Aditya Goenka created HUDI-6483:
-----------------------------------
Summary: MERGE INTO should support schema evolution for partial
updates.
Key: HUDI-6483
URL: https://issues.apache.org/jira/browse/HUDI-6483
Project: Apache Hudi
Issue Type: Improvement
Components: spark-sql
Reporter: Aditya Goenka
Fix For: 0.15.0
Following code is example for doing MERGE INTO along with schema evolution
which is not yet supported by hudi. Currently, Hudi tries to use target table
schema during MERGE INTO.
Following code should be supported -
```
create table test_insert3 (
id int,
name string,
updated_at timestamp
) using hudi
options (
type = 'cow',
primaryKey = 'id',
preCombineField = 'updated_at'
) location 'file:///tmp/test_insert3';
merge into test_insert3 as target
using (
select 1 as id, 'c' as name, 1 as new_col, current_timestamp as updated_at
) source
on target.id = source.id
when matched then update set target.new_col = source.new_col
when not matched then insert *;
```
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