westonpace commented on issue #15287:
URL: https://github.com/apache/arrow/issues/15287#issuecomment-1379600810
One thing to consider is that it is possible for the left and right side to
have a non-key column that has the same name. For example:
```
CREATE TABLE products (
id int,
region_id int,
description string,
);
CREATE TABLE regions (
id int,
description string
);
SELECT * FROM products JOIN regions ON id;
```
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