need grammatical change to install part

All the cases below are in the /tests20/python_client/testcases/test_collection.py

1. test_collection_empty_name

error = {ct.err_code: 1, ct.err_msg: f'`collection_name` value is illegal'}
<function api_request at 0x7f536a17bd30>: `collection_name` value  is illegal 

2. test_collection_illegal_name

error = {ct.err_code: 1, ct.err_msg: "`collection_name` value {} is illegal".format(name)}
<function api_request at 0x7f5d60506d30>: `collection_name` value 1 is illegal

3. test_collection_invalid_type_field

<function api_request at 0x7f675fc08d30>: (1,) has type tuple, but expected one of: bytes, unicode

4. test_collection_none_field_name

<function api_request at 0x7fb552657d30>: You should specify the name of field! 

5. test_collection_field_dtype_float_value

error = {ct.err_code: 0, ct.err_msg: "Field type must be of DataType!"}
<function api_request at 0x7fa2a1f15e50>: Field type must be of DataType!

6. test_collection_vector_invalid_dim

<function api_request at 0x7f62228f0d30>: invalid dim: []

7. test_collection_none_desc

<function api_request at 0x7f9272a7dd30>: None has type NoneType, but expected one of: bytes, unicode

Attempting to conduct a search using data of type "pandas.core.frame.DataFrame" or "numpy.ndarray" will result in a ParamError.

Example error:

ParamError: `search_data` value                                           embeddings
0  [189, 20, 1, 10, 33, 183, 99, 9, 159, 60, 50, ...
1  [179, 89, 169, 164, 101, 99, 24, 139, 182, 83,... is illegal

Searching with a dataframe works fine in version 2.0.0rc1, but errors as described above in version 2.0.0rc4.

I installed the Milvus cluster on my local machine (ubuntu 20.04) by simply following this step: https://milvus.io/docs/v2.0.0/install_cluster-docker.md

Then I installed pymilvus-orm using pip install pymilvus-orm==2.0.0rc1

I tried to run it (using Python3), but it fails at # create connection connections.connect() with error:

Traceback (most recent call last): File "hello_milvus.py", line 74, in <module> hello_milvus() File "hello_milvus.py", line 19, in hello_milvus connections.connect(alias="default", host="localhost", port="19530") File "/home/jp/.local/lib/python3.8/site-packages/pymilvus_orm/connections.py", line 158, in connect conn = connect_milvus(**kwargs) File "/home/jp/.local/lib/python3.8/site-packages/pymilvus_orm/connections.py", line 148, in connect_milvus return Milvus(tmp_host, tmp_port, handler, pool, **tmp_kwargs) File "/home/jp/.local/lib/python3.8/site-packages/pymilvus/client/stub.py", line 122, in __init__ self._update_connection_pool() File "/home/jp/.local/lib/python3.8/site-packages/pymilvus/client/stub.py", line 175, in _update_connection_pool self._wait_for_healthy() File "/home/jp/.local/lib/python3.8/site-packages/pymilvus/client/stub.py", line 40, in inner return func(self, *args, **kwargs) File "/home/jp/.local/lib/python3.8/site-packages/pymilvus/client/stub.py", line 148, in _wait_for_healthy raise Exception("server is not healthy, please try again later") Exception: server is not healthy, please try again later

The same steps with standalone milvus works fine though.

check the info here:
milvus-io/web-content#614 (comment)

Env:
Python 3.7.10, pymilvus-orm==2.0.0rc4

Description:

When I create a collection with schema which has DataType.INT16 field, it would fail if I try to insert int data.

If I change the DataType from INT16 to INT64, it work well.
It just failed when I set INT16 or INT32(not test for any other types).

Code below is my example:
Fields those would fail are color and brand.

