Changes prepared for minor release 1.27.5.0 (release candiate 0)

New features, functional improvements, and optimizations

1. Support for the new Query Supervisor (limits database resources available to database roles during a query). See documentation located here: README.md

• !257 (merged)
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• !294 (merged)
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2. Dockerized environment supports --load-snapshot/--dump-snapshot options backup/restore a HAF server (including hived): !282 (merged)
3. Optimization of hive.operation type conversion into textual format (improves backup/restore times): !292 (merged) . Right now by default hive.operation is converted into bytea literal (representing operation binary format common to blockchain storage). To use the legacy JSON-textual form, use the body column provided by hive.operations_view (also in app-specific operations view) or change your app to use the new body_binary column (this will improve performance).

• !292 (merged)
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4. New function available for calculating HivePower value: !287 (merged)
5. Complex HAF apps can now be built from multiple smaller apps: !277 (merged)

Bugfixes:

1. Fixed a constraint violation while processing data in Account Metadata State Provider (common Metadata Collector provided by HAF, next to be instantiated at HAF-app level): !274 (merged)
2. Eliminated hang of hived node while closing after earlier caught PostgreSQL related error: !278 (merged)
3. Community reported problem related to processing forks by the HAF server: !285 (merged)
4. Multiple app roles are allowed to create app-specific tables like also perform synchronization (simplifies and makes deployments much more secure):
   • !286 (merged)
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5. HAF functions will explicitly fail when app-specific table identifiers are too long: !295 (merged)