DirectoryNamespace

lance_namespace::dir

Struct DirectoryNamespace 

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pub struct DirectoryNamespace { /* private fields */ }
Expand description

Directory-based implementation of Lance Namespace.

This implementation stores tables as Lance datasets in a directory structure. It supports local filesystems and cloud storage backends through OpenDAL.

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impl DirectoryNamespace

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pub fn new(properties: HashMap<String, String>) -> Result<Self>

Create a new DirectoryNamespace instance

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impl LanceNamespace for DirectoryNamespace

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fn list_namespaces<'life0, 'async_trait>( &'life0 self, request: ListNamespacesRequest, ) -> Pin<Box<dyn Future<Output = Result<ListNamespacesResponse>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

List namespaces.
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fn describe_namespace<'life0, 'async_trait>( &'life0 self, request: DescribeNamespaceRequest, ) -> Pin<Box<dyn Future<Output = Result<DescribeNamespaceResponse>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Describe a namespace.
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fn create_namespace<'life0, 'async_trait>( &'life0 self, request: CreateNamespaceRequest, ) -> Pin<Box<dyn Future<Output = Result<CreateNamespaceResponse>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Create a new namespace.
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fn drop_namespace<'life0, 'async_trait>( &'life0 self, request: DropNamespaceRequest, ) -> Pin<Box<dyn Future<Output = Result<DropNamespaceResponse>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Drop a namespace.
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fn namespace_exists<'life0, 'async_trait>( &'life0 self, request: NamespaceExistsRequest, ) -> Pin<Box<dyn Future<Output = Result<()>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Check if a namespace exists.
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fn list_tables<'life0, 'async_trait>( &'life0 self, request: ListTablesRequest, ) -> Pin<Box<dyn Future<Output = Result<ListTablesResponse>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

List tables in a namespace.
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fn describe_table<'life0, 'async_trait>( &'life0 self, request: DescribeTableRequest, ) -> Pin<Box<dyn Future<Output = Result<DescribeTableResponse>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Describe a table.
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fn table_exists<'life0, 'async_trait>( &'life0 self, request: TableExistsRequest, ) -> Pin<Box<dyn Future<Output = Result<()>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Check if a table exists.
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fn create_table<'life0, 'async_trait>( &'life0 self, request: CreateTableRequest, request_data: Bytes, ) -> Pin<Box<dyn Future<Output = Result<CreateTableResponse>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Create a new table with data from Arrow IPC stream.
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fn create_empty_table<'life0, 'async_trait>( &'life0 self, request: CreateEmptyTableRequest, ) -> Pin<Box<dyn Future<Output = Result<CreateEmptyTableResponse>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Create an empty table (metadata only operation).
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fn drop_table<'life0, 'async_trait>( &'life0 self, request: DropTableRequest, ) -> Pin<Box<dyn Future<Output = Result<DropTableResponse>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Drop a table.
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fn register_table<'life0, 'async_trait>( &'life0 self, _request: RegisterTableRequest, ) -> Pin<Box<dyn Future<Output = Result<RegisterTableResponse>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Register a table.
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fn deregister_table<'life0, 'async_trait>( &'life0 self, _request: DeregisterTableRequest, ) -> Pin<Box<dyn Future<Output = Result<DeregisterTableResponse>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Deregister a table.
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fn count_table_rows<'life0, 'async_trait>( &'life0 self, _request: CountTableRowsRequest, ) -> Pin<Box<dyn Future<Output = Result<i64>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Count rows in a table.
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fn insert_into_table<'life0, 'async_trait>( &'life0 self, _request: InsertIntoTableRequest, _request_data: Bytes, ) -> Pin<Box<dyn Future<Output = Result<InsertIntoTableResponse>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Insert data into a table.
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fn merge_insert_into_table<'life0, 'async_trait>( &'life0 self, _request: MergeInsertIntoTableRequest, _request_data: Bytes, ) -> Pin<Box<dyn Future<Output = Result<MergeInsertIntoTableResponse>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Merge insert data into a table.
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fn update_table<'life0, 'async_trait>( &'life0 self, _request: UpdateTableRequest, ) -> Pin<Box<dyn Future<Output = Result<UpdateTableResponse>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Update a table.
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fn delete_from_table<'life0, 'async_trait>( &'life0 self, _request: DeleteFromTableRequest, ) -> Pin<Box<dyn Future<Output = Result<DeleteFromTableResponse>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Delete from a table.
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fn query_table<'life0, 'async_trait>( &'life0 self, _request: QueryTableRequest, ) -> Pin<Box<dyn Future<Output = Result<Bytes>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Query a table.
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fn create_table_index<'life0, 'async_trait>( &'life0 self, _request: CreateTableIndexRequest, ) -> Pin<Box<dyn Future<Output = Result<CreateTableIndexResponse>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Create a table index.
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fn list_table_indices<'life0, 'async_trait>( &'life0 self, _request: ListTableIndicesRequest, ) -> Pin<Box<dyn Future<Output = Result<ListTableIndicesResponse>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

List table indices.
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fn describe_table_index_stats<'life0, 'async_trait>( &'life0 self, _request: DescribeTableIndexStatsRequest, ) -> Pin<Box<dyn Future<Output = Result<DescribeTableIndexStatsResponse>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Describe table index statistics.
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fn describe_transaction<'life0, 'async_trait>( &'life0 self, _request: DescribeTransactionRequest, ) -> Pin<Box<dyn Future<Output = Result<DescribeTransactionResponse>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Describe a transaction.
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fn alter_transaction<'life0, 'async_trait>( &'life0 self, _request: AlterTransactionRequest, ) -> Pin<Box<dyn Future<Output = Result<AlterTransactionResponse>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Alter a transaction.

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