On Tue, Apr 27, 2021 at 3:21 PM Bharath Rupireddy <bharath.rupireddyforpostg...@gmail.com> wrote: > > Hi, > > While reviewing [1], I found that the CREATE COLLATION doesn't throw an error > if duplicate options are specified, see [2] for testing a few cases on HEAD. > This may end up accepting some of the weird cases, see [2]. It's against > other option checking code in the server where the duplicate option is > detected and an error thrown if found one. Attached a patch doing that. I > chose to have the error message "option \"%s\" specified more than once" and > parser_errposition because that's kind of agreed in [3]. > > Thoughts? > > [1] > https://www.postgresql.org/message-id/CALj2ACWVd%3D-E6uG5AdHD0MvHY6e4mVzkapT%3DvLDnJJseGjaJLQ%40mail.gmail.com > > [2] > CREATE COLLATION coll_dup_chk (LC_COLLATE = "POSIX", LC_COLLATE = "NONSENSE", > LC_CTYPE = "POSIX"); -- ERROR > CREATE COLLATION coll_dup_chk (LC_COLLATE = "NONSENSE", LC_COLLATE = "POSIX", > LC_CTYPE = "POSIX"); -- OK but it's weird > CREATE COLLATION coll_dup_chk (LC_CTYPE = "POSIX", LC_CTYPE = "NONSENSE", > LC_COLLATE = "POSIX"); -- ERROR > CREATE COLLATION coll_dup_chk (LC_CTYPE = "NONSENSE", LC_CTYPE = "POSIX", > LC_COLLATE = "POSIX",); -- OK but it's weird > CREATE COLLATION coll_dup_chk (PROVIDER = icu, PROVIDER = NONSENSE, > LC_COLLATE = "POSIX", LC_CTYPE = "POSIX"); -- ERROR > CREATE COLLATION coll_dup_chk (PROVIDER = NONSENSE, PROVIDER = icu, > LC_COLLATE = "POSIX", LC_CTYPE = "POSIX"); -- OK but it's weird > CREATE COLLATION case_sensitive (LOCALE = '', LOCALE = "NONSENSE"); -- ERROR > CREATE COLLATION coll_dup_chk (LOCALE = "NONSENSE", LOCALE = ''); -- OK but > it's weird > CREATE COLLATION coll_dup_chk (DETERMINISTIC = TRUE, DETERMINISTIC = > NONSENSE, LOCALE = ''); -- ERROR > CREATE COLLATION coll_dup_chk (DETERMINISTIC = NONSENSE, DETERMINISTIC = > TRUE, LOCALE = ''); -- OK but it's weird > > [3] > https://www.postgresql.org/message-id/CALj2ACUa%3DZM8QtOLPCHc7%3DWgFrx9P6-AgKQs8cmKLvNCvu7arQ%40mail.gmail.com
+1 for fixing this issue, we have handled this error in other places. The patch does not apply on head, could you rebase the patch on head and post a new patch. Regards, Vignesh
