创建collection并执行向量搜索

原创

melodyshu

发布于 2024-04-02 11:17:29

1850

发布于 2024-04-02 11:17:29

文章被收录于专栏：milvus数据库milvus数据库

创建collection

collection属于某个db。

api参考docs:

https://milvus.io/docs

使用attu创建collection。

写入数据

使用pymilvus创建collection，并写入数据。

import uuid

import numpy as np
from pymilvus import (
    connections,
    FieldSchema, CollectionSchema, DataType,
    Collection,
)

collection_name = "hello_milvus"
host = "192.168.230.71"
port = 19530
username = ""
password = ""
num_entities, dim = 1000, 128
total_num = 3000

def generate_uuids(number_of_uuids):
    uuids = [str(uuid.uuid4()) for _ in range(number_of_uuids)]
    return uuids

print("start connecting to Milvus")
connections.connect("default", host=host, port=port,user=username,password=password)

fields = [
    FieldSchema(name="pk", dtype=DataType.INT64, is_primary=True, auto_id=False),
    FieldSchema(name="random", dtype=DataType.DOUBLE),
    FieldSchema(name="comment", dtype=DataType.VARCHAR, max_length=200),
    FieldSchema(name="embeddings", dtype=DataType.FLOAT_VECTOR, dim=dim)
]

schema = CollectionSchema(fields, "hello_milvus is the simplest demo to introduce the APIs")

print("Create collection `hello_world`")
coll = Collection(collection_name, schema, consistency_level="Bounded",shards_num=1)

print("Start inserting entities")
rng = np.random.default_rng(seed=19530)
entities = [
    [i for i in range(num_entities)],
    rng.random(num_entities).tolist(),
    generate_uuids(num_entities),
    rng.random((num_entities, dim)),
]
insert_result = coll.insert(entities)

print("Start flush")
coll.flush()

print("done")