Examples with VarCharHolder org.apache.drill.exec.expr.holders.VarCharHolder used on opensource projects

Example 21 with VarCharHolder

use of org.apache.drill.exec.expr.holders.VarCharHolder in project drill by apache.

the class TestByteComparisonFunctions method testEqualCompareLong.

@Test
public void testEqualCompareLong() {
    final VarCharHolder left = helloLong;
    final VarCharHolder right = helloLong;
    assertTrue(ByteFunctionHelpers.compare(left.buffer, left.start, left.end, right.buffer, right.start, right.end) == 0);
}

Example 22 with VarCharHolder

use of org.apache.drill.exec.expr.holders.VarCharHolder in project drill by apache.

the class TestByteComparisonFunctions method testNotEqual.

@Test
public void testNotEqual() {
    final VarCharHolder left = hello;
    final VarCharHolder right = goodbye;
    assertTrue(ByteFunctionHelpers.equal(left.buffer, left.start, left.end, right.buffer, right.start, right.end) == 0);
}

Example 23 with VarCharHolder

use of org.apache.drill.exec.expr.holders.VarCharHolder in project drill by apache.

the class TestByteComparisonFunctions method testEqualCompare.

@Test
public void testEqualCompare() {
    final VarCharHolder left = hello;
    final VarCharHolder right = hello;
    assertTrue(ByteFunctionHelpers.compare(left.buffer, left.start, left.end, right.buffer, right.start, right.end) == 0);
}

Example 24 with VarCharHolder

use of org.apache.drill.exec.expr.holders.VarCharHolder in project drill by apache.

the class MappifyUtility method mappify.

public static DrillBuf mappify(FieldReader reader, BaseWriter.ComplexWriter writer, DrillBuf buffer, String caller) {
    // Currently we expect single map or null as input
    if (reader.getType().getMode() == DataMode.REPEATED || (reader.isSet() && reader.getType().getMinorType() != TypeProtos.MinorType.MAP)) {
        throw new DrillRuntimeException("kvgen function only supports Simple maps as input");
    }
    BaseWriter.ListWriter listWriter = writer.rootAsList();
    listWriter.startList();
    BaseWriter.MapWriter mapWriter = listWriter.map();
    if (!reader.isSet()) {
        // Return empty list
        listWriter.endList();
        return buffer;
    }
    // Iterate over the fields in the map
    Iterator<String> fieldIterator = reader.iterator();
    while (fieldIterator.hasNext()) {
        String str = fieldIterator.next();
        FieldReader fieldReader = reader.reader(str);
        // Skip the field if its null
        if (!fieldReader.isSet()) {
            mapWriter.end();
            continue;
        }
        // writing a new field, start a new map
        mapWriter.start();
        // write "key":"columnname" into the map
        VarCharHolder vh = new VarCharHolder();
        byte[] b = str.getBytes(Charsets.UTF_8);
        buffer = buffer.reallocIfNeeded(b.length);
        buffer.setBytes(0, b);
        vh.start = 0;
        vh.end = b.length;
        vh.buffer = buffer;
        mapWriter.varChar(fieldKey).write(vh);
        // Write the value to the map
        MapUtility.writeToMapFromReader(fieldReader, mapWriter, caller);
        mapWriter.end();
    }
    listWriter.endList();
    return buffer;
}

Example 25 with VarCharHolder

use of org.apache.drill.exec.expr.holders.VarCharHolder in project drill by apache.

the class DrillConstExecutor method reduce.

