, true)) {
                return;
            }
            subQuery.expr = bb.register(converted.r, JoinRelType.LEFT);
            return;
        case SCALAR_QUERY:
            // to a constant expression.
            if (!config.isExpand()) {
                return;
            }
            call = (SqlBasicCall) subQuery.node;
            query = call.operand(0);
            converted = convertExists(query, RelOptUtil.SubQueryType.SCALAR, subQuery.logic, true, null);
            assert !converted.indicator;
            if (convertNonCorrelatedSubQuery(subQuery, bb, converted.r, false)) {
                return;
            }
            rel = convertToSingleValueSubq(query, converted.r);
            subQuery.expr = bb.register(rel, JoinRelType.LEFT);
            return;
        case SELECT:
            // This is used when converting multiset queries:
            // 
            // select * from unnest(select multiset[deptno] from emps);
            // 
            converted = convertExists(subQuery.node, RelOptUtil.SubQueryType.SCALAR, subQuery.logic, true, null);
            assert !converted.indicator;
            subQuery.expr = bb.register(converted.r, JoinRelType.LEFT);
            return;
        default:
            throw new AssertionError("unexpected kind of sub-query: " + subQuery.node);
    }
}

Example 7 with LogicalJoin

use of org.apache.calcite.rel.logical.LogicalJoin in project samza by apache.

the class TestJoinTranslator method testTranslateStreamToTableJoin.

