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Add more detailed docs for the ANN index and search features

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This commit is contained in:
Chang She
2023-04-24 19:19:55 -07:00
parent 177192f852
commit 4f2dae8a0d
3 changed files with 34 additions and 13 deletions
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7
python/lancedb/query.py
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@@ -108,7 +108,12 @@ class LanceQueryBuilder:
return self
def to_df(self) -> pd.DataFrame:
"""Execute the query and return the results as a pandas DataFrame."""
"""
Execute the query and return the results as a pandas DataFrame.
In addition to the selected columns, LanceDB also returns a vector
and also the "score" column which is the distance between the query
vector and the returned vector.
"""
ds = self._table.to_lance()
# TODO indexed search
tbl = ds.to_table(

3
python/lancedb/table.py
View File

@@ -166,6 +166,9 @@ class LanceTable:
Returns
-------
A LanceQueryBuilder object representing the query.
Once executed, the query returns selected columns, the vector,
and also the "score" column which is the distance between the query
vector and the returned vector.
"""
if isinstance(query, list):
query = np.array(query)