apache/pinot

Impossible to use the virtual column generated by the timestamp index ($ts$DAY) in the startree index

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#10,213 opened on Feb 1, 2023

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Description

When I try to create my realtime table with a timestamp and a startree index, I get this error :

Invalid table config: my-table-name_REALTIME. Column Name $ts$DAY defined in StarTreeIndex Config must be a valid column defined in the schema

Currently the table config validation requires all the star-tree index to be explicitly configured within the schema.

Contributor guide

Research direction
Examine the StarTree index validation logic in Pinot's table config validation to understand why the virtual column $ts$DAY is rejected. The fix likely involves updating the validation to accept virtual columns that are generated from timestamp indexes.
Tech stack
java
Domain
backenddatabase
Issue type
Bug
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.
Half day
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
JavaApache Pinot
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
50