apache / apache/beam

Fix SELECT * for Pojo queries

Open
#18,831 0 comments 0 reactions 0 assignees View on GitHub
bug dsl P3 sql
Dominant language
Java
Stars
8.7k
Forks
4.7k
Avg merge
1d 20h
Merged PRs (30d)
196

Description

Rows generated from Pojos are based on field indices. Which means they can break if Pojo fields are enumerated in a different order. Which can cause generated Row to be different for different runner instance. Which can cause SELECT * to fail.

 

One solution is to make Pojo field ordering deterministic, e.g. sort them before generating field accessors.

 

Imported from Jira [BEAM-4163](https://issues.apache.org/jira/browse/BEAM-4163). Original Jira may contain additional context.
Reported by: kedin.

Contributor guide

Open the contributing guide

Assessment

This issue has not been assessed yet.

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.