vespa-engine/vespa

Document selection string tester

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#16,877 opened on Mar 10, 2021

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good first issue

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Description

In a given content cluster, using the schema, let the user easily create a selection string.

Then, add ability to run a visit using this, outputting how far into document space it is and how many documents are returned so far. This simplifies the process to develop a selection string and test it before deploying it - i.e. how many docs / fraction is kept when running the visit with the selection

visit can dump IDs only to speed up

Contributor guide

Research direction
Understand the existing selection string handling in Vespa and implement a command line tool or API endpoint that allows testing selection strings by running a visit with only document IDs and reporting the fraction of documents selected and the count.
Tech stack
java
Domain
backend
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-2 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
JavaVespa
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
35