Serge Rielau created SPARK-41931:
------------------------------------
Summary: Improve UNSUPPORTED_DATA_TYPE message for complex types
Key: SPARK-41931
URL: https://issues.apache.org/jira/browse/SPARK-41931
Project: Spark
Issue Type: Improvement
Components: Spark Core
Affects Versions: 3.4.0
Reporter: Serge Rielau
spark-sql> SELECT CAST(array(1, 2, 3) AS ARRAY);
[UNSUPPORTED_DATATYPE] Unsupported data type "ARRAY"(line 1, pos 30)
== SQL ==
SELECT CAST(array(1, 2, 3) AS ARRAY)
------------------------------^^^
This error message is confusing. We support ARRAY. We just require it to be
typed.
We should have an error like:
[INCOMPLETE_TYPE_DEFINITION.ARRAY] The definition of type `ARRAY` is
incomplete. You must provide an element type. For example: `ARRAY\<INT\>`.
Similarly for STRUCT and MAP.
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org
For additional commands, e-mail: issues-h...@spark.apache.org
