alamb commented on code in PR #20598:
URL: https://github.com/apache/datafusion/pull/20598#discussion_r2983948370


##########
datafusion/sqllogictest/README.md:
##########
@@ -75,24 +75,25 @@ RUST_LOG=debug cargo test --test sqllogictests -- ddl
 The sqllogictest runner can emit deterministic per-file elapsed timings to help
 identify slow test files.
 
-By default (`--timing-summary auto`), timing summary output is disabled in 
local
-TTY runs and shows a top-slowest summary in non-TTY/CI runs.
+Timing summary output is disabled by default and enabled with
+`--timing-summary` (or `SLT_TIMING_SUMMARY=1`).

Review Comment:
   ```suggestion
   `--timing-summary` (or `SLT_TIMING_SUMMARY=true`).
   ```
   
   I think this should be `SLT_TIMING_SUMMARY=true` as using this example will 
result in an error
   
   ```
   SLT_TIMING_SUMMARY=1 cargo test --profile=ci --test sqllogictests
       Finished `ci` profile [unoptimized] target(s) in 0.28s
        Running bin/sqllogictests.rs 
(target/ci/deps/sqllogictests-7e2a8cc6115b158a)
   error: invalid value '1' for '--timing-summary'
     [possible values: true, false]
   ```
   
   This works nicely
   
   ```shell
   SLT_TIMING_SUMMARY=true cargo test --profile=ci --test sqllogictests
   ```



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