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Posted to github@datafusion.apache.org by "andygrove (via GitHub)" <gi...@apache.org> on 2026/03/12 17:47:43 UTC

[I] [blog post] Spark compatibility testing [datafusion-comet]

andygrove opened a new issue, #3679:
URL: https://github.com/apache/datafusion-comet/issues/3679

   ### What is the problem the feature request solves?
   
   There have been some discussions around writing technical deep dive blog posts on the DataFusion blog. I would like to see if there is interest in a blog post focussing on Spark compatibility testing.
   
   Possible topics:
   
   - Challenges (different floating point implementation, regexp, unicode differences, date/time range differences)
   - Lessons learned from Fuzz testing approach
   - Lessons learned from agentic coding
   - Testing against multiple Spark versions
   - Shims
   - SQL-based testing, inspired by sqllogictest
   
   ### Describe the potential solution
   
   _No response_
   
   ### Additional context
   
   _No response_


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Re: [I] [blog post] Spark compatibility testing [datafusion-comet]

Posted by "andygrove (via GitHub)" <gi...@apache.org>.
andygrove closed issue #3679: [blog post] Spark compatibility testing
URL: https://github.com/apache/datafusion-comet/issues/3679


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