[SPARK-42846][SQL] Remove error condition _LEGACY_ERROR_TEMP_2011

[ivanjevtic-db]

What changes were proposed in this pull request?

Removed error condition _LEGACY_ERROR_TEMP_2011, removed dataTypeUnexpectedError, typeUnsupportedError, and replaced them with SparkException.internalError.

Why are the changes needed?

It is impossible to trigger the error from user space.
Here I changed dataTypeUnexpectedError to internalError, since typeSoFar argument will always be either:

• NullType if this is the first row or
• Some type which is returned by the inferField function(which is a valid type).

Here I changed typeUnsupportedError to internalError, since:

• in this function call, the exception will be caught and
• in this function call, a valid desiredType will always be passed.

Here and here I changed dataTypeUnexpectedError to internalError, since there is a type signature here which prevents child.dataType from being unexpected type.

Does this PR introduce any user-facing change?

No.

How was this patch tested?

Build passing.

Was this patch authored or co-authored using generative AI tooling?

No.

[MaxGekk]

Could you update PR's title and description, and replace error class by error condition. See #48027

[MaxGekk]

@ivanjevtic-db Do you have an account at OSS JIRA? If so, please, leave some comment in https://issues.apache.org/jira/browse/SPARK-42846 otherwise submit request:

[ivanjevtic-db]

I requested, will add comment when I get access.

[MaxGekk]

+1, LGTM. Merging to master.
Thank you, @ivanjevtic-db.

[MaxGekk]

@ivanjevtic-db Congratulations with your first contribution to Apache Spark!