Teradata Package for LangChain Function Reference - delete_embeddings - Teradata® Package for LangChain - Look here for syntax, methods and examples for the functions included in the Teradata langchain-teradata package.
Teradata® Package for LangChain Function Reference
- Deployment
- VantageCloud
- Edition
- Enterprise
- Product
- Teradata® Package for LangChain
- Release Number
- 20.00.00.01
- Published
- December 2025
- ft:locale
- en-US
- ft:lastEdition
- 2025-12-19
- dita:id
- Langchain-Teradata_FxRef_Lake
- Product Category
- Teradata Vantage
- libs.teradata.langchain_teradata.TeradataVectorStore.delete_embeddings = delete_embeddings(self, data, **kwargs)
- DESCRIPTION:
Deletes data from an existing embedding-based vector store.
PARAMETERS:
data:
Required Argument.
Specifies the name of the tables or teradataml DataFrames containing the embedding data
to be deleted from the Vector Store.
Types: str, DataFrame, or list of str/DataFrame
database_name:
Optional Argument.
Specifies the database name where the input table(s) or DataFrame(s) are located.
Note: If not specified, all input data with the table name of "data" is deleted
from the Vector Store irrespective of the database in which it is located.
Types: str
update_style:
Optional Argument.
Specifies the style to be used for alter operation of the data
from the vector store when "search_algorithm" is KMEANS/HNSW.
Default Value: MINOR
Permitted Values: MINOR, MAJOR
Types: str
RETURNS:
None
RAISES:
TeradataMlException
EXAMPLES:
# Create an instance of an 'embedding-based' vector store by passing the 'amazon_reviews_embedded' and
# 'amazon_reviews_embedded_10_alter' tables to "data" and "embedding" as 'data_columns'.
# Note:
# This is optional and can be skipped if the vector store is already created with the embedding data.
>>> from langchain_teradata import TeradataVectorStore
>>> from teradataml import DataFrame
>>> from teradatagenai import load_data
>>> load_data("amazon", "amazon_reviews_embedded")
>>> amazon_reviews_embedded = DataFrame('amazon_reviews_embedded')
>>> vs_instance = TeradataVectorStore.from_embeddings(name = "vs_example_1",
data = ['amazon_reviews_embedded', 'amazon_reviews_embedded_10'],
data_columns = ['embedding'])
# Example 1: Delete data from an existing embedding-based vector store "vs_example_1"
>>> load_data("amazon", "amazon_reviews_embedded_10_alter")
>>> amazon_reviews_embedded_10_alter = DataFrame('amazon_reviews_embedded_10_alter')
>>> vs_instance.delete_embeddings(data=amazon_reviews_embedded_10_alter)
# Example 2: Delete data from an existing embedding-based vector store "vs_example_1"
>>> vs = TeradataVectorStore(name="vs_example_1")
>>> amazon_reviews_embedded = DataFrame('amazon_reviews_embedded')
>>> vs.delete_embeddings(data=amazon_reviews_embedded)