Wan Kun created SPARK-42551:
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Summary: Support subexpression elimination in FilterExec
Key: SPARK-42551
URL: https://issues.apache.org/jira/browse/SPARK-42551
Project: Spark
Issue Type: Improvement
Components: SQL
Affects Versions: 3.3.2
Reporter: Wan Kun
Just like SPARK-33092, We can support subexpression elimination in FilterExec
in Whole-stage codegen.
For example:
{code:java}
SELECT * FROM (
SELECT v, v * v + 1 v1 from values(1) as t2(v)
) t
where v > 0 and v1 > 5 and v1 < 10
Codegen plan
{code:java}
*(1) Project [v#1, ((v#1 * v#1) + 1) AS v1#0]
+- *(1) Filter (((v#1 > 0) AND (((v#1 * v#1) + 1) > 5)) AND (((v#1 * v#1) + 1)
< 10))
+- *(1) LocalTableScan [v#1]
The subexpression will be execute twice times.
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