- [P20260217-171541] 2026-02-17 17:15:41 +0800
  - summary: CONTEXT TRANSFER: We are continuing a conversation that had gotten too long. Here is a summary: --- ## TASK 1: ODS Dedup…
  - prompt:
```text
CONTEXT TRANSFER: We are continuing a conversation that had gotten too long. Here is a summary:

---
## TASK 1: ODS Dedup & Standardize Spec Execution (Run All Tasks)

**STATUS**: done
**USER QUERIES**: Referenced from context transfer — "Run all tasks for this spec"
**DETAILS**: Executed all 9 tasks from `.kiro/specs/ods-dedup-standardize/tasks.md`. All phases completed:
- Phase 1 (Tasks 1.1-1.4): Cleaned OdsTaskSpec, added SnapshotMode enum, migrated 23 tasks
- Phase 2 (Tasks 3.1-3.4): Hash algorithm changed to payload+is_delete, skip_unchanged default True
- Phase 3 (Task 5.1): DDL migration for ODS indexes
- Phase 4 (Tasks 6.1-6.3): Soft-delete changed from UPDATE to INSERT
- Phase 5 (Tasks 8.1-8.5): Documentation sync — all subtasks completed
- Phase 6 (Task 9): Final checkpoint — all ODS tests passed (32/32)

**FILEPATHS**:
- `apps/etl/pipelines/feiqiu/tasks/ods/ods_tasks.py`
- `apps/etl/pipelines/feiqiu/tests/unit/test_ods_dedup_properties.py`
- `db/etl_feiqiu/migrations/2026-02-17__add_ods_latest_version_indexes.sql`
- `db/etl_feiqiu/schemas/ods.sql`
- `.kiro/specs/ods-dedup-standardize/tasks.md`

## TASK 2: Dataflow Structure Analysis

**STATUS**: done
**USER QUERIES**: Referenced from context transfer
**DETAILS**: Ran two-phase dataflow analysis for feiqiu connector. Phase 1: 23 tables collected (3405 records). Phase 2: Report generated at `export/dataflow_analysis/dataflow_2026-02-17_040043.md` (576.6 KB).

**FILEPATHS**:
- `scripts/ops/analyze_dataflow.py`
- `scripts/ops/gen_dataflow_report.py`
- `export/dataflow_analysis/collection_manifest.json`

## TASK 3: API→ODS Processing Flow Report

**STATUS**: done
**USER QUERIES**: "给我修改后，API - ODS 的处理流程 的 全面说明"
**DETAILS**: Provided comprehensive report of the post-refactoring API→ODS flow covering: OdsTaskSpec configuration, record preprocessing (_merge_record_layers, _normalize_is_delete_flag), content_hash computation (payload+is_delete SHA-256), skip_unchanged dedup, INSERT ON CONFLICT writing, and snapshot soft-delete (INSERT delete-version rows). Followed up with full parameter listing across both layers.

## TASK 4: ODS Parameter Cleanup

**STATUS**: done
**USER QUERIES**: "两层参数的默认值不太科学吧？旧配置是不是可以删除了？", "改吧"
**DETAILS**: Made 3 code changes to `ods_tasks.py`:
1. Changed `run.snapshot_missing_delete` default from `False` to `True` (3 locations: line 132 in execute(), line 667 in _insert_records_schema_aware default_is_delete)
2. Deleted `run.ods_backfill_null_columns` compatibility code (3 lines removed from _insert_records_schema_aware)
3. Fixed Property 6 test deadline issue (`deadline=None` added to `test_ods_dedup_properties.py`)

All 32 ODS-related tests passed. 7 failures are pre-existing unrelated issues (DDL PBT slow generation, audit directory empty, deadline timeouts in other tests).

