Adam Lee

I will hold this PR before we got the fixing plan offline.

> @adam8157 this PR has been sitting for many months... please can you work with the required stakeholders to drive closure for the PR and report on what's the plan...

> Do you wish to create a github issue then in-place to track the problem and close this PR if this is not intended solution? There is an issue https://github.com/greenplum-db/gpdb/issues/11400,...

> @adam8157 just a reminder, pls take a look when you have time. Sorry, I was busy and missed this. This PR is exciting and helpful, at-ing the maintainers to...

This commit changed it to char, and it was by design. ``` commit 04fdd0a6f45112512cd743b9fc8114f1374b2107 Author: (Jerome)Junfeng Yang Date: Fri Mar 20 15:38:04 2020 +0800 Enable external table's error log to...

Oh, the full meta is stored in the foreign table catalog, is it? I'm fine if backup & restore would work in that way.

The planner always supports streaming aggregate and there are lots of cases, but the executor just did nothing special.

``` create table dqa_t1 (d int, i int, c char, dt date); insert into dqa_t1 select i%23, i%12, (i%10) || '', '2009-06-10'::date + ( (i%34) || ' days')::interval from generate_series(0,...

Can't we create an access method? I would recommend displaying the access method name if `isGPDB7000OrLater()`. ref: https://www.postgresql.org/docs/current/sql-create-access-method.html

I was suggesting displaying the AM name, like `heap`, `ao_row`, `ao_column`, or the name of any user-defined AM.