Trigger an async column backfill job
Trigger an asynchronous backfill job for a computed column on table id. The column must be a virtual (UDF-backed) column. Returns a job ID for tracking.
Request body
Arbitrary context as key-value pairs. How to use the context is custom to the specific implementation.
On a request, it carries caller-provided context to the implementation. On a response, it carries implementation-provided context back to the caller.
REST NAMESPACE ONLY Context entries are mapped to and from HTTP headers using the header. prefix:
- On a request, any entry whose key starts with header. is sent as an HTTP request header with the prefix stripped. For example, the entry {"header.Authorization": "Bearer abc"} is sent as the request header Authorization: Bearer abc.
- On a response, every HTTP response header is returned as an entry whose key is the header name prefixed with header.. For example, the response header x-request-id: abc123 is returned as the entry {"header.x-request-id": "abc123"}.
Table identifier path (namespace + table name)
Branch to target. When not specified, the main branch is used.
Lance field path to backfill. Nested fields use dot-separated segments; use backtick-quoted segments for literal dots and double backticks inside quoted segments. Use canonical full paths for display and errors; leaf names alone only identify top-level fields; invalid or unresolved paths should return InvalidInput or TableColumnNotFound.
Optional WHERE clause filter
Optional concurrency override
Optional intra-applier concurrency override
Optional minimum checkpoint size
Optional maximum checkpoint size
Optional batch checkpoint flush interval in seconds
Optional table version to read from
Optional task size
Optional number of fragments
Optional checkpoint size
Optional commit granularity
Optional cluster name
Optional manifest name
Response
Backfill job accepted
Arbitrary context as key-value pairs. How to use the context is custom to the specific implementation.
On a request, it carries caller-provided context to the implementation. On a response, it carries implementation-provided context back to the caller.
REST NAMESPACE ONLY Context entries are mapped to and from HTTP headers using the header. prefix:
- On a request, any entry whose key starts with header. is sent as an HTTP request header with the prefix stripped. For example, the entry {"header.Authorization": "Bearer abc"} is sent as the request header Authorization: Bearer abc.
- On a response, every HTTP response header is returned as an entry whose key is the header name prefixed with header.. For example, the response header x-request-id: abc123 is returned as the entry {"header.x-request-id": "abc123"}.
The job ID for tracking the backfill job