prevent deadlocks on run_maintenance#804

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jw1u1 wants to merge 9 commits intopgpartman:developmentfrom

jw1u1:development

Commits on Aug 19, 2025

Commits on Sep 4, 2025

SHARE UPDATE EXCLUSIVE lock is sufficient, lock only is required
jw1u1
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Commits on Sep 5, 2025

parametrize lock_parent
jw1u1
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