Examples with RowSignature org.apache.druid.segment.column.RowSignature used on opensource projects

Example 36 with RowSignature

use of org.apache.druid.segment.column.RowSignature in project druid by druid-io.

the class StringSqlAggregator method toDruidAggregation.

@Nullable
@Override
public Aggregation toDruidAggregation(PlannerContext plannerContext, RowSignature rowSignature, VirtualColumnRegistry virtualColumnRegistry, RexBuilder rexBuilder, String name, AggregateCall aggregateCall, Project project, List<Aggregation> existingAggregations, boolean finalizeAggregations) {
    final List<DruidExpression> arguments = aggregateCall.getArgList().stream().map(i -> Expressions.fromFieldAccess(rowSignature, project, i)).map(rexNode -> Expressions.toDruidExpression(plannerContext, rowSignature, rexNode)).collect(Collectors.toList());
    if (arguments.stream().anyMatch(Objects::isNull)) {
        return null;
    }
    RexNode separatorNode = Expressions.fromFieldAccess(rowSignature, project, aggregateCall.getArgList().get(1));
    if (!separatorNode.isA(SqlKind.LITERAL)) {
        // separator must be a literal
        return null;
    }
    String separator = RexLiteral.stringValue(separatorNode);
    if (separator == null) {
        // separator must not be null
        return null;
    }
    Integer maxSizeBytes = null;
    if (arguments.size() > 2) {
        RexNode maxBytes = Expressions.fromFieldAccess(rowSignature, project, aggregateCall.getArgList().get(2));
        if (!maxBytes.isA(SqlKind.LITERAL)) {
            // maxBytes must be a literal
            return null;
        }
        maxSizeBytes = ((Number) RexLiteral.value(maxBytes)).intValue();
    }
    final DruidExpression arg = arguments.get(0);
    final ExprMacroTable macroTable = plannerContext.getExprMacroTable();
    final String initialvalue = "[]";
    final ColumnType elementType = ColumnType.STRING;
    final String fieldName;
    if (arg.isDirectColumnAccess()) {
        fieldName = arg.getDirectColumn();
    } else {
        fieldName = virtualColumnRegistry.getOrCreateVirtualColumnForExpression(arg, elementType);
    }
    final String finalizer = StringUtils.format("if(array_length(o) == 0, null, array_to_string(o, '%s'))", separator);
    final NotDimFilter dimFilter = new NotDimFilter(new SelectorDimFilter(fieldName, null, null));
    if (aggregateCall.isDistinct()) {
        return Aggregation.create(// string_agg ignores nulls
        new FilteredAggregatorFactory(new ExpressionLambdaAggregatorFactory(name, ImmutableSet.of(fieldName), null, initialvalue, null, true, false, false, StringUtils.format("array_set_add(\"__acc\", \"%s\")", fieldName), StringUtils.format("array_set_add_all(\"__acc\", \"%s\")", name), null, finalizer, maxSizeBytes != null ? new HumanReadableBytes(maxSizeBytes) : null, macroTable), dimFilter));
    } else {
        return Aggregation.create(// string_agg ignores nulls
        new FilteredAggregatorFactory(new ExpressionLambdaAggregatorFactory(name, ImmutableSet.of(fieldName), null, initialvalue, null, true, false, false, StringUtils.format("array_append(\"__acc\", \"%s\")", fieldName), StringUtils.format("array_concat(\"__acc\", \"%s\")", name), null, finalizer, maxSizeBytes != null ? new HumanReadableBytes(maxSizeBytes) : null, macroTable), dimFilter));
    }
}

Example 37 with RowSignature

use of org.apache.druid.segment.column.RowSignature in project druid by druid-io.

the class BitwiseSqlAggregator method toDruidAggregation.