>>> from pymilvus_orm import connections, Collection, FieldSchema, CollectionSchema, DataType
>>> import random
>>> connections.connect()
<pymilvus.client.stub.Milvus object at 0x10b39aa90>
>>> schema = CollectionSchema([
...     FieldSchema("id", DataType.INT64, is_primary=True),
...     FieldSchema("vector", dtype=DataType.FLOAT_VECTOR, dim=128),
...     FieldSchema("color", DataType.INT16),
...     FieldSchema("brand", DataType.INT16),
... ], auto_id=True)
>>> collection = Collection("car_test", schema)
>>> data = [
...     [[random.random() for _ in range(128)] for _ in range(10)],
...     [i for i in range(10)],
...     [i for i in range(10)],
... ]
>>> collection.insert(data)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/Users/czhen/Desktop/milvus_cli/venv/lib/python3.7/site-packages/pymilvus_orm/collection.py", line 514, in insert
    raise SchemaNotReadyException(0, ExceptionsMessage.TypeOfDataAndSchemaInconsistent)
pymilvus_orm.exceptions.SchemaNotReadyException: <SchemaNotReadyException: (code=0, message=The types of schema and data do not match.)>

Milvus 2.0 pymilvus orm documentation is missing the flush API, need relevant interface information

Implement calc_distance() in pymilvus_orm.
The prototype of this api in pymilvus is:

    def calc_distance(self, vectors_left, vectors_right, params=None, timeout=None, **kwargs):
        """
        Calculate distance between two vector arrays.

        :param vectors_left: The vectors on the left of operator.
        :type  vectors_left: dict
        `{"ids": [1, 2, 3, .... n], "collection": "c_1", "partition": "p_1", "field": "v_1"}`
        or
        `{"float_vectors": [[1.0, 2.0], [3.0, 4.0], ... [9.0, 10.0]]}`
        or
        `{"bin_vectors": [b'\x94', b'N', ... b'\xca']}`

        :param vectors_right: The vectors on the right of operator.
        :type  vectors_right: dict
        `{"ids": [1, 2, 3, .... n], "collection": "col_1", "partition": "p_1", "field": "v_1"}`
        or
        `{"float_vectors": [[1.0, 2.0], [3.0, 4.0], ... [9.0, 10.0]]}`
        or
        `{"bin_vectors": [b'\x94', b'N', ... b'\xca']}`

        :param params: parameters, currently only support "metric_type", default value is "L2"
                       extra parameter for "L2" distance: "sqrt", true or false, default is false
                       extra parameter for "HAMMING" and "TANIMOTO": "dim", set this value if dimension is not a multiple of 8, otherwise the dimension will be calculted by list length
        :type  params: dict
            There are examples of supported metric_type:
                `{"metric": "L2"}`
                `{"metric": "IP"}`
                `{"metric": "HAMMING"}`
                `{"metric": "TANIMOTO"}`
            Note: "L2", "IP", "HAMMING", "TANIMOTO" are case insensitive

        :return: 2-d array distances
        :rtype: list[list[int]] for "HAMMING" or list[list[float]] for others
            Assume the vectors_left: L_1, L_2, L_3
            Assume the vectors_right: R_a, R_b
            Distance between L_n and R_m we called "D_n_m"
            The returned distances are arranged like this:
              [D_1_a, D_1_b, D_2_a, D_2_b, D_3_a, D_3_b]

        """

There is a lack of query examples in the API documentation, hopefully they can be examples of querying vectors based on ids
https://pymilvus-orm.readthedocs.io/en/latest/api/collection.html?highlight=query#pymilvus_orm.Collection.query

When running the example.py, I got the below error.

