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4f7ecca84d
Move VM corruption detection and repair into heap page pruning. This allows VM repair during on-access pruning, not only during vacuum. Also, expand corruption detection to cover pages marked all-visible that contain dead tuples and tuples inserted or deleted by in-progress transactions, rather than only all-visible pages with LP_DEAD items. Pinning the correct VM page before on-access pruning is cheap when compared to the cost of actually pruning. The vmbuffer is saved in the scan descriptor, so a query should only need to pin each VM page once, and a single VM page covers a large number of heap pages. Author: Melanie Plageman <melanieplageman@gmail.com> Reviewed-by: Andres Freund <andres@anarazel.de> Reviewed-by: Chao Li <li.evan.chao@gmail.com> Reviewed-by: Kirill Reshke <reshkekirill@gmail.com> Discussion: https://postgr.es/m/bqc4kh5midfn44gnjiqez3bjqv4zogydguvdn446riw45jcf3y%404ez66il7ebvk |
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| ci | ||
| editors | ||
| ifaddrs | ||
| perlcheck | ||
| pg_bsd_indent | ||
| pginclude | ||
| pgindent | ||
| add_commit_links.pl | ||
| ccsym | ||
| check_bison_recursion.pl | ||
| copyright.pl | ||
| darwin_sysroot | ||
| find_badmacros | ||
| find_meson | ||
| find_static | ||
| find_typedef | ||
| gen_export.pl | ||
| gen_keywordlist.pl | ||
| generate_editorconfig.py | ||
| git-external-diff | ||
| git_changelog | ||
| install_files | ||
| make_ctags | ||
| make_etags | ||
| make_mkid | ||
| mark_pgdllimport.pl | ||
| msvc_gendef.pl | ||
| PerfectHash.pm | ||
| pgflex | ||
| pgtest | ||
| rcgen | ||
| RELEASE_CHANGES | ||
| testwrap | ||
| valgrind.supp | ||
| version_stamp.pl | ||
| win32tzlist.pl | ||