Hi All, I created a ticket to implement an Apache Spark function called named_struct https://issues.apache.org/jira/browse/CALCITE-5701
I'm wondering if there is already a construct for creating nested structures and their types. I saw an open PR for nested row types: https://github.com/apache/calcite/pull/2573 any hints on the subject is gratefully received, I'm planning on working on this task this week. -- Guillaume Massé [Gee-OHM] (马赛卫)