Traceback (most recent call last):
File "milvus_example.py", line 111, in
results = utility.calc_distance(vectors_left=op_l, vectors_right=op_r, params=params)
AttributeError: module 'pymilvus_orm.utility' has no attribute 'calc_distance'

Installing pymilvus-orm rc3 gives an installation version error
https://github.com/milvus-io/pymilvus-orm

doc vs code
They are not identical.

milvus和pymilvus-orm版本都是v2.0.0-rc2，create index也会如此，不明白为啥

As the picture presented, insert returns a pymilvus_orm.search.xxx, it's very much misleading

people are asking in slack and wechat about how to get an existing collection by pymilvus_orm?
so we need an example in examples, turoial and api doc.
c = Collection(existing_collection_name)

>>> collection.create_partition("comedy", description="comedy films")
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/home/yangxuan/Github/pymilvus-orm/pymilvus_orm/collection.py", line 763, in create_partition
    raise PartitionAlreadyExistException(0, ExceptionsMessage.PartitionAlreayExist)
AttributeError: type object 'ExceptionsMessage' has no attribute 'PartitionAlreayExist'

pymilvus-orm == 2.0a1.dev59

As the official documentation says, in version v.1.1.1 it is possible to delete entities by ids with Milvus.delete_entity_by_id method. Can I delete entities in 2.0.0 version somehow?

issue from slack channel

>>> results = collection.search(vectors[:5], field_name, param=search_params, limit=10, expr=None)
>>> results[0].ids
[424363819726212428, 424363819726212436, ...]
>>> results[0].distances
[0.0, 1.0862197875976562, 1.1029295921325684, ...]

I wonder why pymilvus returns data like this. As an application developer, this data structure is not very easy to use. especially if we are going to add more data type in Milvus
Can we just output something like this?

[
    {
        'id': 424363819726212428,
        'field': field-value,
        'distance': 0
    },
    {
        'id': 424363819726212428,
        'field': field-value,
        'distance': 1
     },
     ...
]

>>> collection.create_partition("comedy", description="comedy films")
{"name": "comedy", "description": "comedy films", "num_entities": 0}
>>> collection.partition("comedy")
{"name": "comedy", "description": "", "num_entities": 0}

The code explains itself.

I set a FieldScheme with dtype=DataType.STRING. i got exception When i insert data as string type. Anyone could help me ? Thanks
File "engine.py", line 55, in insert self.collection.insert(data=data) File "/usr/local/lib/python3.8/site-packages/pymilvus_orm/collection.py", line 517, in insert res = conn.insert(collection_name=self._name, entities=entities, ids=None, File "/usr/local/lib/python3.8/site-packages/pymilvus/client/stub.py", line 63, in handler raise e File "/usr/local/lib/python3.8/site-packages/pymilvus/client/stub.py", line 51, in handler return func(self, *args, **kwargs) File "/usr/local/lib/python3.8/site-packages/pymilvus/client/stub.py", line 40, in inner return func(self, *args, **kwargs) File "/usr/local/lib/python3.8/site-packages/pymilvus/client/stub.py", line 852, in insert return handler.bulk_insert(collection_name, entities, partition_name, timeout, **kwargs) File "/usr/local/lib/python3.8/site-packages/pymilvus/client/grpc_handler.py", line 80, in handler raise e File "/usr/local/lib/python3.8/site-packages/pymilvus/client/grpc_handler.py", line 57, in handler return func(self, *args, **kwargs) File "/usr/local/lib/python3.8/site-packages/pymilvus/client/grpc_handler.py", line 539, in bulk_insert raise err File "/usr/local/lib/python3.8/site-packages/pymilvus/client/grpc_handler.py", line 525, in bulk_insert request = self._prepare_bulk_insert_request(collection_name, entities, partition_name, timeout, **kwargs) File "/usr/local/lib/python3.8/site-packages/pymilvus/client/grpc_handler.py", line 518, in _prepare_bulk_insert_request else Prepare.bulk_insert_param(collection_name, entities, partition_name, fields_info) File "/usr/local/lib/python3.8/site-packages/pymilvus/client/prepare.py", line 333, in bulk_insert_param raise ParamError("UnSupported data type") pymilvus.client.exceptions.ParamError: UnSupported data type

A lot of the collection based index functions deal with only one index but it is possible for the collection to have more than one index. How are we supposed to specify which index to drop when using drop_index() or which index is returned on index()

Expose timeout parameter for all api in pymilvus-orm, such as load, releaase.