Github user hvanhovell commented on the issue: https://github.com/apache/spark/pull/14044 `LogicalPlan.resolve(...)` uses a linear search to resolve a column. This is pretty bad if you are trying to lookup 4000 columns 4 times (filter, project, aggregate, sort): 4000 * (4000 / 2) * 4 = 32.000.000 lookups.
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