Nikhil Sheoran created SPARK-48010:
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Summary: Avoid repeated calls to conf.resolver in resolveExpression
Key: SPARK-48010
URL: https://issues.apache.org/jira/browse/SPARK-48010
Project: Spark
Issue Type: Improvement
Components: SQL
Affects Versions: 3.4.3
Reporter: Nikhil Sheoran
Consider a view with a large number of columns (~1000s). When resolving this
view, looking at the flamegraph, observed repeated initializations of `conf` to
obtain the `resolver` for each column of the view.
This can be easily optimized to reuse the same resolver (obtained once) for the
various calls to `innerResolve` in `resolveExpression`.
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