feat: Add nested Array literal support #2181
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Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@
## main #2181 +/- ##
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+ Coverage 56.12% 57.41% +1.28%
- Complexity 976 1296 +320
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Files 119 147 +28
Lines 11743 13418 +1675
Branches 2251 2349 +98
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+ Hits 6591 7704 +1113
- Misses 4012 4451 +439
- Partials 1140 1263 +123 ☔ View full report in Codecov by Sentry. 🚀 New features to boost your workflow:
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andygrove
reviewed
Sep 3, 2025
| @@ -761,8 +763,11 @@ object QueryPlanSerde extends Logging with CometExprShim { | |||
| // now supports only Array of primitive | |||
| (Seq(CometConf.SCAN_NATIVE_ICEBERG_COMPAT, CometConf.SCAN_NATIVE_DATAFUSION) | |||
| .contains(CometConf.COMET_NATIVE_SCAN_IMPL.get()) && dataType | |||
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CometConf.COMET_NATIVE_SCAN_IMPL.get() returns auto by default, so this logic would not get triggered in the default case?
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Thats a good point, for auto is it a way to figure out current scan impl?
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I think there is no way to know it in runtime, created PR #2295
andygrove
reviewed
Sep 3, 2025
| """ | ||
| |select 1 a | ||
| |""".stripMargin, | ||
| "select array(array(1, 2, null), array(), array(10), null) from tbl") |
|
Test failed because of #2321 |
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Depends on #2286 |
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Which issue does this PR close?
Closes #2157
.
Rationale for this change
What changes are included in this PR?
This update introduces support for nested ARRAY literals in the Comet query plan serialization logic. The changes include both code refactoring and enhanced test coverage.
Highlights
Nested ARRAY Literal Support:
The code now handles array literals containing other arrays (i.e., arrays of arrays), enabling use of multi-dimensional array literals in queries.
Refactored Serialization Logic:
Serialization of array literals (including primitive and nested arrays) is now handled by a new recursive helper function, makeListLiteral.
The logic for handling array types has been extracted from a large match-case block into this helper, improving maintainability and extensibility.
Improved Type Handling:
The logic now recognizes and correctly serializes arrays whose element type is itself an array.
Type checks and element conversions are clarified and improved.
Detailed Changes
Code (QueryPlanSerde.scala)