pgsql: Fix lockmode initialization for custom relation options - Mailing list pgsql-committers

Fix lockmode initialization for custom relation options

The code was enforcing AccessExclusiveLock for all custom relation
options, which is incorrect as the APIs allow a custom lock level to be
set.

While on it, fix a couple of inconsistencies in the tests and the README
of dummy_index_am.

Oversights in commit 773df88.

Discussion: https://postgr.es/m/20190925234152.GA2115@paquier.xyz

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/fbfa5664882c9b61428266e6fb0d48b0147c421a

Modified Files
--------------
src/backend/access/common/reloptions.c                  | 7 -------
src/test/modules/dummy_index_am/README                  | 1 +
src/test/modules/dummy_index_am/expected/reloptions.out | 4 +++-
src/test/modules/dummy_index_am/sql/reloptions.sql      | 1 +
4 files changed, 5 insertions(+), 8 deletions(-)