marchpure opened a new pull request #3549: [Carbondata-3643] Insert
array('')/array() into Struct<Array> column …
URL: https://github.com/apache/carbondata/pull/3549
…will result in array(null), which is inconsist with Parquet
Modification reason: Result is incorrect when Inserting Select From a
Parquet Table with a Struct with array('')/array(, The result shouldn't be
array(null), while parquet results in array('') or array().
Modification content: When the input value is Struct(""), the
StructParserImpl handle the EMPTY STRING
### Why is this PR needed?
### What changes were proposed in this PR?
### Does this PR introduce any user interface change?
- No
- Yes. (please explain the change and update document)
### Is any new testcase added?
- No
- Yes
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