[jira] [Updated] (SPARK-58931) Reject negative randstr length during analysis

["Uroš Bojanić (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-58931?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Uroš Bojanić updated SPARK-58931:
---------------------------------
    Affects Version/s: 4.4.0
                           (was: 5.0.0)

> Reject negative randstr length during analysis
> ----------------------------------------------
>
>                 Key: SPARK-58931
>                 URL: https://issues.apache.org/jira/browse/SPARK-58931
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 4.4.0
>            Reporter: Uroš Bojanić
>            Priority: Major
>
> `randstr(length[, seed])` requires a non-negative `length`, but that guard currently lives only on the execution paths (`RandStr.lengthInteger()`, called from interpreted eval and codegen), so a negative constant `length` is not rejected until the query executes.
> This moves the check into `RandStr.checkInputDataTypes()` so it is enforced during Catalyst analysis, reusing the existing `INVALID_PARAMETER_VALUE.LENGTH` error. As a result, `randstr` with a negative constant `length` now fails during analysis instead of at execution. The error itself is unchanged (same `SparkRuntimeException` and error class); only the phase at which it is raised changes. Queries with a valid (non-negative) `length` are unaffected.



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