Re: Problems sinking a Flink table to Kafka

2023-10-12 Thread yu'an huang
Hi, You are using a special Kafka connector. From the definition in website: "as a sink, the upsert-kafka connector can consume a changelog stream. It will write INSERT/UPDATE_AFTER data as normal Kafka messages value, and write DELETE data as Kafka messages with null values (indicate tombstone

Problems sinking a Flink table to Kafka

2023-10-11 Thread Ralph Matthias Debusmann
Hi, I am stumbling on the next Flink SQL problem - but I am sure you can help me :) I have an extremely simple table called "bla" which just has one column of type double. Now I want to sink that table into a Kafka topic. This is how I do it: CREATE TABLE bla_sink ( total DOUBLE, PRIMARY KEY (t