Merge 2.x to feature/maximus-m1 branch

[penghuo]

Check List

• New functionality includes testing.
  • All tests pass, including unit test, integration test and doctest
• New functionality has been documented.
  • New functionality has javadoc added
  • New functionality has user manual doc added
• Commits are signed per the DCO using --signoff

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.
For more information on following Developer Certificate of Origin and signing off your commits, please check here.

[codecov-commenter]

Codecov Report

Merging #979 (b286742) into feature/maximus-m1 (3a9d217) will decrease coverage by 35.19%.
The diff coverage is n/a.

@@                    Coverage Diff                    @@
##             feature/maximus-m1     #979       +/-   ##
=========================================================
- Coverage                 97.95%   62.76%   -35.20%     
=========================================================
  Files                       300       10      -290     
  Lines                      7784      658     -7126     
  Branches                    500      119      -381     
=========================================================
- Hits                       7625      413     -7212     
- Misses                      158      192       +34     
- Partials                      1       53       +52     

Flag	Coverage Δ
query-workbench	62.76% <ø> (?)
sql-engine	?

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
...ain/java/org/opensearch/sql/analysis/Analyzer.java
...opensearch/sql/planner/logical/LogicalPlanDSL.java
...ensearch/sql/planner/physical/ProjectOperator.java
...rc/main/java/org/opensearch/sql/storage/Table.java
...a/org/opensearch/sql/utils/MLCommonsConstants.java
...ava/org/opensearch/sql/utils/SystemIndexUtils.java
...ch/sql/opensearch/planner/physical/ADOperator.java
...rch/planner/physical/MLCommonsOperatorActions.java
...rg/opensearch/sql/ppl/config/PPLServiceConfig.java
...java/org/opensearch/sql/ppl/parser/AstBuilder.java
... and 300 more

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