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docs: Updating a materialized view for a sink #18638

Open jseldess opened 1 year ago

jseldess commented 1 year ago

Documentation request

Based on this thread,, when you update a materialized view that is the source for a sink, if you're using a schema registry and you want to reuse the existing sink topic, you may need to loosen the schema registry compatibility constraints; otherwise, you'll see an error like:

15:55:17    error publishing kafka schemas for sink: unable to publish value schema to registry in kafka sink: schema being registered is incompatible with an earlier schema

Another option would be to create a new sink topic.

cc @josharenberg

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josharenberg commented 1 year ago

Linking this issue, as it's related https://github.com/MaterializeInc/materialize/issues/18544