* docs - resource group cpuset feature

* alter and create resource group sgml ref page updates

* gp_resource_group_cpu_limit applies to both CPU alloc modes

* add cpuset usage considerations

* restore ... fail, not backup

* misc edits, move note

 The hard-coded flag is not correct for all cases.

- Add mirrors with and without standby, and ensure that the host
  assignment is identical between the two.
- Add mirrors, then kill one, and ensure that gprecoverseg operates
  correctly on the newly added mirror.
Co-authored-by: NNadeem Ghani <nghani@pivotal.io>
Co-authored-by: NJacob Champion <pchampion@pivotal.io>

* docs - update GUC optimizer_analyze_root_partition

-change default to on
-update description

* docs - optimizer_analyze_root_partition, fix typo

No hash was created for the new numeric format when it is a
`NumericShort`. This commit resolves the issue.

For a while there were several jobs that were behind the nightly
trigger.  This necessitated some logic about including the
nightly-trigger resource if any of a number of conditions were met.  At
the time of this commit, the only job that is using the resourse is an
AIX job.  Therefore the inclusion of the nightly-trigger resource will
match the conditions that include the only job that requires that
resource.  This elimnates the "resource not used" error that can be seen
when setting a development version of the pipeline that does not include
the AIX job.
Authored-by: NJim Doty <jdoty@pivotal.io>

When cloning a fresh copy of GPDB, running through the documented make
process, and then running the make target for the demo cluster, there
are three files that get generated. This commit adds those files to the
.gitignore files in their respective directories.
Authored-by: NJim Doty <jdoty@pivotal.io>

* docs - update GUC gp_ignore_error_table
-change set classification from system to session
-clarify INTO ERROR TABLE clause is not used.

* docs - update GUC gp_ignore_error_table - minor edits

For long running commands such as gpinitstandby with a large master data
directory, the server takes a long time. Therefore, there is no acitivity from
the client to the server. If the ClientAliveInterval is set, then the server
reports a timeout after ClientAliveInterval seconds.

Setting a ServerAliveInterval value less than the ClientAliveInterval interval
forces the client to send a Null message to the server.  Hence, avoiding the
timeout.
Co-authored-by: NJamie McAtamney <jmcatamney@pivotal.io>
Co-authored-by: NShoaib Lari <slari@pivotal.io>

* docs - gpbackup ddboost plugin - add replication feature

* docs - gpbackup ddboost plugin - fix typos

A gate job is added for Release Candidate to make sure that all the
release candidate jobs passed for gpdb_src and bin_gpdb for centos6,
centos7 and sles11 platform.

The Release_Candidate job verifies that the commit SHA of gpdb_src and
all the bin_gpdb resources are the same. If the versions don't match,
the job will fail.

The bin_gpdb_[platform]_rc resources are put to a stable builds bucket
so that they can be consumed by integration and components pipelines
Co-authored-by: NAlexandra Wang <lewang@pivotal.io>
Co-authored-by: NKris Macoskey <kmacoskey@pivotal.io>
Co-authored-by: NTrevor Yacovone <tyacovone@pivotal.io>

We have added a test case to verify that the mirror configuration generated by
gpaddmirrors with the `-s` option is indeed spread over different hosts for each
of the primaries.
Co-authored-by: NJim Doty <jdoty@pivotal.io>
Co-authored-by: NJamie McAtamney <jmcatamney@pivotal.io>
Co-authored-by: NNadeem Ghani <nghani@pivotal.io>
Co-authored-by: NKevin Yeap <kyeap@pivotal.io>
Co-authored-by: NShoaib Lari <slari@pivotal.io>

Follow src/pl/plpython/README.md to see how to build
 and use plpython3u on GPDB.
Co-authored-by: NYandong Yao <yyao@pivotal.io>

Gpperfmon table rows_out queries_history shows zero values under column "rows_out",
even though they returned several rows as output.

This fix will decrease the possibility of occurance of this bug.
But it is still possible due to gpperfmon harvest mode.

1, pass external table encoding to copy's options, then set
cstate->file_encoding to it, for reading and writing.

2, after the merge, copy state doesn't have a member of client encoding,
which used to set to the target encoding, get the converted data as a
client, now passes the file encoding (from copy options) to convert
directly.

gppc.c: In function ‘TFGetFuncExpr’:
gppc.c:1255:3: error: implicit declaration of function ‘exprType’ [-Werror=implicit-function-declaration]
   exprType(list_nth(fexpr->args, argno)) != typid)
   ^~~~~~~~

* Add start_ignore and end_ignore around all gp_inject_fault loads

This commit pulls in the latest tzdata from Postgres 11. We
intentionally left out comment changes to
`src/backend/utils/adt/datetime.c` because it's not applicable (yet).

