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Clickhouset通过JDBC直接查询Bitmap

Clickhouset通过JDBC直接查询Bitmap

作者: 和平菌 | 来源:发表于2021-08-11 17:49 被阅读0次
    ClickHouseStatement statement = null;
                try {
                    statement = connection.createStatement();
                    ClickHouseRowBinaryInputStream in = statement.executeQueryClickhouseRowBinaryStream(sql);
                    ClickHouseBitmap bit = in.readBitmap(ClickHouseDataType.UInt64);
                    Roaring64NavigableMap obj = (Roaring64NavigableMap) bit.unwrap();
                    return new ExtRoaringBitmap(obj);
                } catch (Exception e) {
                    log.error("查询位图错误 [ip:{}][sql:{}]", ip, sql, e);
                    throw e;
                } finally {
                    DbUtils.close(statement);
                }
    

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