private void testTranslateStreamToTableJoin(boolean isRemoteTable) throws IOException, ClassNotFoundException {
    // setup mock values to the constructor of JoinTranslator
    final String logicalOpId = "sql0_join3";
    final int queryId = 0;
    LogicalJoin mockJoin = PowerMockito.mock(LogicalJoin.class);
    TranslatorContext mockTranslatorContext = mock(TranslatorContext.class);
    RelNode mockLeftInput = PowerMockito.mock(LogicalTableScan.class);
    RelNode mockRightInput = mock(RelNode.class);
    List<RelNode> inputs = new ArrayList<>();
    inputs.add(mockLeftInput);
    inputs.add(mockRightInput);
    RelOptTable mockLeftTable = mock(RelOptTable.class);
    when(mockLeftInput.getTable()).thenReturn(mockLeftTable);
    List<String> qualifiedTableName = Arrays.asList("test", "LeftTable");
    when(mockLeftTable.getQualifiedName()).thenReturn(qualifiedTableName);
    when(mockLeftInput.getId()).thenReturn(1);
    when(mockRightInput.getId()).thenReturn(2);
    when(mockJoin.getId()).thenReturn(3);
    when(mockJoin.getInputs()).thenReturn(inputs);
    when(mockJoin.getLeft()).thenReturn(mockLeftInput);
    when(mockJoin.getRight()).thenReturn(mockRightInput);
    RexCall mockJoinCondition = mock(RexCall.class);
    when(mockJoinCondition.isAlwaysTrue()).thenReturn(false);
    when(mockJoinCondition.getKind()).thenReturn(SqlKind.EQUALS);
    when(mockJoin.getCondition()).thenReturn(mockJoinCondition);
    RexInputRef mockLeftConditionInput = mock(RexInputRef.class);
    RexInputRef mockRightConditionInput = mock(RexInputRef.class);
    when(mockLeftConditionInput.getIndex()).thenReturn(0);
    when(mockRightConditionInput.getIndex()).thenReturn(0);
    List<RexNode> condOperands = new ArrayList<>();
    condOperands.add(mockLeftConditionInput);
    condOperands.add(mockRightConditionInput);
    when(mockJoinCondition.getOperands()).thenReturn(condOperands);
    RelDataType mockLeftCondDataType = mock(RelDataType.class);
    RelDataType mockRightCondDataType = mock(RelDataType.class);
    when(mockLeftCondDataType.getSqlTypeName()).thenReturn(SqlTypeName.BOOLEAN);
    when(mockRightCondDataType.getSqlTypeName()).thenReturn(SqlTypeName.BOOLEAN);
    when(mockLeftConditionInput.getType()).thenReturn(mockLeftCondDataType);
    when(mockRightConditionInput.getType()).thenReturn(mockRightCondDataType);
    RelDataType mockLeftRowType = mock(RelDataType.class);
    // ?? why ??
    when(mockLeftRowType.getFieldCount()).thenReturn(0);
    when(mockLeftInput.getRowType()).thenReturn(mockLeftRowType);
    List<String> leftFieldNames = Collections.singletonList("test_table_field1");
    List<String> rightStreamFieldNames = Collections.singletonList("test_stream_field1");
    when(mockLeftRowType.getFieldNames()).thenReturn(leftFieldNames);
    RelDataType mockRightRowType = mock(RelDataType.class);
    when(mockRightInput.getRowType()).thenReturn(mockRightRowType);
    when(mockRightRowType.getFieldNames()).thenReturn(rightStreamFieldNames);
    StreamApplicationDescriptorImpl mockAppDesc = mock(StreamApplicationDescriptorImpl.class);
    OperatorSpec<Object, SamzaSqlRelMessage> mockLeftInputOp = mock(OperatorSpec.class);
    MessageStream<SamzaSqlRelMessage> mockLeftInputStream = new MessageStreamImpl<>(mockAppDesc, mockLeftInputOp);
    when(mockTranslatorContext.getMessageStream(eq(mockLeftInput.getId()))).thenReturn(mockLeftInputStream);
    OperatorSpec<Object, SamzaSqlRelMessage> mockRightInputOp = mock(OperatorSpec.class);
    MessageStream<SamzaSqlRelMessage> mockRightInputStream = new MessageStreamImpl<>(mockAppDesc, mockRightInputOp);
    when(mockTranslatorContext.getMessageStream(eq(mockRightInput.getId()))).thenReturn(mockRightInputStream);
    when(mockTranslatorContext.getStreamAppDescriptor()).thenReturn(mockAppDesc);
    InputOperatorSpec mockInputOp = mock(InputOperatorSpec.class);
    OutputStreamImpl mockOutputStream = mock(OutputStreamImpl.class);
    when(mockInputOp.isKeyed()).thenReturn(true);
    when(mockOutputStream.isKeyed()).thenReturn(true);
    doAnswer(this.getRegisterMessageStreamAnswer()).when(mockTranslatorContext).registerMessageStream(eq(3), any(MessageStream.class));
    RexToJavaCompiler mockCompiler = mock(RexToJavaCompiler.class);
    when(mockTranslatorContext.getExpressionCompiler()).thenReturn(mockCompiler);
    Expression mockExpr = mock(Expression.class);
    when(mockCompiler.compile(any(), any())).thenReturn(mockExpr);
