tree bc9891064e84944a968ca9da4b05bfb48145dd31
parent 1b282efc9efc70d05957d00f6aa25edcfcef239e
author Dmitry Lychagin <dmitry.lychagin@couchbase.com> 1614716558 -0800
committer Dmitry Lychagin <dmitry.lychagin@couchbase.com> 1614722060 +0000

[NO ISSUE][COMP] CREATE FUNCTION IF NOT EXISTS improvements

- user model changes: no
- storage format changes: no
- interface changes: no

Details:
- Move IF NOT EXISTS modifier after function parameter list
  in CREATE FUNCTION
- Parser now prohibits IF NOT EXISTS with OR REPLACE in
  CREATE FUNCTION. Remove this check from QueryTranslator
- Add testcases and update documentation

Change-Id: Iddaab4f829574de47cb9baf42cc7def92429f2c8
Reviewed-on: https://asterix-gerrit.ics.uci.edu/c/asterixdb/+/10323
Integration-Tests: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Tested-by: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Reviewed-by: Dmitry Lychagin <dmitry.lychagin@couchbase.com>
Reviewed-by: Till Westmann <tillw@apache.org>