emilk opened a new pull request, #24322:
URL: https://github.com/apache/datafusion/pull/24322

   ## Which issue does this PR close?
   
   - Part of #18467
   - Follow-up to #24066
   
   ## Rationale for this change
   
   More `allow`-by-default clippy lints that simplify code, catch bugs, or 
improve performance.
   Every lint here was verified to be outside the default-warn groups, so none 
is a no-op.
   
   ## What changes are included in this PR?
   
   **One commit per lint, including its fixes**, so any single lint can be 
reverted on its own.
   The first commit is the exception: 19 lints that had zero hits and need no 
code changes.
   
   Two real bugs fell out of `literal_string_with_formatting_args`, where a 
`{placeholder}` was
   printed verbatim instead of interpolated:
   * `benchmarks/src/nlj.rs`: `"NLJ benchmark Q{query_id} failed…".to_string()`
   * `parquet_advanced_index.rs`: `.expect("metadata for file not found: 
{filename}")`
   
   `fallible_impl_from` also flagged that `From<protobuf::Constraint> for 
Constraint` panics on a
   message with an unset `constraint_mode`. Fixing that needs a breaking change 
to `TryFrom`, so it
   is only marked with `#[expect]` here.
   
   ## Are these changes tested?
   
   Covered by existing tests plus the clippy CI job. I also ran the extended 
test suite locally.
   
   ## Are there any user-facing changes?
   
   One non-breaking signature change: `format_human_display` and a few private 
helpers now take `T`
   instead of `Option<T>` (`clippy::single_option_map`). No public API changes.
   


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