Examples with TIMESTAMP_MILLIS io.trino.spi.type.TimestampType.TIMESTAMP_MILLIS used on opensource projects

Example 6 with TIMESTAMP_MILLIS

use of io.trino.spi.type.TimestampType.TIMESTAMP_MILLIS in project trino by trinodb.

the class RaptorStorageManager method toOrcFileType.

static Type toOrcFileType(Type raptorType, TypeManager typeManager) {
    // TIMESTAMPS are stored as BIGINT to void the poor encoding in ORC
    if (raptorType.equals(TIMESTAMP_MILLIS)) {
        return BIGINT;
    }
    if (raptorType instanceof ArrayType) {
        Type elementType = toOrcFileType(((ArrayType) raptorType).getElementType(), typeManager);
        return new ArrayType(elementType);
    }
    if (raptorType instanceof MapType) {
        TypeSignature keyType = toOrcFileType(((MapType) raptorType).getKeyType(), typeManager).getTypeSignature();
        TypeSignature valueType = toOrcFileType(((MapType) raptorType).getValueType(), typeManager).getTypeSignature();
        return typeManager.getParameterizedType(StandardTypes.MAP, ImmutableList.of(TypeSignatureParameter.typeParameter(keyType), TypeSignatureParameter.typeParameter(valueType)));
    }
    if (raptorType instanceof RowType) {
        List<Field> fields = ((RowType) raptorType).getFields().stream().map(field -> new Field(field.getName(), toOrcFileType(field.getType(), typeManager))).collect(toImmutableList());
        return RowType.from(fields);
    }
    return raptorType;
}

Example 7 with TIMESTAMP_MILLIS

use of io.trino.spi.type.TimestampType.TIMESTAMP_MILLIS in project trino by trinodb.

the class OracleClient method toColumnMapping.

@Override
public Optional<ColumnMapping> toColumnMapping(ConnectorSession session, Connection connection, JdbcTypeHandle typeHandle) {
    String jdbcTypeName = typeHandle.getJdbcTypeName().orElseThrow(() -> new TrinoException(JDBC_ERROR, "Type name is missing: " + typeHandle));
    Optional<ColumnMapping> mappingToVarchar = getForcedMappingToVarchar(typeHandle);
    if (mappingToVarchar.isPresent()) {
        return mappingToVarchar;
    }
    if (jdbcTypeName.equalsIgnoreCase("date")) {
        return Optional.of(ColumnMapping.longMapping(TIMESTAMP_SECONDS, oracleTimestampReadFunction(), trinoTimestampToOracleDateWriteFunction(), FULL_PUSHDOWN));
    }
    switch(typeHandle.getJdbcType()) {
        case Types.SMALLINT:
            return Optional.of(ColumnMapping.longMapping(SMALLINT, ResultSet::getShort, smallintWriteFunction(), FULL_PUSHDOWN));
        case OracleTypes.BINARY_FLOAT:
            return Optional.of(ColumnMapping.longMapping(REAL, (resultSet, columnIndex) -> floatToRawIntBits(resultSet.getFloat(columnIndex)), oracleRealWriteFunction(), FULL_PUSHDOWN));
        case OracleTypes.BINARY_DOUBLE:
        case OracleTypes.FLOAT:
            return Optional.of(ColumnMapping.doubleMapping(DOUBLE, ResultSet::getDouble, oracleDoubleWriteFunction(), FULL_PUSHDOWN));
        case OracleTypes.NUMBER:
            int actualPrecision = typeHandle.getRequiredColumnSize();
            int decimalDigits = typeHandle.getRequiredDecimalDigits();
            // Map negative scale to decimal(p+s, 0).
            int precision = actualPrecision + max(-decimalDigits, 0);
            int scale = max(decimalDigits, 0);
            Optional<Integer> numberDefaultScale = getNumberDefaultScale(session);
            RoundingMode roundingMode = getNumberRoundingMode(session);
            if (precision < scale) {
                if (roundingMode == RoundingMode.UNNECESSARY) {
                    break;
                }
                scale = min(Decimals.MAX_PRECISION, scale);
                precision = scale;
            } else if (numberDefaultScale.isPresent() && precision == PRECISION_OF_UNSPECIFIED_NUMBER) {
                precision = Decimals.MAX_PRECISION;
                scale = numberDefaultScale.get();
            } else if (precision > Decimals.MAX_PRECISION || actualPrecision <= 0) {
                break;
            }
            DecimalType decimalType = createDecimalType(precision, scale);
            // JDBC driver can return BigDecimal with lower scale than column's scale when there are trailing zeroes
            if (decimalType.isShort()) {
                return Optional.of(ColumnMapping.longMapping(decimalType, shortDecimalReadFunction(decimalType, roundingMode), shortDecimalWriteFunction(decimalType), FULL_PUSHDOWN));
            }
            return Optional.of(ColumnMapping.objectMapping(decimalType, longDecimalReadFunction(decimalType, roundingMode), longDecimalWriteFunction(decimalType), FULL_PUSHDOWN));
        case OracleTypes.CHAR:
        case OracleTypes.NCHAR:
            CharType charType = createCharType(typeHandle.getRequiredColumnSize());
            return Optional.of(ColumnMapping.sliceMapping(charType, charReadFunction(charType), oracleCharWriteFunction(), FULL_PUSHDOWN));
        case OracleTypes.VARCHAR:
        case OracleTypes.NVARCHAR:
            return Optional.of(ColumnMapping.sliceMapping(createVarcharType(typeHandle.getRequiredColumnSize()), (varcharResultSet, varcharColumnIndex) -> utf8Slice(varcharResultSet.getString(varcharColumnIndex)), varcharWriteFunction(), FULL_PUSHDOWN));
        case OracleTypes.CLOB:
        case OracleTypes.NCLOB:
            return Optional.of(ColumnMapping.sliceMapping(createUnboundedVarcharType(), (resultSet, columnIndex) -> utf8Slice(resultSet.getString(columnIndex)), varcharWriteFunction(), DISABLE_PUSHDOWN));
        // Oracle's RAW(n)
        case OracleTypes.VARBINARY:
        case OracleTypes.BLOB:
            return Optional.of(ColumnMapping.sliceMapping(VARBINARY, (resultSet, columnIndex) -> wrappedBuffer(resultSet.getBytes(columnIndex)), varbinaryWriteFunction(), DISABLE_PUSHDOWN));
        case OracleTypes.TIMESTAMP:
            return Optional.of(ColumnMapping.longMapping(TIMESTAMP_MILLIS, oracleTimestampReadFunction(), trinoTimestampToOracleTimestampWriteFunction(), FULL_PUSHDOWN));
        case OracleTypes.TIMESTAMPTZ:
            return Optional.of(oracleTimestampWithTimeZoneColumnMapping());
    }
    if (getUnsupportedTypeHandling(session) == CONVERT_TO_VARCHAR) {
        return mapToUnboundedVarchar(typeHandle);
    }
    return Optional.empty();
}