@Nullable
@Override
public Aggregation toDruidAggregation(PlannerContext plannerContext, RowSignature rowSignature, VirtualColumnRegistry virtualColumnRegistry, RexBuilder rexBuilder, String name, AggregateCall aggregateCall, Project project, List<Aggregation> existingAggregations, boolean finalizeAggregations) {
    final List<DruidExpression> arguments = aggregateCall.getArgList().stream().map(i -> Expressions.fromFieldAccess(rowSignature, project, i)).map(rexNode -> Expressions.toDruidExpression(plannerContext, rowSignature, rexNode)).collect(Collectors.toList());
    if (arguments.stream().anyMatch(Objects::isNull)) {
        return null;
    }
    final DruidExpression arg = arguments.get(0);
    final ExprMacroTable macroTable = plannerContext.getExprMacroTable();
    final String fieldName;
    if (arg.isDirectColumnAccess()) {
        fieldName = arg.getDirectColumn();
    } else {
        fieldName = virtualColumnRegistry.getOrCreateVirtualColumnForExpression(arg, ColumnType.LONG);
    }
    return Aggregation.create(new FilteredAggregatorFactory(new ExpressionLambdaAggregatorFactory(name, ImmutableSet.of(fieldName), null, "0", null, null, false, false, StringUtils.format("%s(\"__acc\", \"%s\")", op.getDruidFunction(), fieldName), null, null, null, null, macroTable), new NotDimFilter(new SelectorDimFilter(fieldName, null, null))));
}

Example 38 with RowSignature

use of org.apache.druid.segment.column.RowSignature in project druid by druid-io.

the class EarliestLatestBySqlAggregator method toDruidAggregation.

@Nullable
@Override
public Aggregation toDruidAggregation(final PlannerContext plannerContext, final RowSignature rowSignature, final VirtualColumnRegistry virtualColumnRegistry, final RexBuilder rexBuilder, final String name, final AggregateCall aggregateCall, final Project project, final List<Aggregation> existingAggregations, final boolean finalizeAggregations) {
    final List<RexNode> rexNodes = aggregateCall.getArgList().stream().map(i -> Expressions.fromFieldAccess(rowSignature, project, i)).collect(Collectors.toList());
    final List<DruidExpression> args = Expressions.toDruidExpressions(plannerContext, rowSignature, rexNodes);
    if (args == null) {
        return null;
    }
    final String aggregatorName = finalizeAggregations ? Calcites.makePrefixedName(name, "a") : name;
    final ColumnType outputType = Calcites.getColumnTypeForRelDataType(aggregateCall.getType());
    if (outputType == null) {
        throw new ISE("Cannot translate output sqlTypeName[%s] to Druid type for aggregator[%s]", aggregateCall.getType().getSqlTypeName(), aggregateCall.getName());
    }
    final String fieldName = EarliestLatestAnySqlAggregator.getColumnName(plannerContext, virtualColumnRegistry, args.get(0), rexNodes.get(0));
    final AggregatorFactory theAggFactory;
    switch(args.size()) {
        case 2:
            theAggFactory = aggregatorType.createAggregatorFactory(aggregatorName, fieldName, EarliestLatestAnySqlAggregator.getColumnName(plannerContext, virtualColumnRegistry, args.get(1), rexNodes.get(1)), outputType, -1);
            break;
        case 3:
            theAggFactory = aggregatorType.createAggregatorFactory(aggregatorName, fieldName, EarliestLatestAnySqlAggregator.getColumnName(plannerContext, virtualColumnRegistry, args.get(1), rexNodes.get(1)), outputType, RexLiteral.intValue(rexNodes.get(2)));
            break;
        default:
            throw new IAE("aggregation[%s], Invalid number of arguments[%,d] to [%s] operator", aggregatorName, args.size(), aggregatorType.name());
    }
    return Aggregation.create(Collections.singletonList(theAggFactory), finalizeAggregations ? new FinalizingFieldAccessPostAggregator(name, aggregatorName) : null);
}

Example 39 with RowSignature

use of org.apache.druid.segment.column.RowSignature in project druid by druid-io.

the class ArraySqlAggregator method toDruidAggregation.

