How does linq decide between inner & outer joins

Posted by user287795 on Stack Overflow See other posts from Stack Overflow or by user287795
Published on 2010-03-27T07:28:51Z Indexed on 2010/03/27 7:33 UTC
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linq-to-sql

Hi

Usually linq is using an left outer join for its queries but on some cases it decides to use inner join instead. I have a situation where that decision results in wrong results since the second table doesn't always have suitable records and that removes the records from the first table. I'm using a linqdatasource over a dbml where the relevant tables are identical but one holds historical records removed from the first. both have the same primary key. and I'm using a dataloadoption to load both tables at once with out round trips.

Would you explain why linq decided to use an inner join here?

Thanks

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