PG-2795 Clean up major upgrade scenarios - #186
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comments only, rendered task lists unchanged. removes the commented_plpython and commented_llvm knobs that only existed to reproduce them.
the RHEL dev package switch went away with 18 (common-dev is in the rpm list). drops the dev_switch_active knob.
…majors every other major lists percona-postgresql-common-dev in the TO side deb list, pg-15 had server-dev-all. the tests skip the dev package anyway (test_bvt). drops the dev_pkg_deb knob.
14/15/16/psp-16 kept directory listings, pg_lsclusters dumps, a one minute pause and an ignore_errors version print around the final restart, 17/18 just restart and print the version. use the latter, drops the legacy_tail knob.
only pg-17-major-upgrade accepted a psp FROM_VERSION and only the psp group trimmed the minor from the psp repo name. compute pg_version_to_install, upgrade_to_pg_version, from_repo_version and to_repo_version the same way everywhere, the psp specific tasks stay gated on the FROM_VERSION prefix at runtime. drops the psp_from knob and the flavor branches around the repo commands.
use the pg-18 layout everywhere: fix broken debs first, remove the old major's extension packages before its core packages, apt-get -f afterwards, ignore_errors throughout. the pg-14 variant still carried a task keyed on PG_VERSION == ppg-13.5, an env var nothing sets.
…ead of a knob ppg 18 ships no percona-pg-telemetry package (verified against the 18.1/18.4/18.6 apt and yum repos), which is why pg-18 skipped verify_telemetry_upgrade. express that as major < 18, drops the telemetry_upgrade_verify knob. rendered output unchanged for every major.
Naeem-Akhter
approved these changes
Sep 24, 2026
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