Hyukjin Kwon created SPARK-60982:
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Summary: Build an array of a list or a NumPy array in lit() in
Spark Connect Rust as PySpark does
Key: SPARK-60982
URL: https://issues.apache.org/jira/browse/SPARK-60982
Project: Spark
Issue Type: Bug
Components: Connect
Affects Versions: connect-rust-4.3.0
Reporter: Hyukjin Kwon
In PySpark, {{lit}} of a list builds an array of the literals of its elements:
{{F.lit([1, 2])}} is {{array(1, 2)}}, and a list with a Column raises
{{PySparkValueError}} {{COLUMN_IN_LIST}}. A one-dimensional NumPy array becomes
such an array cast to the array type of its dtype, and a dtype without a Spark
type raises {{UNSUPPORTED_NUMPY_ARRAY_SCALAR}}. The Rust-backed Python client
raises {{TypeError: Expected Column or scalar ...; got list}} for a list. Build
the array as PySpark does.
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