feat(sink): Optimizing ClickHouse Upsert (#12259)

risingwavelabs · Oct 25, 2023 · 2d428b1 · 2d428b1
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diff --git a/integration_tests/clickhouse-sink/README.md b/integration_tests/clickhouse-sink/README.md
@@ -23,6 +23,8 @@ docker compose exec clickhouse-server bash /opt/clickhouse/clickhouse-sql/run-sq
 - create_mv.sql
 - create_sink.sql
 
+We only support `upsert` with clickhouse' `CollapsingMergeTree` and `VersionedCollapsingMergeTree`
+
 4. Execute a simple query:
 
 ```sh