[M] Change in asterixdb[lumina]: [ASTERIXDB-3766][COMP] Fix NPE with LOJ ON condition having NOT EXISTS

[AsterixDB Code Review <do...@asterix-gerrit.ics.uci.edu>]

From Ali Alsuliman <al...@gmail.com>:

Attention is currently required from: Ali Alsuliman.

Hello Anon. E. Moose #1000171, Jenkins, 

I'd like you to reexamine a change. Please visit

    https://asterix-gerrit.ics.uci.edu/c/asterixdb/+/21174?usp=email

to look at the new patch set (#2).

The following approvals got outdated and were removed:
Contrib-2 by Anon. E. Moose #1000171, Integration-Tests+1 by Jenkins, Verified+1 by Jenkins


Change subject: [ASTERIXDB-3766][COMP] Fix NPE with LOJ ON condition having NOT EXISTS
......................................................................

[ASTERIXDB-3766][COMP] Fix NPE with LOJ ON condition having NOT EXISTS

- user model changes: no
- storage format changes: no
- interface changes: no

Details:
Substitute decor variables that get assigned to new variables
in the nested plan of the group-by and not just the root op
of the nested plan.

Ext-ref: MB-71638

Change-Id: I8212c42c9c4f83851a9274840a36700524413a4d
---
A asterixdb/asterix-app/src/test/resources/optimizerts/queries/leftouterjoin/not_exists.sqlpp
A asterixdb/asterix-app/src/test/resources/optimizerts/results/leftouterjoin/not_exists.plan
M hyracks-fullstack/algebricks/algebricks-rewriter/src/main/java/org/apache/hyracks/algebricks/rewriter/rules/AbstractIntroduceGroupByCombinerRule.java
3 files changed, 148 insertions(+), 2 deletions(-)


  git pull ssh://asterix-gerrit.ics.uci.edu:29418/asterixdb refs/changes/74/21174/2
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Gerrit-MessageType: newpatchset
Gerrit-Project: asterixdb
Gerrit-Branch: lumina
Gerrit-Change-Id: I8212c42c9c4f83851a9274840a36700524413a4d
Gerrit-Change-Number: 21174
Gerrit-PatchSet: 2
Gerrit-Owner: Ali Alsuliman <al...@gmail.com>
Gerrit-Reviewer: Anon. E. Moose #1000171
Gerrit-Reviewer: Jenkins <je...@fulliautomatix.ics.uci.edu>
Gerrit-Attention: Ali Alsuliman <al...@gmail.com>