MaxGekk opened a new pull request, #42781:
URL: https://github.com/apache/spark/pull/42781
### What changes were proposed in this pull request?
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### Why are the changes needed?
To fix the issue demonstrated by the example:
```
$ spark-sql (default)> SELECT to_char(x'537061726b2053514c', CAST(NULL AS
STRING));
[INTERNAL_ERROR] The Spark SQL phase analysis failed with an internal error.
You hit a bug in Spark or the Spark plugins you use. Please, report this bug to
the corresponding communities or vendors, and provide the full stack trace.
```
### Does this PR introduce _any_ user-facing change?
No.
### How was this patch tested?
By running new test:
```
$ build/sbt "test:testOnly *.StringFunctionsSuite"
```
### Was this patch authored or co-authored using generative AI tooling?
No.
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