    if (isRemoteTable) {
        doAnswer(this.getRegisteredTableAnswer()).when(mockAppDesc).getTable(any(RemoteTableDescriptor.class));
    } else {
        IntermediateMessageStreamImpl mockPartitionedStream = new IntermediateMessageStreamImpl(mockAppDesc, mockInputOp, mockOutputStream);
        when(mockAppDesc.getIntermediateStream(any(String.class), any(Serde.class), eq(false))).thenReturn(mockPartitionedStream);
        doAnswer(this.getRegisteredTableAnswer()).when(mockAppDesc).getTable(any(RocksDbTableDescriptor.class));
    }
    when(mockJoin.getJoinType()).thenReturn(JoinRelType.INNER);
    SamzaSqlExecutionContext mockExecutionContext = mock(SamzaSqlExecutionContext.class);
    when(mockTranslatorContext.getExecutionContext()).thenReturn(mockExecutionContext);
    SamzaSqlApplicationConfig mockAppConfig = mock(SamzaSqlApplicationConfig.class);
    when(mockExecutionContext.getSamzaSqlApplicationConfig()).thenReturn(mockAppConfig);
    Map<String, SqlIOConfig> ssConfigBySource = mock(HashMap.class);
    when(mockAppConfig.getInputSystemStreamConfigBySource()).thenReturn(ssConfigBySource);
    SqlIOConfig mockIOConfig = mock(SqlIOConfig.class);
    TableDescriptor mockTableDesc;
    if (isRemoteTable) {
        mockTableDesc = mock(RemoteTableDescriptor.class);
    } else {
        mockTableDesc = mock(RocksDbTableDescriptor.class);
    }
    when(ssConfigBySource.get(String.join(".", qualifiedTableName))).thenReturn(mockIOConfig);
    when(mockIOConfig.getTableDescriptor()).thenReturn(Optional.of(mockTableDesc));
    JoinTranslator joinTranslator = new JoinTranslator(logicalOpId, "", queryId);
    // Verify Metrics Works with Join
    Context mockContext = mock(Context.class);
    ContainerContext mockContainerContext = mock(ContainerContext.class);
    TestMetricsRegistryImpl testMetricsRegistryImpl = new TestMetricsRegistryImpl();
    when(mockContext.getContainerContext()).thenReturn(mockContainerContext);
    when(mockContainerContext.getContainerMetricsRegistry()).thenReturn(testMetricsRegistryImpl);
    TranslatorInputMetricsMapFunction inputMetricsMF = joinTranslator.getInputMetricsMF();
    assertNotNull(inputMetricsMF);
    inputMetricsMF.init(mockContext);
    TranslatorOutputMetricsMapFunction outputMetricsMF = joinTranslator.getOutputMetricsMF();
    assertNotNull(outputMetricsMF);
    outputMetricsMF.init(mockContext);
    assertEquals(1, testMetricsRegistryImpl.getCounters().size());
    assertEquals(2, testMetricsRegistryImpl.getCounters().get(logicalOpId).size());
    assertEquals(0, testMetricsRegistryImpl.getCounters().get(logicalOpId).get(0).getCount());
    assertEquals(0, testMetricsRegistryImpl.getCounters().get(logicalOpId).get(1).getCount());
    assertEquals(1, testMetricsRegistryImpl.getGauges().size());
    // Apply translate() method to verify that we are getting the correct map operator constructed
    joinTranslator.translate(mockJoin, mockTranslatorContext);
    // make sure that context has been registered with LogicFilter and output message streams
    verify(mockTranslatorContext, times(1)).registerMessageStream(3, this.getRegisteredMessageStream(3));
    when(mockTranslatorContext.getRelNode(3)).thenReturn(mockJoin);
    when(mockTranslatorContext.getMessageStream(3)).thenReturn(this.getRegisteredMessageStream(3));
    StreamTableJoinOperatorSpec joinSpec = (StreamTableJoinOperatorSpec) Whitebox.getInternalState(this.getRegisteredMessageStream(3), "operatorSpec");
    assertNotNull(joinSpec);
    assertEquals(joinSpec.getOpCode(), OperatorSpec.OpCode.JOIN);
    // Verify joinSpec has the corresponding setup
    StreamTableJoinFunction joinFn = joinSpec.getJoinFn();
    assertNotNull(joinFn);
    if (isRemoteTable) {
        assertTrue(joinFn instanceof SamzaSqlRemoteTableJoinFunction);
    } else {
        assertTrue(joinFn instanceof SamzaSqlLocalTableJoinFunction);
    }
    assertTrue(Whitebox.getInternalState(joinFn, "isTablePosOnRight").equals(false));
    assertEquals(Collections.singletonList(0), Whitebox.getInternalState(joinFn, "streamFieldIds"));
    assertEquals(leftFieldNames, Whitebox.getInternalState(joinFn, "tableFieldNames"));
    List<String> outputFieldNames = new ArrayList<>();
    outputFieldNames.addAll(leftFieldNames);
    outputFieldNames.addAll(rightStreamFieldNames);
    assertEquals(outputFieldNames, Whitebox.getInternalState(joinFn, "outFieldNames"));
}

