Examples with SqlType io.prestosql.spi.function.SqlType used on opensource projects

Example 21 with SqlType

use of io.prestosql.spi.function.SqlType in project hetu-core by openlookeng.

the class JsonOperators method castToVarchar.

@ScalarOperator(CAST)
@SqlNullable
@LiteralParameters("x")
@SqlType("varchar(x)")
public static Slice castToVarchar(@SqlType(JSON) Slice json) {
    try (JsonParser parser = createJsonParser(JSON_FACTORY, json)) {
        parser.nextToken();
        Slice result = currentTokenAsVarchar(parser);
        // check no trailing token
        checkCondition(parser.nextToken() == null, INVALID_CAST_ARGUMENT, "Cannot cast input json to VARCHAR");
        return result;
    } catch (IOException | JsonCastException e) {
        throw new PrestoException(INVALID_CAST_ARGUMENT, String.format("Cannot cast '%s' to %s", json.toStringUtf8(), VARCHAR), e);
    }
}

Example 22 with SqlType

use of io.prestosql.spi.function.SqlType in project hetu-core by openlookeng.

the class JsonOperators method castToBigint.

@ScalarOperator(CAST)
@SqlNullable
@SqlType(BIGINT)
public static Long castToBigint(@SqlType(JSON) Slice json) {
    try (JsonParser parser = createJsonParser(JSON_FACTORY, json)) {
        parser.nextToken();
        Long result = currentTokenAsBigint(parser);
        // check no trailing token
        checkCondition(parser.nextToken() == null, INVALID_CAST_ARGUMENT, "Cannot cast input json to BIGINT");
        return result;
    } catch (IOException | JsonCastException e) {
        throw new PrestoException(INVALID_CAST_ARGUMENT, String.format("Cannot cast '%s' to %s", json.toStringUtf8(), BIGINT), e);
    }
}

Example 23 with SqlType

use of io.prestosql.spi.function.SqlType in project hetu-core by openlookeng.

the class JsonOperators method castToTinyint.

@ScalarOperator(CAST)
@SqlNullable
@SqlType(TINYINT)
public static Long castToTinyint(@SqlType(JSON) Slice json) {
    try (JsonParser parser = createJsonParser(JSON_FACTORY, json)) {
        parser.nextToken();
        Long result = currentTokenAsTinyint(parser);
        // check no trailing token
        checkCondition(parser.nextToken() == null, INVALID_CAST_ARGUMENT, "Cannot cast input json to TINYINT");
        return result;
    } catch (PrestoException e) {
        if (e.getErrorCode().equals(NUMERIC_VALUE_OUT_OF_RANGE.toErrorCode())) {
            throw new PrestoException(INVALID_CAST_ARGUMENT, String.format("Cannot cast '%s' to %s", json.toStringUtf8(), INTEGER), e.getCause());
        }
        throw e;
    } catch (IllegalArgumentException | IOException | JsonCastException e) {
        throw new PrestoException(INVALID_CAST_ARGUMENT, String.format("Cannot cast '%s' to %s", json.toStringUtf8(), TINYINT), e);
    }
}

Example 24 with SqlType

use of io.prestosql.spi.function.SqlType in project hetu-core by openlookeng.

the class TimestampWithTimeZoneOperators method castToTimeWithTimeZone.

@ScalarOperator(CAST)
@SqlType(StandardTypes.TIME_WITH_TIME_ZONE)
public static long castToTimeWithTimeZone(@SqlType(StandardTypes.TIMESTAMP_WITH_TIME_ZONE) long value) {
    long millis = modulo24Hour(castToTimestamp(value));
    ISOChronology localChronology = unpackChronology(value);
    // This is done due to inadequate TIME WITH TIME ZONE representation.
    return packDateTimeWithZone(millis - localChronology.getZone().getOffset(millis), unpackZoneKey(value));
}

Example 25 with SqlType

use of io.prestosql.spi.function.SqlType in project hetu-core by openlookeng.

the class TimestampWithTimeZoneOperators method castToDate.

@ScalarFunction("date")
@ScalarOperator(CAST)
@SqlType(StandardTypes.DATE)
public static long castToDate(@SqlType(StandardTypes.TIMESTAMP_WITH_TIME_ZONE) long value) {
    // round down the current timestamp to days
    ISOChronology chronology = unpackChronology(value);
    long date = chronology.dayOfYear().roundFloor(unpackMillisUtc(value));
    // date is currently midnight in timezone of the original value
    // convert to UTC
    long millis = date + chronology.getZone().getOffset(date);
    return TimeUnit.MILLISECONDS.toDays(millis);
}