jonahgao commented on PR #7160:
URL:
https://github.com/apache/arrow-datafusion/pull/7160#issuecomment-1659457667
Perhaps we should consider scenarios where primary keys are defined multiple
times.
For example:
```sh
psql=> create table foo(
a int primary key,
b int,
c int,
primary key(b,c)
);
ERROR: multiple primary keys for table "foo" are not allowed
LINE 5: primary key(b,c)
```
It will fail in PostgreSQL.
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