### Does this PR have any customer impact? No
### Type (Feature, Refactoring, Bugfix, DevOps, Testing, Perf, etc) Feature
### Does it involve schema level changes? (Table, Column, Index, UDF, etc level changes) Yes
### Are you introducing any new config? If yes, do you have tests with and without them being set? Yes, yes
### ChangeLog (Refer [Template](../oss/CHANGELOG.md))
### Description
Support sorting with collation.
We define new custom sort operators which compare operands using applicable collation string.
`<<<` is for ascending order.
`>>>` is for descending order.
Example:
`SELECT * from <collection> ORDER BY <value> USING <<<`
This will further be used for partitioning, grouping, and related comparisons.
----
#### AI description (iteration 1)
#### PR Classification
New feature: Support for collation in sort operations.
#### PR Summary
This pull request adds support for collation in sort operations within the database engine.
- `src/test/regress/expected/bson_dollar_ops_collation_tests_runtime.out`: Added multiple test cases to verify collation behavior with various sort and order by operations, including case sensitivity and numeric ordering.
<!-- GitOpsUserAgent=GitOps.Apps.Server.pullrequestcopilot -->
Related work items: #4014123
### Does this PR have any customer impact?
### Type (Feature, Refactoring, Bugfix, DevOps, Testing, Perf, etc)
### Does it involve schema level changes? (Table, Column, Index, UDF, etc level changes)
### Are you introducing any new config? If yes, do you have tests with and without them being set?
### ChangeLog (Refer [Template](../oss/CHANGELOG.md))
### Description
Support for pushdown of to PFE indexes
----
#### AI description (iteration 1)
#### PR Classification
New feature
#### PR Summary
This pull request adds support for pushdown operations to PFE indexes, enhancing query performance and index utilization.
- Added new functions in `sql/udfs/index_mgmt/bson_indexbounds_functions--0.102-0.sql` for BSON index bounds operations.
- Introduced new operators in `sql/operators/bson_btree_pfe_operators--0.102-0.sql` for BSON and BSON query comparisons.
- Updated `src/query/query_operator.c` to handle new index bounds operators and expressions.
- Added new type definitions in `sql/types/bsonindexbounds--0.102-0.sql` for BSON index bounds.
- Modified `src/metadata/metadata_cache.c` to include OIDs and functions for BSON index bounds types and operators.
<!-- GitOpsUserAgent=GitOps.Apps.Server.pullrequestcopilot -->
### Does this PR have any customer impact?
No
### Type (Feature, Refactoring, Bugfix, DevOps, Testing, Perf, etc)
Refactoring
### Does it involve schema level changes? (Table, Column, Index, UDF, etc level changes)
Yes
### Are you introducing any new config? If yes, do you have tests with and without them being set?
No
### Release Note (Refer [Template](../docs/release_notes/pgmongo_template.md))
### Description
Porting udfs into documentdb
----
#### AI description (iteration 1)
#### PR Classification
Code cleanup and feature enhancement.
#### PR Summary
This pull request continues the porting of UDFs into DocumentDB, updating and including various SQL files for better functionality and organization.
- Updated `documentdb--0.24-0.sql` to include new UDFs and operators, replacing old function references.
- Added new UDFs for query, projection, geospatial, aggregation, metadata, schema management, index management, CRUD commands, user management, schema validation, telemetry, TTL, vector search, extension version, diagnostic, and RBAC metadata.
- Removed outdated function definitions and replaced them with updated SQL includes.
### Does this PR have any customer impact?
No
### Type (Feature, Refactoring, Bugfix, DevOps, Testing, Perf, etc)
Refactoring
### Does it involve schema level changes? (Table, Column, Index, UDF, etc level changes)
Yes
### Are you introducing any new config? If yes, do you have tests with and without them being set?
No
### Release Note (Refer [Template](../docs/release_notes/pgmongo_template.md))
### Description
Start porting schemas for documentdb api.
Introducing API_SCHEMA_NAME_V2, API_SCHEMA_INTERNAL_NAME_V2, API_CATALOG_SCHEMA_NAME_V2
----
#### AI description (iteration 1)
#### PR Classification
Porting type/operator/schema into documentdb.
#### PR Summary
This pull request ports various types, operators, and schemas into documentdb as part of an ongoing effort.
- `pg_documentdb/sql/documentdb--0.24-0.sql`: Created multiple schemas and included various SQL files for query functions, operators, and metadata.
- `pg_documentdb/sql/operators/bson_dollar_operators--0.16-0.sql`: Updated operator definitions to use `__API_SCHEMA_INTERNAL_V2__`.
- `pgmongo/sql/operators/bson_dollar_negation_operators--1.15-1.sql` and `pg_documentdb/sql/operators/bson_dollar_negation_operators--0.16-0.sql`: Changed operator definitions to use `__API_SCHEMA_INTERNAL_V2__`.
- `Makefile.cflags`: Added checks for new schema variables `API_SCHEMA_NAME_V2`, `API_SCHEMA_INTERNAL_NAME_V2`, and `API_CATALOG_SCHEMA_NAME_V2`.
- `pg_documentdb/sql/schema/unique_shard_path_operator_class--0.24-0.sql`: Updated operator class definitions to use `__API_SCHEMA_INTERNAL_V2__`.
### Does this PR have any customer impact?
No
### Type (Feature, Refactoring, Bugfix, DevOps, Testing, Perf, etc)
Refactoring
### Does it involve schema level changes? (Table, Column, Index, UDF, etc level changes)
Yes
### Are you introducing any new config? If yes, do you have tests with and without them being set?
No
### Release Note (Refer [Template](../docs/release_notes/pgmongo_template.md))
### Description
Move type/operator/schema files from pg_helio_api -> pg_documentdb
Except udf files
----
#### AI description (iteration 1)
#### PR Classification
Code cleanup
#### PR Summary
This pull request moves type, operator, and schema files from the `pg_helio_api` directory to the `pg_documentdb` directory.
- Updated SQL include paths in multiple `pg_helio_api` SQL files to reference `pg_documentdb` directory.
- Modified `pgmongo` SQL files to include paths from `pg_documentdb` instead of `pg_helio_api`.
- Adjusted `validate_helio_extension_state.sh` script to account for new file paths.
- Updated `Makefile` in `pg_helio_api` to include the new directory structure.
- Changed include paths in `pg_documentdb_distributed` and `pg_helio_distributed` C source files to reflect the new directory structure.
Cornelius Boateng
Vinod Sridharan
Zinan Ren