Local File Connection
InlineLocalFileConnection
info
InlineLocalFileConnection is defined beneath the following ancestor nodes in the YAML structure:
Below are the properties for the InlineLocalFileConnection. Each property links to the specific details section further down in this page.
| Property | Default | Type | Required | Description |
|---|---|---|---|---|
| local_file | Yes |
Property Details
Connection
Data source/sink Connection.
| Property | Default | Type | Required | Description |
|---|---|---|---|---|
| connection | One of: S3Connection GcsConnection AbfsConnection LocalFileConnection SnowflakeConnection BigQueryConnection MSSQLConnection MySQLConnection OracleConnection PostgresConnection HttpConnection DuckDBConnection SFTPConnection DatabricksConnection | Yes | Data system Connection. |
DuckDBConnection
Connection to a DuckDB database.
| Property | Default | Type | Required | Description |
|---|---|---|---|---|
| description | string | No | Brief description of what the model does. | |
| metadata | No | Meta information of a resource. In most cases it doesn't affect the system behavior but may be helpful to analyze project resources. | ||
| name | string | Yes | The name of the model | |
| duckdb | Yes |
DuckDBConnectionOptions
DuckDB Connection options.
| Property | Default | Type | Required | Description |
|---|---|---|---|---|
| max_query_length | integer | No | Maximum combined query length permitted during query batching. | |
| max_concurrent_queries | integer | No | Maximum number of concurrent queries permitted. | |
| max_combined_sql_statements | integer | No | Maximum number of combined SQL statements permitted during query batching. | |
| path | string | No | Path to the DuckDB database file. Use ':memory:' for in-memory databases. This setting is ignored when DuckLake configuration is present. | |
| memory_limit | integer | No | Memory limit to use for the DuckDB Connection. | |
| ducklake | No | Configuration for using DuckLake with this DuckDB Connection. | ||
| motherduck | No | Configuration for using MotherDuck with this DuckDB Connection. | ||
| schema | string | No | Schema to use for the DuckDB Connection. If left empty, the Flow name will be used as the schema name at runtime | |
| init_sql | string | No | SQL to run when the DuckLake Connection is initialized. |
DuckLakeOptions
DuckLake configuration options.
| Property | Default | Type | Required | Description |
|---|---|---|---|---|
| metadata_connection_name | string | No | Name of the Ascend Connection for DuckLake metadata storage (Postgres Connections only). | |
| data_connection_name | string | No | Name of the Ascend Connection for DuckLake data storage (Local File, GCS, S3, or ABFS Connections supported). | |
| metadata_connection | Any of: InlinePostgresConnection ASCEND_MANAGED | No | Inline metadata Connection configuration (Postgres Connections only). | |
| data_connection | Any of: One of: InlineLocalFileConnection InlineS3Connection InlineGcsConnection InlineAbfsConnection ASCEND_MANAGED | No | Inline data Connection configuration (Local File, GCS, S3, or ABFS Connections supported). | |
| catalog | string | No | Name of the DuckLake catalog to use. If not provided, the catalog name will be inferred from the profile name. | |
| metadata_schema | default | string | No | Schema name within the Postgres database to use for DuckLake metadata storage. If left as the default value of 'default', the schema name will be replaced with the catalog name at runtime. |
| data_path | ascendlake/data | string | No | Path within the data Connection root where DuckLake data files will be stored. The catalog name will always be appended to the path provided. |
| local_mode | False | boolean | No | If set to True, sets up the DuckLake Connection with local storage, bypassing the metadata_connection(_name), data_connection(_name), and max_concurrent_queries settings. This is useful for rapid testing and development. |
| ducklake_max_retry_count | 100 | integer | No | The value to set for the 'ducklake_max_retry_count' DuckLake configuration setting. Defaults to 100. |
| use_httpfs | False | boolean | No | Use HTTPFS to access data for available providers. |
| cache | No | (experimental) Local cache options for DuckLake. |
LocalFileConnectionOptions
Local File Connection options.
| Property | Default | Type | Required | Description |
|---|---|---|---|---|
| root | string | Yes | Root directory for the Local File Connection. |