> DST law changes in North Korea.  Redefinition of "daylight savings" in
> Ireland, as well as for some past years in Namibia and Czechoslovakia.
> Additional historical corrections for Czechoslovakia.
>
> With this change, the IANA database models Irish timekeeping as following
> "standard time" in summer, and "daylight savings" in winter, so that the
> daylight savings offset is one hour behind standard time not one hour
> ahead.  This does not change their UTC offset (+1:00 in summer, 0:00 in
> winter) nor their timezone abbreviations (IST in summer, GMT in winter),
> though now "IST" is more correctly read as "Irish Standard Time" not "Irish
> Summer Time".  However, the "is_dst" column in the pg_timezone_names view
> will now be true in winter and false in summer for the Europe/Dublin zone.
>
> Similar changes were made for Namibia between 1994 and 2017, and for
> Czechoslovakia between 1946 and 1947.
>
> So far as I can find, no Postgres internal logic cares about which way
> tm_isdst is reported; in particular, since commit b2cbced9 we do not
> rely on it to decide how to interpret ambiguous timestamps during DST
> transitions.  So I don't think this change will affect any Postgres
> behavior other than the timezone-view outputs.
>
> Discussion: https://postgr.es/m/30996.1525445902@sss.pgh.pa.us
(cherry picked from commit 234bb985)
Co-authored-by: NJesse Zhang <sbjesse@gmail.com>
Co-authored-by: NTaylor Vesely <tvesely@pivotal.io>

The non-cosmetic changes involve teaching the "zic" tzdata compiler about
negative DST.  While I'm not currently intending that we start using
negative-DST data right away, it seems possible that somebody would try
to use our copy of zic with bleeding-edge IANA data.  So we'd better be
out in front of this change code-wise, even though it doesn't matter for
the data file we're shipping.

Discussion: https://postgr.es/m/30996.1525445902@sss.pgh.pa.us
(cherry picked from commit b45f6613)

DST law changes in Palestine and Antarctica (Casey Station).  Historical
corrections for Portugal and its colonies, as well as Enderbury, Jamaica,
Turks & Caicos Islands, and Uruguay.

(cherry picked from commit df629586)

This should have been part of commit
f590dc94 but we forgot. Now remove them
for good.
Co-authored-by: NTaylor Vesely <tvesely@pivotal.io>

`SHOW memory_spill_ratio` will always display 20 when it's the first
query in a connection (if you run this query in psql and pressed TAB
when entering the command then the implicit queries ran by the tab
completion function will be the first), the root cause is that SHOW
command will be bypassed in resgroup, so the bound resgroup will not be
assigned, and the resgroup's settings will not be loaded.

To display the proper value in this case we will also load the resgroup
settings even for bypassed queries.

Before:
     qp_functions             ... ok (76.24 sec)  (diff:0.06 sec)
     qp_gist_indexes4         ... ok (88.46 sec)  (diff:0.07 sec)
     qp_with_clause           ... ok (130.70 sec)  (diff:0.32 sec)

After:
     qp_functions             ... ok (4.49 sec)  (diff:0.06 sec)
     qp_gist_indexes4         ... ok (16.18 sec)  (diff:0.06 sec)
     qp_with_clause           ... ok (54.41 sec)  (diff:0.30 sec)

* docs - misc updates to gptransfer

- conref from best practices to admin guide
- qualify use for migration to diff number of segments
- misc edits

* conditionalize

* docs -draft update for migrating with gpcopy

* docs - migrating w/ gpcopy - updated ditamap

* add 'pivotal' condition

* some edits, additions, reorg

* removing ssh as a requirement (per comment on related PR)

* Clarifying that same-cluster copies aren't supported

* 4.3.16 -> 4.3.26

* replace --truncate with --truncate-source-after

* add note to start clusters in restricted mode

* add note about md5 validation when migrating between major version

* add pg_dump, pg_dumpall, psql dependencies in prerequisites section

* add info about actual free space needed for migration

* updating discussion of free space calculation

* updating to use new gpcopy option names

* more updates to clarify migration proc

* removing contentious statement about indexing (not present in main docs); adding resource groups to list of objects copied

* removing note about md5xor not working for version migration

* add note regarding validation with --append

* add note to install client package to get gpcopy dependencies

* removed --no-compression info as that's the default for same-host copies; relocated basic migration instructions

* replacing error section with reviewed info from ref page

* updating migration topics to use procedure format

* adding some post-migration steps for gpcopy

* address more feedback from brian; reorganize migration steps a bit; add general post-migration instructions from the relnotes

The return value of tzparse() has changed as of commit b749790a, but the
corresponding change to the tzparse() function in pg_load_tz() was never made.
As a result, under certain circumstances the server might pick a bogus
timezone.

For semi join queries if the constraints can eliminate the scanned relations,
the resulting relation should be marked as a dummy and the join using it should
be a dummy join.

The only change in the tarball is that we have removed the libraries and
header files for ddboost. These have already been removed for centos for
some time.
Co-authored-by: NChris Hajas <chajas@pivotal.io>
Co-authored-by: NKaren Huddleston <khuddleston@pivotal.io>

We have added a unit test for gpaddmirrors when the mirror data directories are
provided interactively.
Co-authored-by: NNadeem Ghani <nghani@pivotal.io>
Co-authored-by: NShoaib Lari <slari@pivotal.io>

Cpu usage of cpuset groups should also be displayed in
gp_toolkit.gp_resgroup_status.