## Summary
- allow ISO 8601 normalization callers to provide an explicit fallback
while preserving the existing default behavior
- use the extraction conversation time when `valid_at` is missing or
invalid
- clear an invalid optional `invalid_at` instead of writing an
unparseable value
- include the rejected timestamp value in the error log
This addresses the timestamp write-through portion of #18415. It is
intentionally separate from #18462, which fixes the semantic output
prompt.
Co-authored-by: Loong <184861530+yzl0ng@users.noreply.github.com>
### Summary
- Forward each memory's stored system_prompt and user_prompt to
extract_by_llm.
- Cover both immediate save and queued extraction paths with focused
regression tests.
- Preserve the existing default-prompt fallback when stored prompts are
empty.
Fixes#18413.
### Summary
RAGFlow's "Create empty document" flow accepts names without a file
extension. The `POST /datasets/<dataset_id>/documents?type=empty` route
calls `_upload_empty_document()`, where `Path(name).suffix.lstrip(".")`
returns `""`.
In GaussDB's A/ORA compatibility mode, that empty string is persisted as
SQL `NULL`. Because `document.suffix` was defined as `NOT NULL`, the
insert failed with a constraint violation.
### Summary
Providers whose static catalogue is empty discover their models by
calling the base URL the user typed. `verify_api_key` wrapped that call
in a bare `except Exception: pass` and then returned a flat `No models
found for provider 'X'`, so an unreachable host, a closed port, a wrong
scheme and a bad TLS setup all produced the same sentence, with the
actual error discarded and not even logged.
## Summary
- Frontend `Images` already includes `bmp`
(`web/src/constants/common.ts`), and picture parsing already accepts
`.bmp` (`internal/parser/parser/picture_parser.go`, `rag/app/picture.py`
via Pillow).
- This PR adds `bmp` to both whitelist sites and a small Go unit test.
Co-authored-by: zhangjiangshan1 <zhangjiangshan1@kingsoft.com>
Co-authored-by: Cursor <cursoragent@cursor.com>
Follow-up to #17526 ("Refactor: merge dataset scope graph"), which introduced two code paths that touch Infinity columns the deployed schema does not declare. This PR makes the runtime robust against the old schema while also adding the new column to the new schema so freshly created tables are correct.
### What problem does this PR solve?
Incremental Wiki compilation could lose provenance for claim-light
entities, produce unstable page groups across embedding models, route
entities to unrelated pages, and assign topics without sufficient
page-level context. Document removals and page membership changes could
also leave stale Wiki state.
This PR:
- preserves source document and chunk provenance throughout entity
matching, reduction, page generation, and deletion;
- uses embeddings to retrieve candidates and the LLM to make final page
grouping and incremental routing decisions;
- batches embedding and LLM operations with bounded concurrency and
deterministic fallbacks;
- selects source-scoped topic candidates with embeddings before the page
LLM chooses the final topic;
- rebuilds Wiki state when the compilation mode or embedding model
changes;
- normalizes Wiki array fields returned by the API and retains entities
without relations in graph responses.
### Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)
