Milan Stefanovic created SPARK-57243:
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Summary: Wrap IsNull and IsNotNull in brackets for V2 SQL builder
Key: SPARK-57243
URL: https://issues.apache.org/jira/browse/SPARK-57243
Project: Spark
Issue Type: Improvement
Components: Spark Core
Affects Versions: 4.2.0
Reporter: Milan Stefanovic
Right now IsNull is pushed without brackets, so if we were to have expression
such as:
IsNull(EqualTo(a, b)) it would be pushed down as `a=b IS NULL`.
This is error prone as it depends on operator precedence/parser of the dialect.
We should make it more safe by pushing it down as `(a=b) IS NULL`
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