@Nullable
@Override
public Aggregation toDruidAggregation(PlannerContext plannerContext, RowSignature rowSignature, VirtualColumnRegistry virtualColumnRegistry, RexBuilder rexBuilder, String name, AggregateCall aggregateCall, Project project, List<Aggregation> existingAggregations, boolean finalizeAggregations) {
    final List<RexNode> arguments = aggregateCall.getArgList().stream().map(i -> Expressions.fromFieldAccess(rowSignature, project, i)).collect(Collectors.toList());
    Integer maxSizeBytes = null;
    if (arguments.size() > 1) {
        RexNode maxBytes = arguments.get(1);
        if (!maxBytes.isA(SqlKind.LITERAL)) {
            // maxBytes must be a literal
            return null;
        }
        maxSizeBytes = ((Number) RexLiteral.value(maxBytes)).intValue();
    }
    final DruidExpression arg = Expressions.toDruidExpression(plannerContext, rowSignature, arguments.get(0));
    if (arg == null) {
        // can't translate argument
        return null;
    }
    final ExprMacroTable macroTable = plannerContext.getExprMacroTable();
    final String fieldName;
    final String initialvalue;
    final ColumnType druidType = Calcites.getValueTypeForRelDataTypeFull(aggregateCall.getType());
    final ColumnType elementType;
    if (druidType == null || !druidType.isArray()) {
        initialvalue = "[]";
        elementType = ColumnType.STRING;
    } else {
        initialvalue = ExpressionType.fromColumnTypeStrict(druidType).asTypeString() + "[]";
        elementType = (ColumnType) druidType.getElementType();
    }
    if (arg.isDirectColumnAccess()) {
        fieldName = arg.getDirectColumn();
    } else {
        fieldName = virtualColumnRegistry.getOrCreateVirtualColumnForExpression(arg, elementType);
    }
    if (aggregateCall.isDistinct()) {
        return Aggregation.create(new ExpressionLambdaAggregatorFactory(name, ImmutableSet.of(fieldName), null, initialvalue, null, true, true, false, StringUtils.format("array_set_add(\"__acc\", \"%s\")", fieldName), StringUtils.format("array_set_add_all(\"__acc\", \"%s\")", name), null, null, maxSizeBytes != null ? new HumanReadableBytes(maxSizeBytes) : null, macroTable));
    } else {
        return Aggregation.create(new ExpressionLambdaAggregatorFactory(name, ImmutableSet.of(fieldName), null, initialvalue, null, true, true, false, StringUtils.format("array_append(\"__acc\", \"%s\")", fieldName), StringUtils.format("array_concat(\"__acc\", \"%s\")", name), null, null, maxSizeBytes != null ? new HumanReadableBytes(maxSizeBytes) : null, macroTable));
    }
}

Example 40 with RowSignature

use of org.apache.druid.segment.column.RowSignature in project druid by druid-io.

the class EarliestLatestAnySqlAggregator method toDruidAggregation.

@Nullable
@Override
public Aggregation toDruidAggregation(final PlannerContext plannerContext, final RowSignature rowSignature, final VirtualColumnRegistry virtualColumnRegistry, final RexBuilder rexBuilder, final String name, final AggregateCall aggregateCall, final Project project, final List<Aggregation> existingAggregations, final boolean finalizeAggregations) {
    final List<RexNode> rexNodes = aggregateCall.getArgList().stream().map(i -> Expressions.fromFieldAccess(rowSignature, project, i)).collect(Collectors.toList());
    final List<DruidExpression> args = Expressions.toDruidExpressions(plannerContext, rowSignature, rexNodes);
    if (args == null) {
        return null;
    }
    final String aggregatorName = finalizeAggregations ? Calcites.makePrefixedName(name, "a") : name;
    final ColumnType outputType = Calcites.getColumnTypeForRelDataType(aggregateCall.getType());
    if (outputType == null) {
        throw new ISE("Cannot translate output sqlTypeName[%s] to Druid type for aggregator[%s]", aggregateCall.getType().getSqlTypeName(), aggregateCall.getName());
    }
    final String fieldName = getColumnName(plannerContext, virtualColumnRegistry, args.get(0), rexNodes.get(0));
    final AggregatorFactory theAggFactory;
    switch(args.size()) {
        case 1:
            theAggFactory = aggregatorType.createAggregatorFactory(aggregatorName, fieldName, null, outputType, -1);
            break;
        case 2:
            theAggFactory = aggregatorType.createAggregatorFactory(aggregatorName, fieldName, null, outputType, RexLiteral.intValue(rexNodes.get(1)));
            break;
        default:
            throw new IAE("aggregation[%s], Invalid number of arguments[%,d] to [%s] operator", aggregatorName, args.size(), aggregatorType.name());
    }
    return Aggregation.create(Collections.singletonList(theAggFactory), finalizeAggregations ? new FinalizingFieldAccessPostAggregator(name, aggregatorName) : null);
}