CREATE INDEX#
The CREATE INDEX statement allows us to construct an EvaDB based index to accelerate semantic based searching. The index can be created on either a column of a table directly or outputs from a function running on a column of a table.
CREATE INDEX [index_name]
ON [table_name] ([column_name])
USING [index_method]
CREATE INDEX [index_name]
ON [table_name] ([function_name]([column_name]))
USING [index_method]
[index_name] is the name the of constructed index.
[table_name] is the name of the table, on which the index is created.
[column_name] is the name of one of the column in the table. We currently only support creating index on single column of a table.
[function_name] is an optional parameter that can be added if the index needs to be constructed on results of a function.
Examples#
CREATE INDEX reddit_index
ON reddit_dataset (data)
USING FAISS
CREATE INDEX func_reddit_index
ON reddit_dataset (SiftFeatureExtractor(data))
USING QDRANT
You can check out similarity search use case about how to use index automatically.