Examples with IntervalYearMonthType io.prestosql.type.IntervalYearMonthType used on opensource projects

Example 1 with IntervalYearMonthType

use of io.prestosql.type.IntervalYearMonthType 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();
}