Uros Stankovic created SPARK-48288:
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Summary: Add source data type to connector.Cast expression
Key: SPARK-48288
URL: https://issues.apache.org/jira/browse/SPARK-48288
Project: Spark
Issue Type: Improvement
Components: Spark Core
Affects Versions: 4.0.0
Reporter: Uros Stankovic
Currently,
V2ExpressionBuilder will build connector.Cast expression from catalyst.Cast
expression.
Catalyst cast have expression data type, but connector cast does not have it.
Since some casts are not allowed on external engine, we need to know source and
target data type, since we want finer granularity to block some unsupported
casts.
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