@Override
@SuppressWarnings("deprecation")
public void reduce(RexBuilder rexBuilder, List<RexNode> constExps, List<RexNode> reducedValues) {
    for (RexNode newCall : constExps) {
        LogicalExpression logEx = DrillOptiq.toDrill(new DrillParseContext(plannerSettings), (RelNode) null, /* input rel */
        newCall);
        ErrorCollectorImpl errors = new ErrorCollectorImpl();
        LogicalExpression materializedExpr = ExpressionTreeMaterializer.materialize(logEx, null, errors, funcImplReg);
        if (errors.getErrorCount() != 0) {
            String message = String.format("Failure while materializing expression in constant expression evaluator [%s].  Errors: %s", newCall.toString(), errors.toString());
            throw UserException.planError().message(message).build(logger);
        }
        if (NON_REDUCIBLE_TYPES.contains(materializedExpr.getMajorType().getMinorType())) {
            logger.debug("Constant expression not folded due to return type {}, complete expression: {}", materializedExpr.getMajorType(), ExpressionStringBuilder.toString(materializedExpr));
            reducedValues.add(newCall);
            continue;
        }
        ValueHolder output = InterpreterEvaluator.evaluateConstantExpr(udfUtilities, materializedExpr);
        RelDataTypeFactory typeFactory = rexBuilder.getTypeFactory();
        if (materializedExpr.getMajorType().getMode() == TypeProtos.DataMode.OPTIONAL && TypeHelper.isNull(output)) {
            SqlTypeName sqlTypeName = TypeInferenceUtils.getCalciteTypeFromDrillType(materializedExpr.getMajorType().getMinorType());
            if (sqlTypeName == null) {
                String message = String.format("Error reducing constant expression, unsupported type: %s.", materializedExpr.getMajorType().getMinorType());
                throw UserException.unsupportedError().message(message).build(logger);
            }
            RelDataType type = TypeInferenceUtils.createCalciteTypeWithNullability(typeFactory, sqlTypeName, true);
            reducedValues.add(rexBuilder.makeNullLiteral(type));
            continue;
        }
        Function<ValueHolder, RexNode> literator = valueHolder -> {
            switch(materializedExpr.getMajorType().getMinorType()) {
                case INT:
                    {
                        int value = (materializedExpr.getMajorType().getMode() == TypeProtos.DataMode.OPTIONAL) ? ((NullableIntHolder) valueHolder).value : ((IntHolder) valueHolder).value;
                        return rexBuilder.makeLiteral(new BigDecimal(value), TypeInferenceUtils.createCalciteTypeWithNullability(typeFactory, SqlTypeName.INTEGER, newCall.getType().isNullable()), false);
                    }
                case BIGINT:
                    {
                        long value = (materializedExpr.getMajorType().getMode() == TypeProtos.DataMode.OPTIONAL) ? ((NullableBigIntHolder) valueHolder).value : ((BigIntHolder) valueHolder).value;
                        return rexBuilder.makeLiteral(new BigDecimal(value), TypeInferenceUtils.createCalciteTypeWithNullability(typeFactory, SqlTypeName.BIGINT, newCall.getType().isNullable()), false);
                    }
                case FLOAT4:
                    {
                        float value = (materializedExpr.getMajorType().getMode() == TypeProtos.DataMode.OPTIONAL) ? ((NullableFloat4Holder) valueHolder).value : ((Float4Holder) valueHolder).value;
                        // BigDecimal cannot represent them.
                        if (!Float.isFinite(value)) {
                            return rexBuilder.makeLiteral(Float.toString(value));
                        }
                        return rexBuilder.makeLiteral(new BigDecimal(value), TypeInferenceUtils.createCalciteTypeWithNullability(typeFactory, SqlTypeName.FLOAT, newCall.getType().isNullable()), false);
                    }
                case FLOAT8:
                    {
                        double value = (materializedExpr.getMajorType().getMode() == TypeProtos.DataMode.OPTIONAL) ? ((NullableFloat8Holder) valueHolder).value : ((Float8Holder) valueHolder).value;
                        // BigDecimal cannot represent them.
                        if (!Double.isFinite(value)) {
                            return rexBuilder.makeLiteral(Double.toString(value));
                        }
                        return rexBuilder.makeLiteral(new BigDecimal(value), TypeInferenceUtils.createCalciteTypeWithNullability(typeFactory, SqlTypeName.DOUBLE, newCall.getType().isNullable()), false);
                    }
                case VARCHAR:
                    {
                        String value = (materializedExpr.getMajorType().getMode() == TypeProtos.DataMode.OPTIONAL) ? StringFunctionHelpers.getStringFromVarCharHolder((NullableVarCharHolder) valueHolder) : StringFunctionHelpers.getStringFromVarCharHolder((VarCharHolder) valueHolder);
                        RelDataType type = typeFactory.createSqlType(SqlTypeName.VARCHAR, newCall.getType().getPrecision());
                        RelDataType typeWithNullability = typeFactory.createTypeWithNullability(type, newCall.getType().isNullable());
