Examples with Ordering org.apache.drill.common.logical.data.Order.Ordering used on opensource projects

Example 1 with Ordering

use of org.apache.drill.common.logical.data.Order.Ordering in project drill by apache.

the class OperatorCodeGenerator method generateComparisons.

protected void generateComparisons(ClassGenerator<?> g, VectorAccessible batch) {
    g.setMappingSet(MAIN_MAPPING);
    for (Ordering od : popConfig.getOrderings()) {
        // first, we rewrite the evaluation stack for each side of the comparison.
        ErrorCollector collector = new ErrorCollectorImpl();
        final LogicalExpression expr = ExpressionTreeMaterializer.materialize(od.getExpr(), batch, collector, context.getFunctionRegistry());
        if (collector.hasErrors()) {
            throw UserException.unsupportedError().message("Failure while materializing expression. " + collector.toErrorString()).build(logger);
        }
        g.setMappingSet(LEFT_MAPPING);
        HoldingContainer left = g.addExpr(expr, ClassGenerator.BlkCreateMode.FALSE);
        g.setMappingSet(RIGHT_MAPPING);
        HoldingContainer right = g.addExpr(expr, ClassGenerator.BlkCreateMode.FALSE);
        g.setMappingSet(MAIN_MAPPING);
        // next we wrap the two comparison sides and add the expression block for the comparison.
        LogicalExpression fh = FunctionGenerationHelper.getOrderingComparator(od.nullsSortHigh(), left, right, context.getFunctionRegistry());
        HoldingContainer out = g.addExpr(fh, ClassGenerator.BlkCreateMode.FALSE);
        JConditional jc = g.getEvalBlock()._if(out.getValue().ne(JExpr.lit(0)));
        if (od.getDirection() == Direction.ASCENDING) {
            jc._then()._return(out.getValue());
        } else {
            jc._then()._return(out.getValue().minus());
        }
        g.rotateBlock();
    }
    g.rotateBlock();
    g.getEvalBlock()._return(JExpr.lit(0));
}

Example 2 with Ordering

use of org.apache.drill.common.logical.data.Order.Ordering in project drill by apache.

the class OperatorCodeGenerator method createNewMSorter.

private MSorter createNewMSorter(List<Ordering> orderings, VectorAccessible batch, MappingSet mainMapping, MappingSet leftMapping, MappingSet rightMapping) {
    CodeGenerator<MSorter> cg = CodeGenerator.get(MSorter.TEMPLATE_DEFINITION, context.getFunctionRegistry(), context.getOptions());
    cg.plainJavaCapable(true);
    // Uncomment out this line to debug the generated code.
    //  cg.saveCodeForDebugging(true);
    ClassGenerator<MSorter> g = cg.getRoot();
    g.setMappingSet(mainMapping);
    for (Ordering od : orderings) {
        // first, we rewrite the evaluation stack for each side of the comparison.
        ErrorCollector collector = new ErrorCollectorImpl();
        final LogicalExpression expr = ExpressionTreeMaterializer.materialize(od.getExpr(), batch, collector, context.getFunctionRegistry());
        if (collector.hasErrors()) {
            throw UserException.unsupportedError().message("Failure while materializing expression. " + collector.toErrorString()).build(logger);
        }
        g.setMappingSet(leftMapping);
        HoldingContainer left = g.addExpr(expr, ClassGenerator.BlkCreateMode.FALSE);
        g.setMappingSet(rightMapping);
        HoldingContainer right = g.addExpr(expr, ClassGenerator.BlkCreateMode.FALSE);
        g.setMappingSet(mainMapping);
        // next we wrap the two comparison sides and add the expression block for the comparison.
        LogicalExpression fh = FunctionGenerationHelper.getOrderingComparator(od.nullsSortHigh(), left, right, context.getFunctionRegistry());
        HoldingContainer out = g.addExpr(fh, ClassGenerator.BlkCreateMode.FALSE);
        JConditional jc = g.getEvalBlock()._if(out.getValue().ne(JExpr.lit(0)));
        if (od.getDirection() == Direction.ASCENDING) {
            jc._then()._return(out.getValue());
        } else {
            jc._then()._return(out.getValue().minus());
        }
        g.rotateBlock();
    }
    g.rotateBlock();
    g.getEvalBlock()._return(JExpr.lit(0));
    return getInstance(cg);
}

