Greengage DB 6.30.1 product release

Added support for Python 2 and 3 versions by modernizing the Python codebase

Updated PyGreSQL from 4.0 to 5.2.5

Added resource group support for parallel retrieve cursor sessions

Added reporting resource groups to the pg_stat_activity system view for segment backends

Added support for Ubuntu 24.04

Added the temp_tables_stat extension for monitoring temporary tables

Improved planner and optimizer stability by fixing ORCA issues related to distribution requests, redundant redistributions on joins, and nonexistent hash operator families

Prohibited unsupported skip-level correlated queries in the Postgres planner

Fixed resource group bypassing when using preferQueryMode=extended

Fixed Python runtime issues, including postmaster PID handling, legacy Python 2 usage in external web tables, deprecated Python modes, and syntax warnings

Fixed low-level code quality and warning issues, including errno, compareJsonbContainers(), tautological comparisons, gpmon, and others

Updated and actualized README files for supported Linux distributions

Fixed and reenabled key test suites, including minirepro, isolation2, gpload, and gpexpand

Improved test stability for multi-host, concourse, and extension test environments

Added make check for gpMgmt to the regression test suite

Improved portability and backward compatibility of the test infrastructure, including support for newer environments such as Perl 5.36

Fixed multiple Greengage SQL Dump workflow issues for 6.x, including unexpected failures and missing sqldump directories

Fixed command injection vulnerability in the SQL Dump workflow

Fixed CI failures related to Docker version issues and out-of-space errors

Improved artifact collection and workflow reliability on main branches

Updated reusable workflows and CI behavior, including always running ABI tests and Allure rendering

Optimized the Greengage 6 development image and related CI configuration

Ported Greengage 6 resource group tests to KVM