feat: add support for unix_date expression#3141
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andygrove merged 2 commits intoapache:mainfrom Jan 16, 2026
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Implements native Comet support for Spark's unix_date function, which converts a date to the number of days since Unix epoch (1970-01-01). Since dates are internally stored as days since epoch (i32), this is implemented as a cast from Date32 to Int32. Closes apache#3097 Co-Authored-By: Claude Opus 4.5 <[email protected]>
Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@
## main #3141 +/- ##
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+ Coverage 56.12% 59.89% +3.76%
- Complexity 976 1414 +438
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Files 119 168 +49
Lines 11743 15596 +3853
Branches 2251 2589 +338
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+ Hits 6591 9341 +2750
- Misses 4012 4946 +934
- Partials 1140 1309 +169 ☔ View full report in Codecov by Sentry. 🚀 New features to boost your workflow:
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comphead
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Thanks @andygrove what about fuzz testing?
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The test does use the fuzz data generator: test("unix_date") {
val r = new Random(42)
val schema = StructType(Seq(StructField("c0", DataTypes.DateType, true)))
val df = FuzzDataGenerator.generateDataFrame(r, spark, schema, 1000, DataGenOptions()) |
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Summary
unix_datefunctionTest Plan
Closes #3097