Sergey Nuyanzin created FLINK-36361:
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Summary: Do not use StringBuilder for EquivalentExprShuttle
Key: FLINK-36361
URL: https://issues.apache.org/jira/browse/FLINK-36361
Project: Flink
Issue Type: Bug
Components: Table SQL / Planner
Reporter: Sergey Nuyanzin
Assignee: Sergey Nuyanzin
Currently there is {{EquivalentExprShuttle}} where there is a map of
{{toString}} node to {{RelNode}}. In fact there is no need for toString which
is calculated each time with usage of {{StringBuilder}} under the hood. And
even more we faced one weird case where it consumes memory.
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