On 3/7/18, Mark Wagner <m...@google.com> wrote: > > e.g. both are accepted > > CREATE TABLE foo(_id primary key, x, y, unique(x), unique(y)); > CREATE TABLE foo(_id primary key, x, y, unique(x) unique(y)); > > Just curious if this is some historical artifact or if there's some > difference between the two that I'm not aware of.
This appears to be an historical artifact. A quick spot-check shows that both forms are accepted and appear to work going back to SQLite version 3.0.0 (2004-06-18). But this is not something that has been part of our test suite, so you should strive to use only the first (correct) form. I would fix this parser problem, except there are literally over a trillion SQLite database files in circulation, and even if only 0.001% of those use the incorrect second form, that still means millions of database files out there that would break if we "fix" it. Hence, I won't document the second form as valid syntax, but I will add test cases to make sure the second form continues to be accepted, to ensure future compatibility. -- D. Richard Hipp d...@sqlite.org _______________________________________________ sqlite-users mailing list sqlite-users@mailinglists.sqlite.org http://mailinglists.sqlite.org/cgi-bin/mailman/listinfo/sqlite-users
