[flink] Support updating row type nested in array/map in Flink #4528
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Purpose
This PR supports updating row type nested in array/map in Flink. For example, we can update a field of type
ARRAY<MAP<INT, ROW<f1 INT, f2 DOUBLE>>>
to typeARRAY<MAP<INT, ROW<f3 STRING, f1 INT>>>
with theALTER TABLE
SQL.Tests
Unit tests and IT cases.
API and Format
No format changes.
Documentation
Document will be added later.