Examples with DoubleType io.prestosql.spi.type.DoubleType used on opensource projects

Example 1 with DoubleType

use of io.prestosql.spi.type.DoubleType in project hetu-core by openlookeng.

the class MySqlRowExpressionConverter method visitCall.

@Override
public String visitCall(CallExpression call, JdbcConverterContext context) {
    // remote udf verify
    FunctionHandle functionHandle = call.getFunctionHandle();
    if (!isDefaultFunction(call)) {
        Optional<String> result = mySqlApplyRemoteFunctionPushDown.rewriteRemoteFunction(call, this, context);
        if (result.isPresent()) {
            return result.get();
        }
        throw new PrestoException(NOT_SUPPORTED, String.format("MySql connector does not support remote function: %s.%s", call.getDisplayName(), call.getFunctionHandle().getFunctionNamespace()));
    }
    if (standardFunctionResolution.isArrayConstructor(functionHandle)) {
        throw new PrestoException(NOT_SUPPORTED, "MySql connector does not support array constructor");
    }
    if (standardFunctionResolution.isSubscriptFunction(functionHandle)) {
        throw new PrestoException(NOT_SUPPORTED, "MySql connector does not support subscript expression");
    }
    if (standardFunctionResolution.isCastFunction(functionHandle)) {
        // deal with literal, when generic literal expression translate to rowExpression, it will be
        // translated to a 'CAST' rowExpression with a varchar type 'CONSTANT' rowExpression, in some
        // case, 'CAST' is superfluous
        RowExpression argument = call.getArguments().get(0);
        Type type = call.getType();
        if (argument instanceof ConstantExpression && argument.getType().equals(VARCHAR)) {
            String value = argument.accept(this, context);
            if (type instanceof VarcharType || type instanceof CharType || type instanceof VarbinaryType || type instanceof DecimalType || type instanceof RealType || type instanceof DoubleType) {
                return value;
            }
        }
        if (call.getType().getDisplayName().equals(LIKE_PATTERN_NAME)) {
            return call.getArguments().get(0).accept(this, context);
        }
        return getCastExpression(call.getArguments().get(0).accept(this, context), call.getType());
    }
    return super.visitCall(call, context);
}

Example 2 with DoubleType

use of io.prestosql.spi.type.DoubleType in project hetu-core by openlookeng.

the class TypeUtils method getActualValue.

public static Object getActualValue(Type type, Object value) {
    if (type instanceof BigintType || type instanceof TinyintType || type instanceof SmallintType || type instanceof IntegerType) {
        return value;
    } else if (type instanceof BooleanType) {
        return value;
    } else if (type instanceof DoubleType) {
        return value;
    } else if (type instanceof DateType) {
        // keep the `long` representation of date
        return value;
    } else if (type instanceof RealType) {
        Long number = (Long) value;
        return intBitsToFloat(number.intValue());
    } else if (type instanceof VarcharType || type instanceof CharType) {
        if (value instanceof Slice) {
            return ((Slice) value).toStringUtf8();
        }
        return value;
    } else if (type instanceof DecimalType) {
        DecimalType decimalType = (DecimalType) type;
        if (decimalType.isShort()) {
            checkState(value instanceof Long);
            return new BigDecimal(BigInteger.valueOf((Long) value), decimalType.getScale(), new MathContext(decimalType.getPrecision()));
        }
        Slice slice;
        if (value instanceof String) {
            slice = Slices.utf8Slice((String) value);
        } else {
            checkState(value instanceof Slice);
            slice = (Slice) value;
        }
        return new BigDecimal(decodeUnscaledValue(slice), decimalType.getScale(), new MathContext(decimalType.getPrecision()));
    } else if (type instanceof TimestampType) {
        Long time = (Long) value;
        return new Timestamp(time);
    }
    throw new UnsupportedOperationException("Not Implemented Exception: " + value + "->" + type);
}

Example 3 with DoubleType

use of io.prestosql.spi.type.DoubleType in project hetu-core by openlookeng.

the class LiteralInterpreter method evaluate.

public static Object evaluate(ConstantExpression node) {
    Type type = node.getType();
    if (node.getValue() == null) {
        return null;
    }
    if (type instanceof BooleanType) {
        return node.getValue();
    }
    if (type instanceof BigintType || type instanceof TinyintType || type instanceof SmallintType || type instanceof IntegerType) {
        return node.getValue();
    }
    if (type instanceof DoubleType) {
        return node.getValue();
    }
    if (type instanceof RealType) {
        Long number = (Long) node.getValue();
        return intBitsToFloat(number.intValue());
    }
    if (type instanceof DecimalType) {
        DecimalType decimalType = (DecimalType) type;
        if (decimalType.isShort()) {
            checkState(node.getValue() instanceof Long);
            return decodeDecimal(BigInteger.valueOf((long) node.getValue()), decimalType);
        }
        checkState(node.getValue() instanceof Slice);
        Slice value = (Slice) node.getValue();
        return decodeDecimal(decodeUnscaledValue(value), decimalType);
    }
    if (type instanceof VarcharType || type instanceof CharType) {
        return (node.getValue() instanceof String) ? node.getValue() : ((Slice) node.getValue()).toStringUtf8();
    }
    if (type instanceof VarbinaryType) {
        return new SqlVarbinary(((Slice) node.getValue()).getBytes());
    }
    if (type instanceof DateType) {
        return new SqlDate(((Long) node.getValue()).intValue());
    }
    if (type instanceof TimeType) {
        return new SqlTime((long) node.getValue());
    }
    if (type instanceof TimestampType) {
        try {
            return new SqlTimestamp((long) node.getValue());
        } catch (RuntimeException e) {
            throw new PrestoException(GENERIC_USER_ERROR, format("'%s' is not a valid timestamp literal", (String) node.getValue()));
        }
    }
    if (type instanceof IntervalDayTimeType) {
        return new SqlIntervalDayTime((long) node.getValue());
    }
    if (type instanceof IntervalYearMonthType) {
        return new SqlIntervalYearMonth(((Long) node.getValue()).intValue());
    }
    if (type.getJavaType().equals(Slice.class)) {
        // DO NOT ever remove toBase64. Calling toString directly on Slice whose base is not byte[] will cause JVM to crash.
        return "'" + VarbinaryFunctions.toBase64((Slice) node.getValue()).toStringUtf8() + "'";
    }
    // We should not fail at the moment; just return the raw value (block, regex, etc) to the user
    return node.getValue();
}

