Examples with SortMergeJoinOperator org.apache.flink.table.runtime.operators.join.SortMergeJoinOperator used on opensource projects

Example 1 with SortMergeJoinOperator

use of org.apache.flink.table.runtime.operators.join.SortMergeJoinOperator in project flink by apache.

the class BatchExecSortMergeJoin method translateToPlanInternal.

@Override
@SuppressWarnings("unchecked")
protected Transformation<RowData> translateToPlanInternal(PlannerBase planner, ExecNodeConfig config) {
    ExecEdge leftInputEdge = getInputEdges().get(0);
    ExecEdge rightInputEdge = getInputEdges().get(1);
    // get input types
    RowType leftType = (RowType) leftInputEdge.getOutputType();
    RowType rightType = (RowType) rightInputEdge.getOutputType();
    LogicalType[] keyFieldTypes = IntStream.of(leftKeys).mapToObj(leftType::getTypeAt).toArray(LogicalType[]::new);
    RowType keyType = RowType.of(keyFieldTypes);
    GeneratedJoinCondition condFunc = JoinUtil.generateConditionFunction(config.getTableConfig(), nonEquiCondition, leftType, rightType);
    long externalBufferMemory = config.get(ExecutionConfigOptions.TABLE_EXEC_RESOURCE_EXTERNAL_BUFFER_MEMORY).getBytes();
    long sortMemory = config.get(ExecutionConfigOptions.TABLE_EXEC_RESOURCE_SORT_MEMORY).getBytes();
    int externalBufferNum = 1;
    if (joinType == FlinkJoinType.FULL) {
        externalBufferNum = 2;
    }
    long managedMemory = externalBufferMemory * externalBufferNum + sortMemory * 2;
    SortCodeGenerator leftSortGen = newSortGen(config, leftKeys, leftType);
    SortCodeGenerator rightSortGen = newSortGen(config, rightKeys, rightType);
    int[] keyPositions = IntStream.range(0, leftKeys.length).toArray();
    SortMergeJoinOperator operator = new SortMergeJoinOperator(1.0 * externalBufferMemory / managedMemory, joinType, leftIsSmaller, condFunc, ProjectionCodeGenerator.generateProjection(new CodeGeneratorContext(config.getTableConfig()), "SMJProjection", leftType, keyType, leftKeys), ProjectionCodeGenerator.generateProjection(new CodeGeneratorContext(config.getTableConfig()), "SMJProjection", rightType, keyType, rightKeys), leftSortGen.generateNormalizedKeyComputer("LeftComputer"), leftSortGen.generateRecordComparator("LeftComparator"), rightSortGen.generateNormalizedKeyComputer("RightComputer"), rightSortGen.generateRecordComparator("RightComparator"), newSortGen(config, keyPositions, keyType).generateRecordComparator("KeyComparator"), filterNulls);
    Transformation<RowData> leftInputTransform = (Transformation<RowData>) leftInputEdge.translateToPlan(planner);
    Transformation<RowData> rightInputTransform = (Transformation<RowData>) rightInputEdge.translateToPlan(planner);
    return ExecNodeUtil.createTwoInputTransformation(leftInputTransform, rightInputTransform, createTransformationName(config), createTransformationDescription(config), SimpleOperatorFactory.of(operator), InternalTypeInfo.of(getOutputType()), rightInputTransform.getParallelism(), managedMemory);
}