Batch Upsert functionality

General
1

Hi Weaviate Team,

A common use case for our team is inserting and updating many documents (>1K) simultaneously. I wanted to know if batch upsert functionality is offered on Weaviate or if another efficient method exists. Thank you,

2

hi @JK_Rider !!

You can do upserts using batch.

For that you need to use deterministic ids. You can generate those UUIDs from one of your ids. We have some examples here:

Here is a simple example:

import weaviate
client = weaviate.connect_to_local()
from weaviate.classes.query import Filter
from weaviate.util import generate_uuid5

client.collections.delete("Test")
collection = client.collections.create(name="Test")

objects = [
    {"reference_id": 1, "content": "this is a first content"},
    {"reference_id": 2, "content": "this is a second content"}
]

with collection.batch.dynamic() as batch:
    for data_row in objects:
        batch.add_object(
            properties=data_row,
            uuid=generate_uuid5(data_row.get("reference_id"))
        )
for o in collection.query.fetch_objects().objects:
    print(o.properties)

this will output

{‘reference_id’: 2.0, ‘content’: ‘this is a second content’}
{‘reference_id’: 1.0, ‘content’: ‘this is a first content’}

now we upsert

objects = [
    {"reference_id": 1, "content": "this is NEW a first content"},
    {"reference_id": 3, "content": "this is a third content"}
]

with collection.batch.dynamic() as batch:
    for data_row in objects:
        batch.add_object(
            properties=data_row,
            uuid=generate_uuid5(data_row.get("reference_id"))
        )

for o in collection.query.fetch_objects().objects:
    print(o.properties)

will output:

{‘content’: ‘this is a second content’, ‘reference_id’: 2.0}
{‘reference_id’: 3.0, ‘content’: ‘this is a third content’}
{‘reference_id’: 1.0, ‘content’: ‘this is NEW a first content’}

Let me know if this helps!

Thanks!

3

Awesome, @DudaNogueira, I wasn’t sure if that automatically updated or if it would error. Thanks, for the confirmation. :slight_smile:

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