Example 8 with LogicalJoin

use of org.apache.calcite.rel.logical.LogicalJoin in project samza by apache.

the class TestQueryPlanner method testRemoteJoinWithUdfAndFilterHelper.

void testRemoteJoinWithUdfAndFilterHelper(boolean enableOptimizer) throws SamzaSqlValidatorException {
    Map<String, String> staticConfigs = SamzaSqlTestConfig.fetchStaticConfigsWithFactories(1);
    String sql = "Insert into testavro.enrichedPageViewTopic " + "select pv.pageKey as __key__, pv.pageKey as pageKey, coalesce(null, 'N/A') as companyName," + "       p.name as profileName, p.address as profileAddress " + "from testRemoteStore.Profile.`$table` as p " + "join testavro.PAGEVIEW as pv " + " on p.__key__ = BuildOutputRecord('id', pv.profileId)" + " where p.name = 'Mike' and pv.profileId = 1 and p.name = pv.pageKey";
    staticConfigs.put(SamzaSqlApplicationConfig.CFG_SQL_STMT, sql);
    staticConfigs.put(SamzaSqlApplicationConfig.CFG_SQL_ENABLE_PLAN_OPTIMIZER, Boolean.toString(enableOptimizer));
    Config samzaConfig = new MapConfig(staticConfigs);
    DslConverter dslConverter = new SamzaSqlDslConverterFactory().create(samzaConfig);
    Collection<RelRoot> relRoots = dslConverter.convertDsl(sql);
    /*
      Query plan without optimization:
      LogicalProject(__key__=[$9], pageKey=[$9], companyName=['N/A'], profileName=[$2], profileAddress=[$4])
        LogicalFilter(condition=[AND(=($2, 'Mike'), =($10, 1), =($2, $9))])  ==> Only the second condition could be pushed down.
          LogicalProject(__key__=[$0], id=[$1], name=[$2], companyId=[$3], address=[$4], selfEmployed=[$5],
                                  phoneNumbers=[$6], mapValues=[$7], __key__0=[$8], pageKey=[$9], profileId=[$10])
                                  ==> ProjectMergeRule removes this redundant node.
            LogicalJoin(condition=[=($0, $11)], joinType=[inner])
              LogicalTableScan(table=[[testRemoteStore, Profile, $table]])
              LogicalProject(__key__=[$0], pageKey=[$1], profileId=[$2], $f3=[BuildOutputRecord('id', $2)])  ==> Filter is pushed above project.
                LogicalTableScan(table=[[testavro, PAGEVIEW]])

      Query plan with optimization:
      LogicalProject(__key__=[$9], pageKey=[$9], companyName=['N/A'], profileName=[$2], profileAddress=[$4])
          LogicalFilter(condition=[AND(=($2, 'Mike'), =($2, $9))])
            LogicalJoin(condition=[=($0, $11)], joinType=[inner])
              LogicalTableScan(table=[[testRemoteStore, Profile, $table]])
              LogicalFilter(condition=[=($2, 1)])
                LogicalProject(__key__=[$0], pageKey=[$1], profileId=[$2], $f3=[BuildOutputRecord('id', $2)])
                  LogicalTableScan(table=[[testavro, PAGEVIEW]])
     */
    assertEquals(1, relRoots.size());
    RelRoot relRoot = relRoots.iterator().next();
    RelNode relNode = relRoot.rel;
    assertTrue(relNode instanceof LogicalProject);
    relNode = relNode.getInput(0);
    assertTrue(relNode instanceof LogicalFilter);
    if (enableOptimizer) {
        assertEquals("AND(=($2, $9), =($2, 'Mike'))", ((LogicalFilter) relNode).getCondition().toString());
    } else {
        assertEquals("AND(=($2, $9), =(1, $10), =($2, 'Mike'))", ((LogicalFilter) relNode).getCondition().toString());
    }
    relNode = relNode.getInput(0);
    if (enableOptimizer) {
        assertTrue(relNode instanceof LogicalJoin);
        assertEquals(2, relNode.getInputs().size());
    } else {
        assertTrue(relNode instanceof LogicalProject);
        relNode = relNode.getInput(0);
    }
    LogicalJoin join = (LogicalJoin) relNode;
    RelNode left = join.getLeft();
    RelNode right = join.getRight();
    assertTrue(left instanceof LogicalTableScan);
    if (enableOptimizer) {
        assertTrue(right instanceof LogicalFilter);
        assertEquals("=(1, $2)", ((LogicalFilter) right).getCondition().toString());
        relNode = right.getInput(0);
    } else {
        relNode = right;
    }
    assertTrue(relNode instanceof LogicalProject);
    relNode = relNode.getInput(0);
    assertTrue(relNode instanceof LogicalTableScan);
}

Example 9 with LogicalJoin

use of org.apache.calcite.rel.logical.LogicalJoin in project samza by apache.

the class TestQueryPlanner method testRemoteJoinFilterPushDownWithUdfInFilterAndOptimizer.