Example 4 with DoubleType

use of io.prestosql.spi.type.DoubleType in project hetu-core by openlookeng.

the class BaseJdbcRowExpressionConverter method visitConstant.

@Override
public String visitConstant(ConstantExpression literal, JdbcConverterContext context) {
    Type type = literal.getType();
    if (literal.getValue() == null) {
        return "null";
    }
    if (type instanceof BooleanType) {
        return String.valueOf(((Boolean) literal.getValue()).booleanValue());
    }
    if (type instanceof BigintType || type instanceof TinyintType || type instanceof SmallintType || type instanceof IntegerType) {
        Number number = (Number) literal.getValue();
        return format("%d", number.longValue());
    }
    if (type instanceof DoubleType) {
        return literal.getValue().toString();
    }
    if (type instanceof RealType) {
        Long number = (Long) literal.getValue();
        return format("%f", intBitsToFloat(number.intValue()));
    }
    if (type instanceof DecimalType) {
        DecimalType decimalType = (DecimalType) type;
        if (decimalType.isShort()) {
            checkState(literal.getValue() instanceof Long);
            return decodeDecimal(BigInteger.valueOf((long) literal.getValue()), decimalType).toString();
        }
        checkState(literal.getValue() instanceof Slice);
        Slice value = (Slice) literal.getValue();
        return decodeDecimal(decodeUnscaledValue(value), decimalType).toString();
    }
    if (type instanceof VarcharType || type instanceof CharType) {
        return "'" + ((Slice) literal.getValue()).toStringUtf8() + "'";
    }
    if (type.equals(DATE)) {
        String date = printDate(Integer.parseInt(String.valueOf(literal.getValue())));
        return StandardTypes.DATE + " " + ExpressionFormatter.formatStringLiteral(date);
    }
    if (type instanceof TimestampType) {
        DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss.SSS");
        Long time = (Long) literal.getValue();
        return format("TIMESTAMP '%s'", formatter.format(Instant.ofEpochMilli(time).atZone(UTC).toLocalDateTime()));
    }
    throw new PrestoException(NOT_SUPPORTED, String.format("Cannot handle the constant expression %s with value of type %s", literal.getValue(), type));
}

Example 5 with DoubleType

use of io.prestosql.spi.type.DoubleType in project hetu-core by openlookeng.

the class OracleRowExpressionConverter method visitCall.

@Override
public String visitCall(CallExpression call, JdbcConverterContext context) {
    FunctionHandle functionHandle = call.getFunctionHandle();
    String functionName = functionMetadataManager.getFunctionMetadata(functionHandle).getName().getObjectName();
    if (timeExtractFields.contains(functionName)) {
        if (call.getArguments().size() == 1) {
            try {
                Time.ExtractField field = Time.ExtractField.valueOf(functionName.toUpperCase(ENGLISH));
                return format("EXTRACT(%s FROM %s)", field, call.getArguments().get(0).accept(this, context));
            } catch (IllegalArgumentException e) {
                throw new PrestoException(INVALID_FUNCTION_ARGUMENT, "Illegal argument: " + e);
            }
        } else {
            throw new PrestoException(INVALID_FUNCTION_ARGUMENT, "Illegal argument num of function " + functionName);
        }
    }
    if (functionName.equals(AT_TIMEZONE_FUNCTION_NAME)) {
        if (call.getArguments().size() == 2) {
            return format("%s AT TIME ZONE %s", call.getArguments().get(0).accept(this, context), call.getArguments().get(1).accept(this, context));
        } else {
            throw new PrestoException(INVALID_FUNCTION_ARGUMENT, "Illegal argument num of function " + functionName);
        }
    }
    if (standardFunctionResolution.isArrayConstructor(functionHandle)) {
        throw new PrestoException(NOT_SUPPORTED, "Oracle connector does not support array constructor");
    }
    if (standardFunctionResolution.isSubscriptFunction(functionHandle)) {
        throw new PrestoException(NOT_SUPPORTED, "Oracle connector does not support subscript expression");
    }
    if (standardFunctionResolution.isCastFunction(functionHandle)) {
        // deal with literal, when generic literal expression translate to rowExpression, it will be
        // translated to a 'CAST' rowExpression with a varchar type 'CONSTANT' rowExpression, in some
        // case, 'CAST' is superfluous
        RowExpression argument = call.getArguments().get(0);
        Type type = call.getType();
        if (argument instanceof ConstantExpression && argument.getType() instanceof VarcharType) {
            String value = argument.accept(this, context);
            if (type instanceof DateType) {
                return format("date %s", value);
            }
            if (type instanceof VarcharType || type instanceof CharType || type instanceof VarbinaryType || type instanceof DecimalType || type instanceof RealType || type instanceof DoubleType) {
                return value;
            }
        }
        if (call.getType().getDisplayName().equals(LIKE_PATTERN_NAME)) {
            return call.getArguments().get(0).accept(this, context);
        }
        return getCastExpression(call.getArguments().get(0).accept(this, context), call.getType());
    }
    return super.visitCall(call, context);
}