Example 3 with Ordering

use of org.apache.drill.common.logical.data.Order.Ordering in project drill by axbaretto.

the class TopNBatch method createNewPriorityQueue.

public static PriorityQueue createNewPriorityQueue(MappingSet mainMapping, MappingSet leftMapping, MappingSet rightMapping, OptionSet optionSet, FunctionLookupContext functionLookupContext, CodeCompiler codeCompiler, List<Ordering> orderings, VectorAccessible batch, boolean unionTypeEnabled, boolean codegenDump, int limit, BufferAllocator allocator, SelectionVectorMode mode) throws ClassTransformationException, IOException, SchemaChangeException {
    CodeGenerator<PriorityQueue> cg = CodeGenerator.get(PriorityQueue.TEMPLATE_DEFINITION, optionSet);
    cg.plainJavaCapable(true);
    // Uncomment out this line to debug the generated code.
    cg.saveCodeForDebugging(codegenDump);
    ClassGenerator<PriorityQueue> g = cg.getRoot();
    g.setMappingSet(mainMapping);
    for (Ordering od : orderings) {
        // first, we rewrite the evaluation stack for each side of the comparison.
        ErrorCollector collector = new ErrorCollectorImpl();
        final LogicalExpression expr = ExpressionTreeMaterializer.materialize(od.getExpr(), batch, collector, functionLookupContext, unionTypeEnabled);
        if (collector.hasErrors()) {
            throw new SchemaChangeException("Failure while materializing expression. " + collector.toErrorString());
        }
        g.setMappingSet(leftMapping);
        HoldingContainer left = g.addExpr(expr, ClassGenerator.BlkCreateMode.FALSE);
        g.setMappingSet(rightMapping);
        HoldingContainer right = g.addExpr(expr, ClassGenerator.BlkCreateMode.FALSE);
        g.setMappingSet(mainMapping);
        // next we wrap the two comparison sides and add the expression block for the comparison.
        LogicalExpression fh = FunctionGenerationHelper.getOrderingComparator(od.nullsSortHigh(), left, right, functionLookupContext);
        HoldingContainer out = g.addExpr(fh, ClassGenerator.BlkCreateMode.FALSE);
        JConditional jc = g.getEvalBlock()._if(out.getValue().ne(JExpr.lit(0)));
        if (od.getDirection() == Direction.ASCENDING) {
            jc._then()._return(out.getValue());
        } else {
            jc._then()._return(out.getValue().minus());
        }
        g.rotateBlock();
    }
    g.rotateBlock();
    g.getEvalBlock()._return(JExpr.lit(0));
    PriorityQueue q = codeCompiler.createInstance(cg);
    q.init(limit, allocator, mode == BatchSchema.SelectionVectorMode.TWO_BYTE);
    return q;
}

Example 4 with Ordering

use of org.apache.drill.common.logical.data.Order.Ordering in project drill by axbaretto.

the class MergingRecordBatch method generateComparisons.

