Timo Walther created FLINK-8277:
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Summary: Optimize code generation by using local references
Key: FLINK-8277
URL: https://issues.apache.org/jira/browse/FLINK-8277
Project: Flink
Issue Type: Improvement
Components: Table API & SQL
Reporter: Timo Walther
By default, Flink uses {{org.apache.calcite.rex.RexProgram#expandLocalRef}} to
remove local references which reverses the effect of common subexpression
elimination. For a more performant execution and smaller generated code we
should leverage common subexpressions.
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