@Test
public void testRemoteJoinFilterPushDownWithUdfInFilterAndOptimizer() throws SamzaSqlValidatorException {
    Map<String, String> staticConfigs = SamzaSqlTestConfig.fetchStaticConfigsWithFactories(1);
    String sql = "Insert into testavro.enrichedPageViewTopic " + "select pv.pageKey as __key__, pv.pageKey as pageKey, coalesce(null, 'N/A') as companyName," + "       p.name as profileName, p.address as profileAddress " + "from testRemoteStore.Profile.`$table` as p " + "join testavro.PAGEVIEW as pv " + " on p.__key__ = pv.profileId" + " where p.name = pv.pageKey AND p.name = 'Mike' AND pv.profileId = MyTest(pv.profileId)";
    staticConfigs.put(SamzaSqlApplicationConfig.CFG_SQL_STMT, sql);
    staticConfigs.put(SamzaSqlApplicationConfig.CFG_SQL_ENABLE_PLAN_OPTIMIZER, Boolean.toString(true));
    Config samzaConfig = new MapConfig(staticConfigs);
    DslConverter dslConverter = new SamzaSqlDslConverterFactory().create(samzaConfig);
    Collection<RelRoot> relRoots = dslConverter.convertDsl(sql);
    /*
      Query plan without optimization:
      LogicalProject(__key__=[$9], pageKey=[$9], companyName=['N/A'], profileName=[$2], profileAddress=[$4])
        LogicalFilter(condition=[AND(=($2, $9), =($2, 'Mike'), =($10, CAST(MyTest($10)):INTEGER))])
          LogicalJoin(condition=[=($0, $10)], joinType=[inner])
            LogicalTableScan(table=[[testRemoteStore, Profile, $table]])
            LogicalTableScan(table=[[testavro, PAGEVIEW]])

      Query plan with optimization:
      LogicalProject(__key__=[$9], pageKey=[$9], companyName=['N/A'], profileName=[$2], profileAddress=[$4])
        LogicalFilter(condition=[AND(=($2, $9), =($2, 'Mike'))])
          LogicalJoin(condition=[=($0, $10)], joinType=[inner])
            LogicalTableScan(table=[[testRemoteStore, Profile, $table]])
            LogicalFilter(condition=[=($2, CAST(MyTest($2)):INTEGER)])
              LogicalTableScan(table=[[testavro, PAGEVIEW]])
     */
    assertEquals(1, relRoots.size());
    RelRoot relRoot = relRoots.iterator().next();
    RelNode relNode = relRoot.rel;
    assertTrue(relNode instanceof LogicalProject);
    relNode = relNode.getInput(0);
    assertTrue(relNode instanceof LogicalFilter);
    assertEquals("AND(=($2, $9), =($2, 'Mike'))", ((LogicalFilter) relNode).getCondition().toString());
    relNode = relNode.getInput(0);
    assertTrue(relNode instanceof LogicalJoin);
    assertEquals(2, relNode.getInputs().size());
    LogicalJoin join = (LogicalJoin) relNode;
    RelNode left = join.getLeft();
    RelNode right = join.getRight();
    assertTrue(left instanceof LogicalTableScan);
    assertTrue(right instanceof LogicalFilter);
    assertEquals("=($2, CAST(MyTest($2)):INTEGER)", ((LogicalFilter) right).getCondition().toString());
    assertTrue(right.getInput(0) instanceof LogicalTableScan);
}

Example 10 with LogicalJoin

use of org.apache.calcite.rel.logical.LogicalJoin in project flink by apache.

the class FlinkSemiAntiJoinProjectTransposeRule method onMatch.

// ~ Methods ----------------------------------------------------------------
public void onMatch(RelOptRuleCall call) {
    LogicalJoin join = call.rel(0);
    LogicalProject project = call.rel(1);
    // convert the semi/anti join condition to reflect the LHS with the project
    // pulled up
    RexNode newCondition = adjustCondition(project, join);
    Join newJoin = LogicalJoin.create(project.getInput(), join.getRight(), join.getHints(), newCondition, join.getVariablesSet(), join.getJoinType());
    // Create the new projection. Note that the projection expressions
    // are the same as the original because they only reference the LHS
    // of the semi/anti join and the semi/anti join only projects out the LHS
    final RelBuilder relBuilder = call.builder();
    relBuilder.push(newJoin);
    relBuilder.project(project.getProjects(), project.getRowType().getFieldNames());
    call.transformTo(relBuilder.build());
}