[doc] Update hll_sketch and theta_sketch example in aggregation.md

apache / paimon

Apache Paimon is a lake format that enables building a Realtime Lakehouse Architecture with Flink and Spark for both streaming and batch operations.

https://paimon.apache.org/

Apache License 2.0

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Closed hadoopkandy closed 1 week ago

hadoopkandy commented 1 week ago

Update hll_sketch and theta_sketch example in aggregation.md

Don't add any new feature