**FILEPATHS**:
- `apps/etl/pipelines/feiqiu/tasks/ods/ods_tasks.py`
- `apps/etl/pipelines/feiqiu/tests/unit/test_ods_dedup_properties.py`

## TASK 5: ODS→DWD Processing Flow Report

**STATUS**: done
**USER QUERIES**: "相同的思路，排查ODS - DWD 层数据处理全流程和参数，给我个报告"
**DETAILS**: Provided comprehensive report covering:
- DwdLoadTask architecture: 44 DWD tables (17 dim + 27 fact), per-table transactions
- ODS latest snapshot via DISTINCT ON + fetched_at DESC
- Dimension merge: Type1 Upsert (no SCD2 cols) vs SCD2 (close old + insert new version)
- Value comparison with type normalization (empty→None, naive→aware datetime, string→Decimal, string→bool)
- Fact increment: watermark mode (MAX fetched_at) or window override mode
- Column mapping: FACT_MAPPINGS explicit > same-name auto-match > PK fallback to id
- Missing PK backfill for FACT_MISSING_FILL_TABLES
- Full parameter listing (code-level + runtime)

Also identified 4 issues:
1. `BaseDwdTask` is dead code (DwdLoadTask inherits BaseTask, not BaseDwdTask)
2. `_build_column_mapping()` references undefined `ods_table`/`cur` variables (latent bug, never triggered because fetched_at always exists)
3. `_merge_fact_increment` hardcodes `order_col = "fetched_at"`, `_pick_order_column()` and `FACT_ORDER_CANDIDATES` are unused
4. `FACT_MISSING_FILL_TABLES` may need expansion

**FILEPATHS**:
- `apps/etl/pipelines/feiqiu/tasks/dwd/dwd_load_task.py`
- `apps/etl/pipelines/feiqiu/tasks/dwd/base_dwd_task.py`

## USER CORRECTIONS AND INSTRUCTIONS:
- All output text must be in simplified Chinese (per `language-zh.md`)
- Changes to `tasks/`, `db/`, `*.sql` are high-risk and require `/audit` after completion (per `governance.md`)
- Use Python scripts for complex operations, simple shell commands for single commands (per `tech.md`)
- Operating system is Windows with cmd shell
- Cannot use `cd` command in shell — use `cwd` parameter instead
- Test commands: ETL unit tests `python -m pytest tests/unit` (cwd: `apps/etl/pipelines/feiqiu`), monorepo PBT `python -m pytest tests/` (cwd: root)
- Pending `/audit` reminder is active — high-risk paths were modified (tasks/, db/, *.sql). User needs to manually trigger `/audit`
- The ODS parameter cleanup (Task 4) modified `tasks/` high-risk path — audit still pending

## Files to read
- `apps/etl/pipelines/feiqiu/tasks/dwd/dwd_load_task.py`
- `apps/etl/pipelines/feiqiu/tasks/ods/ods_tasks.py`
- `.kiro/specs/ods-dedup-standardize/tasks.md`

USER QUERIES(most recent first):
1. 相同的思路，排查ODS - DWD 层数据处理全流程和参数，给我个报告
2. Output:
Command executed successfully with no output.

Exit Code: 0
3. Output:
Command executed successfully with no output.

Exit Code: 0
4. 相同的思路，排查ODS - DWD 层数据处理全流程和参数，给我个报告
5. Output:
Command executed successfully with no output.

Exit Code: 0
6. Output:
Command executed successfully with no output.

Exit Code: 0
7. Output:
Command executed successfully with no output.

Exit Code: 0
8. 改吧。改完之后再列举2层所有配置。
9. Output:
Command executed successfully with no output.

Exit Code: 0
10. Output:
Command executed successfully with no output.

Exit Code: 0
11. Output:
Command executed successfully with no output.

Exit Code: 0
12. 两层参数的默认值不太科学吧？旧配置是不是可以删除了？
13. Output:
Command executed successfully with no output.

Exit Code: 0
14. Output:
Command executed successfully with no output.

Exit Code: 0
15. Output:
Command executed successfully with no output.

Exit Code: 0
16. 现在，控制的参数有哪些？都是什么作用？
17. Output:
Command executed successfully with no output.

Exit Code: 0
18. Output:
Command executed successfully with no output.

Exit Code: 0
19. Output:
Command executed successfully with no output.

Exit Code: 0
20. 给我修改后，API - ODS 的处理流程 的 全面说明。
21. Output:
Hook execution failed with exit code 1.

Error output:
[AUDIT REMINDER] Pending audit detected (root-file, dir:admin-web, dir:backend, dir:etl, dir:miniprogram, dir:db, db-schema-change). Run /audit (Manual: Run /audit hook) to sync docs & write audit artifacts. (rate limit: 15min)



Exit Code: 1
22. Output:
Command executed successfully with no output.

Exit Code: 0
23. Output:
Command executed successfully with no output.

Exit Code: 0
24. Output:
Hook execution failed with exit code 1.

Error output:
[AUDIT REMINDER] Pending audit detected (root-file, dir:admin-web, dir:backend, dir:etl, dir:miniprogram, dir:db, db-schema-change). Run /audit (Manual: Run /audit hook) to sync docs & write audit artifacts. (rate limit: 15min)



Exit Code: 1
25. <implicit-rules>## Implicit Rules
Focus on creating a new spec file or identifying an existing spec to update. 
If starting a new spec, create a requirements.md file in the .kiro/specs directory with clear user stories and acceptance criteria. 
If working with an existing spec, review the current requirements and suggest improvements if needed. 
Do not make direct code changes yet. First establish or review the spec file that will guide our implementation.</implicit-rules>
---

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INSTRUCTIONS:
Continue working until the user query has been fully addressed. Do not ask for clarification - proceed with the work based on the context provided.
IMPORTANT: you need to read from the files to Read section
```
