[SPARK-56456] Improve checkError() diagnostics#55317

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srielau wants to merge 3 commits intoapache:masterfrom

srielau:SPARK-56456-improve-checkError

Commits on Apr 13, 2026

[SPARK-56456] Improve checkError() diagnostics
srielau
committed
[SPARK-56456][FOLLOWUP] Address review: restore comment, align -1 guard, add tests
srielau
committed
[SPARK-56456][FOLLOWUP] Fix scalafmt formatting in Connect QueryTest
srielau
committed