Sergey Nuyanzin created FLINK-41464:
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Summary: JavaCodeSplitter is slow for large generated code
Key: FLINK-41464
URL: https://issues.apache.org/jira/browse/FLINK-41464
Project: Flink
Issue Type: Improvement
Components: Table SQL / Runtime
Reporter: Sergey Nuyanzin
Assignee: Sergey Nuyanzin
The Java code splitter rewrites generated code with ANTLR's
TokenStreamRewriter. Each getText call reprocesses all recorded edits, and that
processing is quadratic in the number of edits. Large generated classes produce
many edits, one per field reference for example, and getText is called many
times.
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