Dear BioMart users,
We are setting up a local database powered by BioMart in order to annotate our local data with the data of other marts. The problem is that the type of join that BioMart is performing between tables seems to be an inner join since BioMart solely outputs all the records that match in the two marts linked. My question is, if this is true, are you planning to add outer joins in order to get in addition all the unmatched results? In our case, if we want to annotate our database with another mart data, we would perform a left join to get all the matched records + all the unmatched records from our database. And in case you are planning to implement this, when do you predict that this implementation will be accessible for us, the BioMart users? This type of outputting the query results, i.e. to output both the matched and unmatched records from our database, is of highly interest in order to annotate BUT without losing information from the query because of the annotation process. Many thanks in advance. Please, do not hesitate to ask me for more information. Yours faithfully, Núria
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