delta/python-packages/sqlalchemy.git/lib/sqlalchemy/engine/characteristics.py, branch review/mike_bayer/tutorial20 github.com: zzzeek/sqlalchemy.git Create connection characteristics API; implement postgresql flags 2020-09-08T15:16:53+00:00 Mike Bayer mike_mp@zzzcomputing.com 2020-09-07T20:24:47+00:00 e3716012c535c0aeac2a8cc5a32609ed2d4197c1 Added support for PostgreSQL "readonly" and "deferrable" flags for all of psycopg2, asyncpg and pg8000 dialects. This takes advantage of a newly generalized version of the "isolation level" API to support other kinds of session attributes set via execution options that are reliably reset when connections are returned to the connection pool. Fixes: #5549 Change-Id: I0ad6d7a095e49d331618274c40ce75c76afdc7dd 
Added support for PostgreSQL "readonly" and "deferrable" flags for all of
psycopg2, asyncpg and pg8000 dialects.   This takes advantage of a newly
generalized version of the "isolation level" API to support other kinds of
session attributes set via execution options that are reliably reset
when connections are returned to the connection pool.

Fixes: #5549
Change-Id: I0ad6d7a095e49d331618274c40ce75c76afdc7dd