private void generateComparisons(final ClassGenerator<?> g, final VectorAccessible batch) throws SchemaChangeException {
    g.setMappingSet(MAIN_MAPPING);
    for (final Ordering od : popConfig.getOrderings()) {
        // first, we rewrite the evaluation stack for each side of the comparison.
        final ErrorCollector collector = new ErrorCollectorImpl();
        final LogicalExpression expr = ExpressionTreeMaterializer.materialize(od.getExpr(), batch, collector, context.getFunctionRegistry());
        if (collector.hasErrors()) {
            throw new SchemaChangeException("Failure while materializing expression. " + collector.toErrorString());
        }
        g.setMappingSet(LEFT_MAPPING);
        final HoldingContainer left = g.addExpr(expr, ClassGenerator.BlkCreateMode.FALSE);
        g.setMappingSet(RIGHT_MAPPING);
        final HoldingContainer right = g.addExpr(expr, ClassGenerator.BlkCreateMode.FALSE);
        g.setMappingSet(MAIN_MAPPING);
        // next we wrap the two comparison sides and add the expression block for the comparison.
        final LogicalExpression fh = FunctionGenerationHelper.getOrderingComparator(od.nullsSortHigh(), left, right, context.getFunctionRegistry());
        final HoldingContainer out = g.addExpr(fh, ClassGenerator.BlkCreateMode.FALSE);
        final JConditional jc = g.getEvalBlock()._if(out.getValue().ne(JExpr.lit(0)));
        if (od.getDirection() == Direction.ASCENDING) {
            jc._then()._return(out.getValue());
        } else {
            jc._then()._return(out.getValue().minus());
        }
    }
    g.getEvalBlock()._return(JExpr.lit(0));
}

Example 5 with Ordering

use of org.apache.drill.common.logical.data.Order.Ordering in project drill by axbaretto.

the class OrderedPartitionRecordBatch method getCopier.

/**
 * Creates a copier that does a project for every Nth record from a VectorContainer incoming into VectorContainer
 * outgoing. Each Ordering in orderings generates a column, and evaluation of the expression associated with each
 * Ordering determines the value of each column. These records will later be sorted based on the values in each
 * column, in the same order as the orderings.
 *
 * @param sv4
 * @param incoming
 * @param outgoing
 * @param orderings
 * @return
 * @throws SchemaChangeException
 */
private SampleCopier getCopier(SelectionVector4 sv4, VectorContainer incoming, VectorContainer outgoing, List<Ordering> orderings, List<ValueVector> localAllocationVectors) throws SchemaChangeException {
    final ErrorCollector collector = new ErrorCollectorImpl();
    final ClassGenerator<SampleCopier> cg = CodeGenerator.getRoot(SampleCopier.TEMPLATE_DEFINITION, context.getOptions());
    // Note: disabled for now. This may require some debugging:
    // no tests are available for this operator.
    // cg.getCodeGenerator().plainOldJavaCapable(true);
    // Uncomment out this line to debug the generated code.
    // cg.getCodeGenerator().saveCodeForDebugging(true);
    int i = 0;
    for (Ordering od : orderings) {
        final LogicalExpression expr = ExpressionTreeMaterializer.materialize(od.getExpr(), incoming, collector, context.getFunctionRegistry());
        TypeProtos.MajorType.Builder builder = TypeProtos.MajorType.newBuilder().mergeFrom(expr.getMajorType()).clearMode().setMode(TypeProtos.DataMode.REQUIRED);
        TypeProtos.MajorType newType = builder.build();
        MaterializedField outputField = MaterializedField.create("f" + i++, newType);
        if (collector.hasErrors()) {
            throw new SchemaChangeException(String.format("Failure while trying to materialize incoming schema.  Errors:\n %s.", collector.toErrorString()));
        }
        @SuppressWarnings("resource") ValueVector vector = TypeHelper.getNewVector(outputField, oContext.getAllocator());
        localAllocationVectors.add(vector);
        TypedFieldId fid = outgoing.add(vector);
        ValueVectorWriteExpression write = new ValueVectorWriteExpression(fid, expr, true);
        HoldingContainer hc = cg.addExpr(write);
        cg.getEvalBlock()._if(hc.getValue().eq(JExpr.lit(0)))._then()._return(JExpr.FALSE);
    }
    cg.rotateBlock();
    cg.getEvalBlock()._return(JExpr.TRUE);
    outgoing.buildSchema(BatchSchema.SelectionVectorMode.NONE);
    try {
        SampleCopier sampleCopier = context.getImplementationClass(cg);
        sampleCopier.setupCopier(context, sv4, incoming, outgoing);
        return sampleCopier;
    } catch (ClassTransformationException | IOException e) {
        throw new SchemaChangeException(e);
    }
}