mrhhsg opened a new pull request, #65267:
URL: https://github.com/apache/doris/pull/65267
### What problem does this PR solve?
Issue Number: None
Problem Summary: Some array scalar functions only validated the first array
argument before type coercion. A bare empty array on the left side could
therefore hide the nested array element type carried by another argument,
allowing unsupported nested-array inputs to pass analysis and fail later in BE
execution. This change checks the argument that carries the unsupported
nested-array type before coercion for array_union, arrays_overlap,
array_position, array_remove, and countequal, so these cases fail during
analysis with clear type errors.
### Release note
Reject unsupported nested-array inputs to affected array functions during
analysis.
### Check List (For Author)
- Test:
- Unit Test: ./run-fe-ut.sh --run CheckExpressionLegalityTest
- Regression test: doris-local-regression --network 10.26.20.3/24 all -d
query_p0/sql_functions/array_functions -s test_array_nested_type_check
- Behavior changed: Yes. Unsupported nested-array inputs to the affected
array functions are rejected during analysis instead of reaching BE execution.
- Does this need documentation: No
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