[EPIC] Spark XML functions

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难度
5/5
预计耗时
一周以上
新手友好度
22/100
Issue 类型
功能
描述清晰度
基本清楚
活跃度
活跃
技术栈
rust

调研方向

This is a tracking epic, not a single change: xpath/typed variants, from_xml, to_xml and schema_of_xml each live in their own sub-issue and none of those are listed here. Start by finding which sub-issue is unclaimed and unblocked, then read the matching Spark ExpressionDescription examples and test suites to confirm the expected semantics before touching the Rust implementation in the datafusion-spark crate. Done means one function matches Spark's behaviour and its tests, not that the epic closes; the payload does not show file paths, so locate the crate's existing scalar-function modules first.

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描述

EPIC

Part of #5. Tracks the Spark functions in this area that apache/datafusion-comet#7300 needs and that datafusion-spark does not implement yet. Each function has its own sub-issue below.

xpath and its typed variants, from_xml, to_xml and schema_of_xml.


This issue was generated by an LLM (Claude) from the Apache Spark source code and tests. Examples come from Spark's ExpressionDescription examples, test suites and .sql.out golden files, but please verify them against Spark before relying on them.

主要语言
Rust
星标
7
派生
15
平均合并
16 小时 43 分钟
30 天内合并 PR
26

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  • 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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