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chore(deps): bump prometheus-client from 0.19.0 to 0.24.1 in /backend#2

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chore(deps): bump prometheus-client from 0.19.0 to 0.24.1 in /backend#2
dependabot[bot] wants to merge 1 commit into
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dependabot/pip/backend/prometheus-client-0.24.1

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Bumps prometheus-client from 0.19.0 to 0.24.1.

Release notes

Sourced from prometheus-client's releases.

v0.24.1

v0.24.0

What's Changed

Full Changelog: prometheus/client_python@v0.23.1...v0.24.0

v0.23.1

What's Changed

New Contributors

Full Changelog: prometheus/client_python@v0.23.0...v0.23.1

v0.23.0

What's Changed

New Contributors

Full Changelog: prometheus/client_python@v0.22.1...v0.23.0

v0.22.1

What's Changed

Full Changelog: prometheus/client_python@v0.22.0...v0.22.1

... (truncated)

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Bumps [prometheus-client](https://github.com/prometheus/client_python) from 0.19.0 to 0.24.1.
- [Release notes](https://github.com/prometheus/client_python/releases)
- [Commits](prometheus/client_python@v0.19.0...v0.24.1)

---
updated-dependencies:
- dependency-name: prometheus-client
  dependency-version: 0.24.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Please fix the above issues or remove invalid values from dependabot.yml.

willrone added a commit that referenced this pull request Feb 8, 2026
- 减少数据库写入次数
- 预期提升: 10-15秒
willrone added a commit that referenced this pull request Feb 10, 2026
Bug #1 (P0): stock_pool_type 未展开为完整股票列表
- 当 stock_pool_type='fixed_500' 时,回测只使用 stock_codes 字段(可能仅 1 只股票)
- 修复:在 execute_backtest_task_simple 中检测 stock_pool_type,
  从 parquet 数据目录读取前 500 只股票代码并展开

Bug #2 (P1): 截面特征在回测时全部为 0
- DataPreprocessor 只调用单股票版 precompute_all_signals,
  不计算截面特征(market_up_ratio、volume_rank、return_5d_rank 等 9 个特征)
- 修复:新增 _try_batch_precompute 方法,当策略支持
  precompute_all_signals_batch 且有多只股票时优先调用 batch 版本
- 同时修复 Portfolio 策略递归调用的方法名错误(_precompute_strategy_signals -> precompute_strategy_signals)
- 修复多进程预计算方法名错误(_precompute_signals_multiprocess -> precompute_signals_multiprocess)
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