For PostgreSQL: https://github.com/apache/arrow-flight-sql-postgresql https://github.com/apache/arrow-flight-sql-postgresql Context: https://lists.apache.org/t

For PostgreSQL: https://github.com/apache/arrow-flight-sql-postgresql https://github.com/apache/arrow-flight-sql-postgresql Context: https://lists.apache.org/thread/sdxr8b0lj82zd0ql7zhk9472opq3qmr6 https://lists.apache.org/thread/sdxr8b0lj82zd0ql7zhk9472opq3... Also see ADBC, which aims to provide a unified API on top of various Arrow-native and non-Arrow-native database APIs: https://arrow.apache.org/blog/2023/01/05/introducing-arrow-adbc/ https://arrow.apache.org/blog/2023/01/05/introducing-arrow-a... (I am an Arrow contributor.)