                        return rexBuilder.makeLiteral(value, typeWithNullability, false);
                    }
                case BIT:
                    {
                        boolean value = (materializedExpr.getMajorType().getMode() == TypeProtos.DataMode.OPTIONAL) ? ((NullableBitHolder) valueHolder).value == 1 : ((BitHolder) valueHolder).value == 1;
                        return rexBuilder.makeLiteral(value, TypeInferenceUtils.createCalciteTypeWithNullability(typeFactory, SqlTypeName.BOOLEAN, newCall.getType().isNullable()), false);
                    }
                case DATE:
                    {
                        Calendar value = (materializedExpr.getMajorType().getMode() == TypeProtos.DataMode.OPTIONAL) ? new DateTime(((NullableDateHolder) valueHolder).value, DateTimeZone.UTC).toCalendar(null) : new DateTime(((DateHolder) valueHolder).value, DateTimeZone.UTC).toCalendar(null);
                        return rexBuilder.makeLiteral(DateString.fromCalendarFields(value), TypeInferenceUtils.createCalciteTypeWithNullability(typeFactory, SqlTypeName.DATE, newCall.getType().isNullable()), false);
                    }
                case DECIMAL9:
                    {
                        long value;
                        int scale;
                        if (materializedExpr.getMajorType().getMode() == TypeProtos.DataMode.OPTIONAL) {
                            NullableDecimal9Holder decimal9Out = (NullableDecimal9Holder) valueHolder;
                            value = decimal9Out.value;
                            scale = decimal9Out.scale;
                        } else {
                            Decimal9Holder decimal9Out = (Decimal9Holder) valueHolder;
                            value = decimal9Out.value;
                            scale = decimal9Out.scale;
                        }
                        return rexBuilder.makeLiteral(new BigDecimal(BigInteger.valueOf(value), scale), TypeInferenceUtils.createCalciteTypeWithNullability(typeFactory, SqlTypeName.DECIMAL, newCall.getType().isNullable()), false);
                    }
                case DECIMAL18:
                    {
                        long value;
                        int scale;
                        if (materializedExpr.getMajorType().getMode() == TypeProtos.DataMode.OPTIONAL) {
                            NullableDecimal18Holder decimal18Out = (NullableDecimal18Holder) valueHolder;
                            value = decimal18Out.value;
                            scale = decimal18Out.scale;
                        } else {
                            Decimal18Holder decimal18Out = (Decimal18Holder) valueHolder;
                            value = decimal18Out.value;
                            scale = decimal18Out.scale;
                        }
                        return rexBuilder.makeLiteral(new BigDecimal(BigInteger.valueOf(value), scale), TypeInferenceUtils.createCalciteTypeWithNullability(typeFactory, SqlTypeName.DECIMAL, newCall.getType().isNullable()), false);
                    }
                case VARDECIMAL:
                    {
                        DrillBuf buffer;
                        int start;
                        int end;
                        int scale;
                        int precision;
                        if (materializedExpr.getMajorType().getMode() == TypeProtos.DataMode.OPTIONAL) {
                            NullableVarDecimalHolder varDecimalHolder = (NullableVarDecimalHolder) valueHolder;
                            buffer = varDecimalHolder.buffer;
                            start = varDecimalHolder.start;
                            end = varDecimalHolder.end;
                            scale = varDecimalHolder.scale;
                            precision = varDecimalHolder.precision;
                        } else {
                            VarDecimalHolder varDecimalHolder = (VarDecimalHolder) valueHolder;
                            buffer = varDecimalHolder.buffer;
                            start = varDecimalHolder.start;
                            end = varDecimalHolder.end;
                            scale = varDecimalHolder.scale;
                            precision = varDecimalHolder.precision;
                        }
                        return rexBuilder.makeLiteral(org.apache.drill.exec.util.DecimalUtility.getBigDecimalFromDrillBuf(buffer, start, end - start, scale), typeFactory.createSqlType(SqlTypeName.DECIMAL, precision, scale), false);
                    }
                case DECIMAL28SPARSE:
                    {
                        DrillBuf buffer;
                        int start;
                        int scale;
                        if (materializedExpr.getMajorType().getMode() == TypeProtos.DataMode.OPTIONAL) {
                            NullableDecimal28SparseHolder decimal28Out = (NullableDecimal28SparseHolder) valueHolder;
                            buffer = decimal28Out.buffer;
                            start = decimal28Out.start;
                            scale = decimal28Out.scale;
                        } else {
                            Decimal28SparseHolder decimal28Out = (Decimal28SparseHolder) valueHolder;
