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opensearch-pyd/samples/knn/knn-boolean-filter.py
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Daniel (dB.) DoubrovkineandGitHub bcfef113c4 Added samples, benchmarks and docs for nox format. (#556)
* Added samples for nox format.

Signed-off-by: dblock <[email protected]>

* Added space after #!/usr/bin/env python.

Signed-off-by: dblock <[email protected]>

* Added benchmarks and docs.

Signed-off-by: dblock <[email protected]>

---------

Signed-off-by: dblock <[email protected]>
2023-10-26 19:55:50 -07:00

93 lines
2.1 KiB
Python
Executable File

#!/usr/bin/env python
# -*- coding: utf-8 -*-
# SPDX-License-Identifier: Apache-2.0
#
# The OpenSearch Contributors require contributions made to
# this file be licensed under the Apache-2.0 license or a
# compatible open source license.
#
# Modifications Copyright OpenSearch Contributors. See
# GitHub history for details.
import os
import random
from opensearchpy import OpenSearch, helpers
# connect to an instance of OpenSearch
host = os.getenv("HOST", default="localhost")
port = int(os.getenv("PORT", 9200))
auth = (os.getenv("USERNAME", "admin"), os.getenv("PASSWORD", "admin"))
client = OpenSearch(
hosts=[{"host": host, "port": port}],
http_auth=auth,
use_ssl=True,
verify_certs=False,
ssl_show_warn=False,
)
# check whether an index exists
index_name = "my-index"
dimensions = 5
if not client.indices.exists(index_name):
client.indices.create(
index_name,
body={
"settings": {"index.knn": True},
"mappings": {
"properties": {
"values": {"type": "knn_vector", "dimension": dimensions},
}
},
},
)
# index data
vectors = []
genres = ["fiction", "drama", "romance"]
for i in range(3000):
vec = []
for j in range(dimensions):
vec.append(round(random.uniform(0, 1), 2))
vectors.append(
{
"_index": index_name,
"_id": i,
"values": vec,
"metadata": {"genre": random.choice(genres)},
}
)
# bulk index
helpers.bulk(client, vectors)
client.indices.refresh(index=index_name)
# search
genre = random.choice(genres)
vec = []
for j in range(dimensions):
vec.append(round(random.uniform(0, 1), 2))
print(f"Searching for {vec} with the '{genre}' genre ...")
search_query = {
"query": {
"bool": {
"filter": {"bool": {"must": [{"term": {"metadata.genre": genre}}]}},
"must": {"knn": {"values": {"vector": vec, "k": 5}}},
}
}
}
results = client.search(index=index_name, body=search_query)
for hit in results["hits"]["hits"]:
print(hit)
# delete index
client.indices.delete(index=index_name)