quickwit-oss/tantivy

Make the behavior of an empty query configurable in `QueryParser`

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#386 建立於 2018年8月20日

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 (4 留言) (0 反應) (0 負責人)Rust (8,354 star) (499 fork)batch import
enhancementgood first issuehelp wanted

描述

In some use case, most of the time, people want an empty query to match nothing, but for some analytics use case, it might make more sense for empty query to match all documents.

Add a setter ".set_empty_query_match_all(should_match_all: bool)" to the QueryParser to enforce the non default behavior. (Also add a getter .get_empty_query_match_all() to read this property).

貢獻者指南

技術棧
rust
領域
backend
議題類型
feature
難度面向新貢獻者的預計實作難度，1 表示很小改動，5 表示專家級工作。
2
預計時間有經驗貢獻者完成調查、實作、測試並準備 pull request 的粗略時間範圍。
1-3 hours
活動狀態議題目前的可參與程度：新鮮、活躍、陳舊、阻塞或等待維護者輸入。
fresh
清晰度議題是否清楚說明預期改動、驗收標準和下一步。
clear
前置要求
Rust programmingbasic knowledge of Tantivy QueryParser
新手友善度1-100 的估計分數，表示該議題對首次貢獻者的友善程度。
60
研究方向
Locate the QueryParser struct in the Tantivy source code (likely in src/query/query parser.rs or similar). Add a boolean field `empty query match all` with a setter and getter. Modify the `parse query` or equivalent method to check this flag when an empty query is encountered. Ensure that the default behavior (empty query matches nothing) remains unchanged unless the setter is called with `true`. Test the changes by writing unit tests for both behaviors.