Lets Talk CDC Change Feed Playground
Plan · Practice · Share

Prototype change data capture without leaving the browser.

Create a lightweight schema, act on rows, and watch the resulting change feed update in real time.

Choose your path

Guided walkthrough or real-world scenarios

Start with the guided walkthrough to experience the full flow, or jump straight into curated CDC blueprints.

Open evaluation checklist Open method cheat sheet

Want presets instead? Pick any scenario below to load schema, rows, and starting operations instantly.

Guided walkthrough

We’ll help you:

  • Model a table with clear primary keys.
  • Seed realistic rows to operate on.
  • Trigger inserts, updates, and deletes to watch the change feed react in real time.
Takes about a minute end-to-end.

Explore real-world scenarios

Load curated CDC blueprints to jumpstart your experiments.

Step 1

Model your schema

Add columns, choose types, and mark primary keys so downstream operations know how to locate rows.

Operate

Edit row values

Provide values for your columns, then choose an operation to emit events.

Schema walkthrough

Add and drop a column to see how capture methods react during the stream.

Step 2

Populate the table

Review current rows, seed realistic data, or clear the table to reset.

Step 3

Inspect change events

Filter operations, include before-images, and export NDJSON to share scenarios.

Envelope

Stream controls

Kick off snapshots, clear logs, and decide how much context to ship with each event.

Visibility

Filter & export

Toggle operations and save NDJSON when you are ready to share. 


                

                  

                    

                      
Event inspector

                      

                        Peek at before/after payloads, diff fields, and replay to
                        the table.
                      

                    

                    

                      
                      
                      
                    

                  

                  

                    
    
                    
    
                  
    
                
    
              
    
              
            
    
          
    
        
    
      
    

      
    
        
    
          
    
            
    Playground core
    
            
    
              Change Feed Atomicity Playground
            
    
            
    
              Three-lane view of source rows, change feed partitions, and consumer apply policies. Toggle drift, drop faults,
              and backlog throttling to see how transactions behave.
            
    
          
    
          
    
            Apply on commit vs as polled
            Commit & schema drift
            Lag & backlog badges
          
    
        
    
        
    
          
    Preparing the change feed playground…
    
        
    
      
    

      
    
        
    
          
    
            
    
              CDC Method Preview (beta)
            
    
            
    
              Load the CDC Method Comparator to see how polling, trigger, and
              log-based capture respond as you run the same operations.
            
    
          
    
        
    
        
    
          
    Preparing simulator preview…