                            buffer = decimal28Out.buffer;
                            start = decimal28Out.start;
                            scale = decimal28Out.scale;
                        }
                        return rexBuilder.makeLiteral(org.apache.drill.exec.util.DecimalUtility.getBigDecimalFromSparse(buffer, start * 20, 5, scale), TypeInferenceUtils.createCalciteTypeWithNullability(typeFactory, SqlTypeName.DECIMAL, newCall.getType().isNullable()), false);
                    }
                case DECIMAL38SPARSE:
                    {
                        DrillBuf buffer;
                        int start;
                        int scale;
                        if (materializedExpr.getMajorType().getMode() == TypeProtos.DataMode.OPTIONAL) {
                            NullableDecimal38SparseHolder decimal38Out = (NullableDecimal38SparseHolder) valueHolder;
                            buffer = decimal38Out.buffer;
                            start = decimal38Out.start;
                            scale = decimal38Out.scale;
                        } else {
                            Decimal38SparseHolder decimal38Out = (Decimal38SparseHolder) valueHolder;
                            buffer = decimal38Out.buffer;
                            start = decimal38Out.start;
                            scale = decimal38Out.scale;
                        }
                        return rexBuilder.makeLiteral(org.apache.drill.exec.util.DecimalUtility.getBigDecimalFromSparse(buffer, start * 24, 6, scale), TypeInferenceUtils.createCalciteTypeWithNullability(typeFactory, SqlTypeName.DECIMAL, newCall.getType().isNullable()), false);
                    }
                case TIME:
                    {
                        Calendar value = (materializedExpr.getMajorType().getMode() == TypeProtos.DataMode.OPTIONAL) ? new DateTime(((NullableTimeHolder) valueHolder).value, DateTimeZone.UTC).toCalendar(null) : new DateTime(((TimeHolder) valueHolder).value, DateTimeZone.UTC).toCalendar(null);
                        RelDataType type = typeFactory.createSqlType(SqlTypeName.TIME, newCall.getType().getPrecision());
                        RelDataType typeWithNullability = typeFactory.createTypeWithNullability(type, newCall.getType().isNullable());
                        return rexBuilder.makeLiteral(TimeString.fromCalendarFields(value), typeWithNullability, false);
                    }
                case TIMESTAMP:
                    {
                        Calendar value = (materializedExpr.getMajorType().getMode() == TypeProtos.DataMode.OPTIONAL) ? new DateTime(((NullableTimeStampHolder) valueHolder).value, DateTimeZone.UTC).toCalendar(null) : new DateTime(((TimeStampHolder) valueHolder).value, DateTimeZone.UTC).toCalendar(null);
                        RelDataType type = typeFactory.createSqlType(SqlTypeName.TIMESTAMP, newCall.getType().getPrecision());
                        RelDataType typeWithNullability = typeFactory.createTypeWithNullability(type, newCall.getType().isNullable());
                        return rexBuilder.makeLiteral(TimestampString.fromCalendarFields(value), typeWithNullability, false);
                    }
                case INTERVALYEAR:
                    {
                        BigDecimal value = (materializedExpr.getMajorType().getMode() == TypeProtos.DataMode.OPTIONAL) ? new BigDecimal(((NullableIntervalYearHolder) valueHolder).value) : new BigDecimal(((IntervalYearHolder) valueHolder).value);
                        return rexBuilder.makeLiteral(value, TypeInferenceUtils.createCalciteTypeWithNullability(typeFactory, SqlTypeName.INTERVAL_YEAR_MONTH, newCall.getType().isNullable()), false);
                    }
                case INTERVALDAY:
                    {
                        int days;
                        int milliseconds;
                        if (materializedExpr.getMajorType().getMode() == TypeProtos.DataMode.OPTIONAL) {
                            NullableIntervalDayHolder intervalDayOut = (NullableIntervalDayHolder) valueHolder;
                            days = intervalDayOut.days;
                            milliseconds = intervalDayOut.milliseconds;
                        } else {
                            IntervalDayHolder intervalDayOut = (IntervalDayHolder) valueHolder;
                            days = intervalDayOut.days;
                            milliseconds = intervalDayOut.milliseconds;
                        }
                        return rexBuilder.makeLiteral(new BigDecimal(days * (long) DateUtilities.daysToStandardMillis + milliseconds), TypeInferenceUtils.createCalciteTypeWithNullability(typeFactory, SqlTypeName.INTERVAL_DAY, newCall.getType().isNullable()), false);
                    }
                // as new types may be added in the future.
                default:
                    logger.debug("Constant expression not folded due to return type {}, complete expression: {}", materializedExpr.getMajorType(), ExpressionStringBuilder.toString(materializedExpr));
                    return newCall;
            }
        };
        reducedValues.add(literator.apply(output));
    }
}