Обсуждение: pgsql: Update obsolete sentence in README.parallel.

Update obsolete sentence in README.parallel.

Since 9.6, heavyweight locking is not an abstract and unhandled
concern of the parallel machinery, but rather something to which
we have a specific approach.

Branch
------
master

Details
-------
https://git.postgresql.org/pg/commitdiff/28e04155f17cabda7a18aee31d130aa10e25ee86

Modified Files
--------------
src/backend/access/transam/README.parallel | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)