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Add tests for IN-list filter pruning and NOT filter behavior

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还没有人认领这个 Issue。

评估

难度
2/5
预计耗时
1-3 小时
新手友好度
47/100
Issue 类型
功能
描述清晰度
基本清楚
活跃度
停滞
技术栈
python, rust
领域
databases, testing

调研方向

Start by locating the TestFilterPushdown suite and the Rust in_list_excludes() method mentioned in the issue. Add regression coverage for IN-list partition pruning and both NOT comparison cases, using the four-partition example as a guide. Done means the tests verify that only partitions whose ranges may contain matching values are read.

由索引模型根据 Issue 内容生成。

描述

enhancement

Problem

The TestFilterPushdown suite is missing coverage for two cases:

1. IN-list pruning

The Rust in_list_excludes() method is implemented but never exercised by tests. A test should verify that WHERE dim IN (v1, v2) prunes partitions where none of v1, v2 fall within the partition range.

Example: 4 time partitions, WHERE time IN ('2020-01-05', '2020-01-10') should read only partition 0.

2. NOT filter behavior

The Expr::Not arm previously had a correctness bug (now fixed). A regression test should verify:

  • NOT (col > X) correctly includes partitions containing values ≤ X
  • NOT (col < X) correctly includes partitions containing values ≥ X

Why now

Adding these tests serves as a regression guard to confirm that the Expr::Not fix remains correct and that IN-list pruning works as advertised. Without them, future changes to the pruning logic could silently regress.

主要语言
Python
星标
142
派生
19
平均合并
1 天 9 小时
30 天内合并 PR
9

环境准备

  • 没有 Dockerfile 或 Docker Compose 文件
  • 没有 Pull Request 模板
  • 阅读贡献指南

从这里开始

  1. 先读完整个 Issue,再读项目的贡献指南。
  2. 在 Issue 下留言说明你要接手 —— 这能避免两个人做同样的事。
  3. Fork 仓库,在一个分支上完成修改。
  4. 提交 Pull Request,并在描述里引用这个 Issue 编号。

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