debezium/dbz

ByLogicalTableRouter should support MongoDB [DBZ-1075]

Closed

#197 opened on Dec 11, 2025

View on GitHubContributor guide
 (0 comments) (0 reactions) (0 assignees)HTML (6 forks)auto 404
component/core-librarycomponent/mongodb-connectorgood first issuemigrated-from-jiratype/enhancement

Repository metrics

Stars
 (3 stars)
PR merge metrics
 (PR metrics pending)

Description

Migrated from DBZ-1075

{{io.debezium.transforms.ByLogicalTableRouter.updateEnvelopeSchema(Schema, String)}} requires {{before}} field to be present in the envelope. This is not the case for the MongoDB connector.

Contributor guide

Research direction
Investigate the ByLogicalTableRouter transform class, specifically the updateEnvelopeSchema method, and compare how MongoDB connector produces the envelope schema (lacking 'before' field) versus the expected schema for the transform.
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.
Fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
JavaDebeziumMongoDB
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
40