ArcticDB is a high performance, serverless DataFrame database built for the Python Data Science ecosystem. - leonardocgarcia/ArcticDB
而 Value 是类似Columar Store的东西，一般来说是Pandas DataFrame（当然，他也会 pickle 一些 Python ...
If pickled in python 3, unpack msgpack with raw=False, pickle.loads with encoding="bytes". Where raw means: """ :param bool raw: If true, unpack msgpack raw to Python bytes. Otherwise, unpack to Python str by decoding with UTF-8 encoding (default). """ poodlewars mentioned this pul...
{ "_id" : ObjectId("4c637f79900f00000000686d"), "uid" : 1, "username" : "admin", "password" : "admin" } //这是mongo的shell,如果用的是服务器端程序java php python,可以自己对这些操作封装一下,只用传几个参数就可以返回自增的id,还可以实现像Oracle的跨表的自增id。 //自己写了一段php...
*自动处理碎片,以支持云计算层次的扩展性. *支持Python,PHP,Ruby,Java,C,C++,C#,Javascript,Perl等语言的驱动程序,社区中也提供了对Erlang及.NET等平台的驱动程序. *文件存储格式为BSON(一种JSON的扩展). *可通过网络访问. 2.功能: *面向集合的存储:适合存储对象及JSON形式的数据. ...
它是一个稍微高级一点的 Key - Value Store。Key 就是一个 str，文档里面叫 symbol。而 Value 是类似 Columar Store 的东西，一般来说是 Pandas DataFrame（当然，他也会 pickle 一些 Python 原生的对象）。为啥说他高级呢？首先
python/arcticdb/version_store/_normalization.py Outdated @@ -78,6 +79,9 @@ def check_is_utc_if_newer_pandas(*args, **kwargs): NormalizedInput = NamedTuple("NormalizedInput", [("item", NPDDataFrame), ("metadata", NormalizationMetadata)]) PICKLED_METADATA_LOGLEVEL = LogLevel.DEBUG if...
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LGTM. What do you think about adding some correctness python tests like the ones you performed in the benchmarking commit? E.g. the NumSegmentsLiveDuringCompaction=1 can live in our automated tests (probably with smaller segments and a smaller RowsPerSegment?) It would also be nice to someho...
- ARCTICDB_RAND_SEED=$RANDOM pytest python/tests --verbose -n 2 --reruns 5 --reruns-delay 1 -k "not Azure and not azurite and not test_lmdb_warnings_when_reopened" # - `test_lmdb_warnings_when_reopened` and `test_force_compact_symbol_list_lock_held_past_ttl` also currently fail. ...