panbingkun opened a new pull request, #41564:
URL: https://github.com/apache/spark/pull/41564
### What changes were proposed in this pull request?
The pr aims to fix CSV Table Read Error with CharType(length) column.
### Why are the changes needed?
Fix bug as follows:
- CREATE TABLE csv_bug (name STRING, age INT, job CHAR(4)) USING CSV OPTIONS
('header' = 'true', 'sep' = ';') LOCATION
"/opt/spark/examples/src/main/resources/people.csv";
- SELECT * FROM csv_bug;
- ERROR Executor: Exception in task 0.0 in stage 0.0 (TID 0)
java.lang.IllegalArgumentException: requirement failed: requiredSchema
(struct<name:string,age:int,job:string>) should be the subset of dataSchema
(struct<name:string,age:int,job:string>).
### Does this PR introduce _any_ user-facing change?
No.
### How was this patch tested?
- Pass GA.
- Add new UT.
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