The following documentation comment has been logged on the website: Page: https://www.postgresql.org/docs/9.6/static/sql-select.html Description:
At the time, the documentation (here: https://www.postgresql.org/docs/9.6/static/sql-select.html) on using keyword says: Also, USING implies that only one of each pair of equivalent columns will be included in the join output, not both. It's not clear which column will be chosen in case of LEFT/RIGHT JOIN. At the time, my tests show that left column will be chosen in case of left join and right column will be chosen in case of right (looks logical). Is my understanding correct? Is it possible to cover this behavior by documentation? -- Sent via pgsql-docs mailing list (pgsql-docs@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-docs
