* docs: gptransfer - add sha-256 option for --validate option

* update based on review comments.
--changed option value from sha-256 to sha256
--move GPDB 4.3.x information to the notes section.

* Update/clarify based on review comments.
--clarified GPDB 4.3.x pgcrypto information.
--clarified --validate options.

* docs: minor update

* Conditionalizing the pivotal reference

* Extending conditionalized phrase to cover 4.3 stuff.

Explain analyze with explain_memory_verbosity set to 'detail' or 'summary' will show total memory used accross slices

We will be adding an extra line detailing total memory used across slices to explain analyze. This will help us in
profiling memory usage from TPC-DS benchmark.

```
(slice0)    Executor memory: 322K bytes.  Peak memory: 11783K bytes.  Vmem reserved: 12288K bytes.
   (slice1)    Executor memory: 8375K bytes avg x 3 workers, 8375K bytes max (seg0).
  Peak memory: 9488K bytes avg x 3 workers, 9488K bytes max (seg0).  Vmem reserved: 9216K bytes avg x 3 workers, 9216K bytes max (seg0).
 Total memory used across slices: 40247K  bytes
 Statement statistics:
   Memory used: 128000K bytes
```
Signed-off-by: NSambitesh Dash <sdash@pivotal.io>

* docs: create table- fixed default storage options information
default storage options can be set for system, database, user.

* Small edit to keep it in line with the 4.3.x commit.

Adding sha256 as an additional validation method since md5 is not
supported with FIPS mode enabled. Sha256 in the database requires
pgcrypto so we check if the source and destination system have pgcrypto
installed.
Signed-off-by: NChris Hajas <chajas@pivotal.io>

* resgroup: provide helper function to wakeup a proc.
* resgroup: provide helper function to check resWaiting.
* resgroup: refine the logic in ResGroupWaitCancel().
* resgroup: error out in ResGroupHashFind() directly.
* resgroup: error out in ResGroupHashRemove() directly.
* resgroup: add an arg `grant` in wakeupSlots().
* resgroup: move resWaiting updates into WaitQueue helper funcs.
* resgroup: cleanup the duplicate wakeup logic in ResGroupSlotRelease().
* resgroup: fix typo in function name groupAssignChunks().
* resgroup: rename groupAssignChunks() to groupRebalanceQuota().
* resgroup: polish comments for groupApplyMemCaps().
* resgroup: add comments for ResGroup{Caps,Opts}.
* resgroup: cleanup obsolete declarations in resgroup.h
* resgroup: use int32 instead of uint32 for self->memUsage.
* resgroup: correct the slot cleanup in ResGroupWaitCancel().
* resgroup: do not error out in transaction callbacks.

These tables seem dead and were only used before 4.0 era, hence removing them
now from catalog.

The runaway query TINC tests occasionally encounter issues where a
gpstop -ar is not successfull because of open connections. This commit
ensures that at the least gpstop will always restart gpdb.
Signed-off-by: NEkta Khanna <ekhanna@pivotal.io>

This reverts commit e449b1e0.

The NetBackup server has been failing in the first backup run after the
client is set up. We have not been able to discover the cause yet.
We are adding a dummy test where we don't check the return code so that
the rest of the tests will pass.
Signed-off-by: NChris Hajas <chajas@pivotal.io>

GPOS using GPDB for memory allocation is still a feature hidden behind a
GUC and requires more performance testing to be considered for the
default allocation behavior of GPOS. For now it can be ignored from
determing if a build of GPDB is release worthy

configure requires libcurl when pxf is enabled, it's not needed
for resource group regression tests, so disable it.

Previously every resource group has its own slot pool, each with size of 'MaxConnection'.
In order to reduce memory usage, implement a slot pool shared by all resource groups.

In addition, free slots in the slot pool are organized as a free list to optimize alloc/free
operations.

functions

In copyFuncs(), the fallthrough for SpecialJoinInfo was unintentionally
done as a part of subselect merge.  This commit fixes that along with
adding support for new fields in copyFuncs(), outFunc() and equalFunc()

[Ref #151491231]
Signed-off-by: NDhanashree Kashid <dkashid@pivotal.io>

Previously this test's result and plan was wrong. Now, Orca is fixed to
produce a valid plan along with the correct result.

Bump Orca version to 2.46.3

The glob syntax used to validate filenames for segment dump filenames
in the "old" backup format is only correct for single-digit dbids, as
it assumes the use of regex syntax that glob doesn't actually support.

This commit modifies get_filename_for_content to glob for all dump
files present and then explicitly match the expected filenames with a
regular expression.

It also modifies generate_filename to account for files created on a
standby master, which was not correctly handled previously.

Some environment variables passed through the pipeline YAML were not
being passed to the test run (e.g. WITH_MIRRORS=false). Removing the
full login flag of su fixes the issue.

This should speed up the tests a bit, since they are currently spending a significant amount of time in createdb statements.

* Enable PXF by default for GPDB builds

* Disable pxf wherever libcurl is disabled

- instead of trying to keep GPDB readme in sync with GPORCA readme, just refer to it

- fixes cd path
- removes macOS warning that is not currently an issue
- treats comment like other readme comments

After 7e268107 started seeing warnings like
------------------
cdbgroup.c:1478:68: warning: expression which evaluates to zero treated as a null pointer constant of type 'List *' (aka 'struct List *') [-Wnon-literal-null-conversion]
                result_plan = (Plan*)make_motion_gather_to_QE(root, result_plan, false);
                                                                                 ^~~~~
------------------

After commit 1822c826 started seeing bunch of
warnings like
-------------------------------------------
memaccounting.c:247:1: warning: no previous prototype for function 'MemoryAccounting_DeclareDone' [-Wmissing-prototypes]
MemoryAccounting_DeclareDone()
^
../../../../src/include/utils/memaccounting.h:238:1: note: this declaration is not a prototype; add 'void' to make it a prototype for a zero-parameter function
MemoryAccounting_DeclareDone();
^
                             void
memaccounting.c:263:1: warning: no previous prototype for function 'MemoryAccounting_RequestQuotaIncrease' [-Wmissing-prototypes]
MemoryAccounting_RequestQuotaIncrease()
^
../../../../src/include/utils/memaccounting.h:241:1: note: this declaration is not a prototype; add 'void' to make it a prototype for a zero-parameter function
MemoryAccounting_RequestQuotaIncrease();
^
                                      void
2 warnings generated.
ext_alloc.c:35:1: warning: no previous prototype for function 'Ext_OptimizerAlloc' [-Wmissing-prototypes]
Ext_OptimizerAlloc(size_t size)
^
ext_alloc.c:50:17: warning: unused variable 'account' [-Wunused-variable]
        MemoryAccount *account = MemoryAccounting_ConvertIdToAccount(ActiveMemoryAccountId);
                       ^
ext_alloc.c:48:1: warning: no previous prototype for function 'Ext_OptimizerFree' [-Wmissing-prototypes]
Ext_OptimizerFree(void *ptr)
^
ext_alloc.c:59:1: warning: no previous prototype for function 'GetOptimizerOutstandingMemoryBalance' [-Wmissing-prototypes]
GetOptimizerOutstandingMemoryBalance()
^
-------------------------------------------

As part of commit efed2fcc new walrep state was
added 'n' (not-in-sync). The toolkit function gp_pgdatabase__() needs to be
modified as well to check for that state.

Original code not using #defines but direct characters like 's', 'c' makes it
very tricky find stuff in code. Hopefully, future chnages would be easy to spot
and make.

QE detach resource group slot at the end of transaction, the
last QE of the slot release the slot, and release the overused
memory if resource group config has been changed.