Timo Walther created FLINK-18417:
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Summary: Support List as a conversion class for ARRAY
Key: FLINK-18417
URL: https://issues.apache.org/jira/browse/FLINK-18417
Project: Flink
Issue Type: Sub-task
Components: Table SQL / API
Reporter: Timo Walther
Assignee: Timo Walther
Currently we don't support {{List}} as a conversion class in the new type
system. However, there are multiple reasons why we should support this
conversion:
1) Hive uses {{List}} as the default for representing arrays e.g. in functions.
2) The new Expression DSL supports converting lists to array literals already.
3) The list interface is essential for Java users and part of many structured
types.
4) We need to represent lists in {{ListView}} for aggregate functions.
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