07ARB opened a new pull request #26478: [SPARK-29853][SQL]lpad returning empty instead of NULL for empty pad … URL: https://github.com/apache/spark/pull/26478 ### What changes were proposed in this pull request? lpad returning NULL instead of empty for empty pad value. ### Why are the changes needed? Need to add check-point if padding string is empty and require length is greater then zero. ### Does this PR introduce any user-facing change? NO ### How was this patch tested? Old unit tests correct as per this jira.
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