Examples with RelDataType org.apache.calcite.rel.type.RelDataType used on opensource projects

Example 1 with RelDataType

use of org.apache.calcite.rel.type.RelDataType in project hive by apache.

the class HiveJoinAddNotNullRule method getNotNullConditions.

private static List<RexNode> getNotNullConditions(RelOptCluster cluster, RexBuilder rexBuilder, RelNode input, Set<Integer> inputKeyPositions, Set<String> pushedPredicates) {
    final List<RexNode> newConditions = Lists.newArrayList();
    for (int pos : inputKeyPositions) {
        RelDataType keyType = input.getRowType().getFieldList().get(pos).getType();
        // Nothing to do if key cannot be null
        if (!keyType.isNullable()) {
            continue;
        }
        RexNode cond = rexBuilder.makeCall(SqlStdOperatorTable.IS_NOT_NULL, rexBuilder.makeInputRef(input, pos));
        String digest = cond.toString();
        if (pushedPredicates.add(digest)) {
            newConditions.add(cond);
        }
    }
    return newConditions;
}

Example 2 with RelDataType

use of org.apache.calcite.rel.type.RelDataType in project storm by apache.

the class TridentCalcRel method tridentPlan.

@Override
public void tridentPlan(TridentPlanCreator planCreator) throws Exception {
    // SingleRel
    RelNode input = getInput();
    StormRelUtils.getStormRelInput(input).tridentPlan(planCreator);
    Stream inputStream = planCreator.pop().toStream();
    String stageName = StormRelUtils.getStageName(this);
    RelDataType inputRowType = getInput(0).getRowType();
    List<String> outputFieldNames = getRowType().getFieldNames();
    int outputCount = outputFieldNames.size();
    // filter
    ExecutableExpression filterInstance = null;
    RexLocalRef condition = program.getCondition();
    if (condition != null) {
        RexNode conditionNode = program.expandLocalRef(condition);
        filterInstance = planCreator.createScalarInstance(Lists.newArrayList(conditionNode), inputRowType, StormRelUtils.getClassName(this));
    }
    // projection
    ExecutableExpression projectionInstance = null;
    List<RexLocalRef> projectList = program.getProjectList();
    if (projectList != null && !projectList.isEmpty()) {
        List<RexNode> expandedNodes = new ArrayList<>();
        for (RexLocalRef project : projectList) {
            expandedNodes.add(program.expandLocalRef(project));
        }
        projectionInstance = planCreator.createScalarInstance(expandedNodes, inputRowType, StormRelUtils.getClassName(this));
    }
    if (projectionInstance == null && filterInstance == null) {
        // it shouldn't be happen
        throw new IllegalStateException("Either projection or condition, or both should be provided.");
    }
    final Stream finalStream = inputStream.flatMap(new EvaluationCalc(filterInstance, projectionInstance, outputCount, planCreator.getDataContext()), new Fields(outputFieldNames)).name(stageName);
    planCreator.addStream(finalStream);
}

Example 3 with RelDataType

use of org.apache.calcite.rel.type.RelDataType in project storm by apache.

the class TridentFilterRel method tridentPlan.

@Override
public void tridentPlan(TridentPlanCreator planCreator) throws Exception {
    // SingleRel
    RelNode input = getInput();
    StormRelUtils.getStormRelInput(input).tridentPlan(planCreator);
    Stream inputStream = planCreator.pop().toStream();
    String stageName = StormRelUtils.getStageName(this);
    List<RexNode> childExps = getChildExps();
    RelDataType inputRowType = getInput(0).getRowType();
    String filterClassName = StormRelUtils.getClassName(this);
    ExecutableExpression filterInstance = planCreator.createScalarInstance(childExps, inputRowType, filterClassName);
    IAggregatableStream finalStream = inputStream.filter(new EvaluationFilter(filterInstance, planCreator.getDataContext())).name(stageName);
    planCreator.addStream(finalStream);
}

Example 4 with RelDataType

use of org.apache.calcite.rel.type.RelDataType in project storm by apache.

the class StormSqlImpl method updateSchema.

private List<FieldInfo> updateSchema(SqlCreateTable n) {
    TableBuilderInfo builder = new TableBuilderInfo(typeFactory);
    List<FieldInfo> fields = new ArrayList<>();
    for (ColumnDefinition col : n.fieldList()) {
        builder.field(col.name(), col.type(), col.constraint());
        RelDataType dataType = col.type().deriveType(typeFactory);
        Class<?> javaType = (Class<?>) typeFactory.getJavaClass(dataType);
        ColumnConstraint constraint = col.constraint();
        boolean isPrimary = constraint != null && constraint instanceof ColumnConstraint.PrimaryKey;
        fields.add(new FieldInfo(col.name(), javaType, isPrimary));
    }
    if (n.parallelism() != null) {
        builder.parallelismHint(n.parallelism());
    }
    Table table = builder.build();
    schema.add(n.tableName(), table);
    return fields;
}

Example 5 with RelDataType

use of org.apache.calcite.rel.type.RelDataType in project storm by apache.

the class RelNodeCompiler method visitFilter.

@Override
public Void visitFilter(Filter filter, List<Void> inputStreams) throws Exception {
    beginStage(filter);
    List<RexNode> childExps = filter.getChildExps();
    RelDataType inputRowType = filter.getInput(0).getRowType();
    pw.print("Context context = new StormContext(Processor.dataContext);\n");
    pw.print("context.values = _data.toArray();\n");
    pw.print("Object[] outputValues = new Object[1];\n");
    pw.write(rexCompiler.compileToBlock(childExps, inputRowType).toString());
    String r = "((Boolean) outputValues[0])";
    if (filter.getCondition().getType().isNullable()) {
        pw.print(String.format("    if (%s != null && %s) { ctx.emit(_data); }\n", r, r));
    } else {
        pw.print(String.format("    if (%s) { ctx.emit(_data); }\n", r, r));
    }
    endStage();
    return null;
}