HIVE-28262:Single column use MultiDelimitSerDe parse column error #5252
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What changes were proposed in this pull request?
modify LazyStruct#findIndexes function and LazyStruct#parseMultiDelimit function, change fields.length Conditional judgment:
I add an test for this fix:
Why are the changes needed?
If a table only have one column field with multidelimit,query this column data is error data.
When I use this data to do other operation(e.g cast use UDFToLong function),get result is NULL.
Does this PR introduce any user-facing change?
No
Is the change a dependency upgrade?
No
How was this patch tested?
test class: serde/src/test/org/apache/hadoop/hive/serde2/lazy/TestLazyStruct.java
test function: org.apache.hadoop.hive.serde2.lazy.TestLazyStruct#testParseMultiDelimit
test command: mvn test -Dtest=TestLazyStruct --pl serde