apache/pinot

Table truncate command

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#5,559 opened on Jun 13, 2020

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 (20 comments) (0 reactions) (0 assignees)Java (1,234 forks)batch import
good first issue

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Description

Add truncate operation i.e. delete all contents of table, without removing table config and schema.

For offline, this simply means deleting all segments (everything a delete operation does, but keep the table/schema definition) For realtime, this means deleting all segments, both completed and consuming. Then, we should recreate the ideal state, just like we would've for a new realtime table.

Contributor guide

Research direction
Study the delete operation implementation in Pinot for both offline and realtime tables. For offline, replicate the segment deletion logic but preserve table config and schema. For realtime, additionally handle consuming segments by stopping them and recreating the ideal state as done for new realtime tables.
Tech stack
java
Domain
database
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.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
JavaGitApache Pinot concepts
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
35