Examples with NullableFloat8Holder org.apache.drill.exec.expr.holders.NullableFloat8Holder used on opensource projects

Example 1 with NullableFloat8Holder

use of org.apache.drill.exec.expr.holders.NullableFloat8Holder in project drill by apache.

the class DrillConstExecutor method reduce.

@Override
public void reduce(final RexBuilder rexBuilder, List<RexNode> constExps, final List<RexNode> reducedValues) {
    for (final RexNode newCall : constExps) {
        LogicalExpression logEx = DrillOptiq.toDrill(new DrillParseContext(plannerSettings), (RelNode) null, /* input rel */
        newCall);
        ErrorCollectorImpl errors = new ErrorCollectorImpl();
        final 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);
        final 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);
            }
            reducedValues.add(rexBuilder.makeNullLiteral(sqlTypeName));
            continue;
        }
        Function<ValueHolder, RexNode> literator = new Function<ValueHolder, RexNode>() {

            @Override
            public RexNode apply(ValueHolder output) {
                switch(materializedExpr.getMajorType().getMinorType()) {
                    case INT:
                        {
                            int value = (materializedExpr.getMajorType().getMode() == TypeProtos.DataMode.OPTIONAL) ? ((NullableIntHolder) output).value : ((IntHolder) output).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) output).value : ((BigIntHolder) output).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) output).value : ((Float4Holder) output).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) output).value : ((Float8Holder) output).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) output) : StringFunctionHelpers.getStringFromVarCharHolder((VarCharHolder) output);
                            return rexBuilder.makeLiteral(value, TypeInferenceUtils.createCalciteTypeWithNullability(typeFactory, SqlTypeName.VARCHAR, newCall.getType().isNullable()), false);
                        }
                    case BIT:
                        {
                            boolean value = (materializedExpr.getMajorType().getMode() == TypeProtos.DataMode.OPTIONAL) ? ((NullableBitHolder) output).value == 1 : ((BitHolder) output).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) output).value, DateTimeZone.UTC).toCalendar(null) : new DateTime(((DateHolder) output).value, DateTimeZone.UTC).toCalendar(null);
                            return rexBuilder.makeLiteral(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) output;
                                value = decimal9Out.value;
                                scale = decimal9Out.scale;
                            } else {
                                Decimal9Holder decimal9Out = (Decimal9Holder) output;
                                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) output;
                                value = decimal18Out.value;
                                scale = decimal18Out.scale;
                            } else {
                                Decimal18Holder decimal18Out = (Decimal18Holder) output;
                                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 DECIMAL28SPARSE:
                        {
                            DrillBuf buffer;
                            int start;
                            int scale;
                            if (materializedExpr.getMajorType().getMode() == TypeProtos.DataMode.OPTIONAL) {
                                NullableDecimal28SparseHolder decimal28Out = (NullableDecimal28SparseHolder) output;
                                buffer = decimal28Out.buffer;
                                start = decimal28Out.start;
                                scale = decimal28Out.scale;
                            } else {
                                Decimal28SparseHolder decimal28Out = (Decimal28SparseHolder) output;
                                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) output;
                                buffer = decimal38Out.buffer;
                                start = decimal38Out.start;
                                scale = decimal38Out.scale;
                            } else {
                                Decimal38SparseHolder decimal38Out = (Decimal38SparseHolder) output;
                                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) output).value, DateTimeZone.UTC).toCalendar(null) : new DateTime(((TimeHolder) output).value, DateTimeZone.UTC).toCalendar(null);
                            return rexBuilder.makeLiteral(value, TypeInferenceUtils.createCalciteTypeWithNullability(typeFactory, SqlTypeName.TIME, newCall.getType().isNullable()), false);
                        }
                    case TIMESTAMP:
                        {
                            Calendar value = (materializedExpr.getMajorType().getMode() == TypeProtos.DataMode.OPTIONAL) ? new DateTime(((NullableTimeStampHolder) output).value, DateTimeZone.UTC).toCalendar(null) : new DateTime(((TimeStampHolder) output).value, DateTimeZone.UTC).toCalendar(null);
                            return rexBuilder.makeLiteral(value, TypeInferenceUtils.createCalciteTypeWithNullability(typeFactory, SqlTypeName.TIMESTAMP, newCall.getType().isNullable()), false);
                        }
                    case INTERVALYEAR:
                        {
                            BigDecimal value = (materializedExpr.getMajorType().getMode() == TypeProtos.DataMode.OPTIONAL) ? new BigDecimal(((NullableIntervalYearHolder) output).value) : new BigDecimal(((IntervalYearHolder) output).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) output;
                                days = intervalDayOut.days;
                                milliseconds = intervalDayOut.milliseconds;
                            } else {
                                IntervalDayHolder intervalDayOut = (IntervalDayHolder) output;
                                days = intervalDayOut.days;
                                milliseconds = intervalDayOut.milliseconds;
                            }
                            return rexBuilder.makeLiteral(new BigDecimal(days * DateUtility.daysToStandardMillis + milliseconds), TypeInferenceUtils.createCalciteTypeWithNullability(typeFactory, SqlTypeName.INTERVAL_DAY_TIME, 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));
    }
}