bithw1 opened a new issue, #11996:
URL: https://github.com/apache/hudi/issues/11996
Hi,
I am using Hudi 0.15.0,
In the spark-sql cli, I do the following things. I insert two records with
two insert clause, I think there will be two records（with same id）,but only one
is left there, looks Hudi does upsert instead of insert here,
The default behavior of insert into is insert, so I don't understand how
upsert happens here
```
CREATE TABLE IF NOT EXISTS hudi_cow_19 (
a INT,
b INT,
c INT
)
USING hudi
tblproperties(
type='cow',
primaryKey='a',
hoodie.datasource.write.precombine.field='c',
hoodie.merge.allow.duplicate.on.inserts='true'
);
insert into hudi_cow_19 select 1,1,1; --- insert the first record
select * from hudi_cow_19;
insert into hudi_cow_19 select 1,10,10; --- insert the second record with
same key as the first one
select * from hudi_cow_19;
```
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