A long time ago, they were disabled, because the GIN code had not been
modified to work with file replication. Now with WAL replication, there's
no reason to not support them.

* docs: gpbackup new options -include-table -exclude-table

-Add new options
-Update AdminGuide

PR for 5X_STABLE
Will be ported to MAIN

* docs: gpbackup - fix typos

see commit 2a3d7742

PR for 5X_STABLE
Will be ported to MAIN

* docs: plcontainer logging and attribute updates.

-attribute names have changed for logging, and network
-the GUC log_min_messages controls the log level
-add note information about controlling container lifetime

PR for 5X_STABLE
Will be ported to MAIN

* docs: update for pl/container logging

* docs: plcontainer - udpates based on review comments.

* docs - plcontainer - review updates from dev. tracker stories

Add limitations
  -pl/container not supported when GPDB is run in Docker
  -multi-dimensional array not supported

Add ID max length 63 bytes
Clarify terminology
Update example output
Fix edits and typos

* docs: plcontainer - fix runtime-add example

* docs: pl/container does not support PL/R multi-dim. arrays

* docs: plcontainer - In Docker Images section, remove references to Pivotal.

The vacuum was causing trouble, see github issue #4298. And it seems pretty
pointless or unrelated to gpexpand, anyway.

- Continuation of previous general filespace removal commits

Author: C.J. Jameson <cjameson@pivotal.io>

Since persistent tables were removed, these were not used for anything.

Plenty remains, but this is a start.

Remove the concept of filespaces, revert tablespaces to work the same as
in upstream.

There is some leftovers in management tools. I don't know how to test all
that, and I was afraid of touching things I can't run. Also, we may need
to create replacements for some of those things on top of tablespaces, to
make the management of tablespaces easier, and it might be easier to modify
the existing tools than write them from scratch. (Yeah, you could always
look at the git history, but still.)

Per the discussion on gpdb-dev mailing list, the plan is to cherry-pick
commit 16d8e594 from PostgreSQL 9.2, to make it possible to have a
different path for a tablespace in the primary and its mirror. But that's
not included in this commit yet.

TODO: Make temp_tablespaces work.
TODO: Make pg_dump do something sensible, when dumping from a GPDB 5 cluster
that uses filespaces. Same with pg_upgrade.

Discussion: https://groups.google.com/a/greenplum.org/d/msg/gpdb-dev/sON4lraPEqg/v3lkM587BAAJ

* docs: updates to create function attribute execute on

* docs: review comment updates for CREATE FUNCTION

* docs - type SET DEFAULT ENCODING

* edits requested by david

* add gp-specific clauses to summary of greenplum features page

Now that we use the upstream implementation for window functions, the
'gp_enable_sequential_window_plans' and 'gp_idf_deduplicate' GUCs are no
longer.

PR for 5X_STABLE
Will be ported to MAIN

* docs: change GUC default: optimizer_join_arity_for_associativity_commutativity=18

* docs: GUC removed ZSTD (zstandard)  from gp_default_storage_options (added by mistake)

*  docs: pl/container updates - plcontainer command, configuration file

-removed experimental warning.
-replaced plcontainer command with new options.
-updated configuration file - changed element names, added setting element.
-updated default shared volume.

PR for 5X_STABLE
Will be ported to MAIN

* docs: pl/container - updates based on review comments.

* docs: pl/container - more updates based on additional review comments.

* docs: pl/container - minor edit

* docs: pl/container - another minor fix.

* docs - add info about greenplum database release versioning

* misc edits requested by david

* update subnav titles

* clarify that deprecated features removed only in major release

* docs: gpstop new option --host

* docs: gpstop - update update/clarify --host description based on review comments.

* docs: gpstop --host. updates based on review comments.

* docs: gpstop - added information on restoring segments after using --host.

* docs: gpstop --host. corrected name of utility to recover segments : gprecoverseg.

* docs - correct the example using --full and -d options

* avoid using --full and --schema-only together, do not prohibit

* clean up schema copy bullet point

* docs - review zstd doc additions, misc related edits

* modify ddl storage example 1 to use zstd

* docs - add note about MaxStartups to relevant utility cmds

* uses ...

* docs - persist resource group configuration

* recreate, not persist, the cgroup hierarchies

* configure service start cmds with preferred auto-start tool

* Doc edits for gptransfer --schema-only change

* Change header title; add xref

* --d -> -d

* remove extraneous comma

* changing -d behavior to match -t; making sentences parallel

PR for 5X_STABLE
Will be ported to MAIN

* docs - costing diffs between gporca/planner and RQ limits

* mention fallback

* RQs do not align/differentiate costs between planners

* Enhance hardening docs on trust and ident

* Format source. No content changes.

missed in earlier update.