Teach verify_heapam() to validate update chains within a page. Prior to this commit, we only consider each tuple or line pointer on the page in isolation, but now we can do some validation of a line pointer against its successor. For example, a redirect line pointer shouldn't point to another redirect line pointer, and if a tuple is HOT-updated, the result should be a heap-only tuple.
Himanshu Upadhyaya and Robert Haas, reviewed by Aleksander Alekseev, Andres Freund, and Peter Geoghegan. Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/bbc1376b39627c6bddd8a0dc0a7dda24c91a97a0 Modified Files -------------- contrib/amcheck/verify_heapam.c | 291 +++++++++++++++++++++++++++++- src/bin/pg_amcheck/t/004_verify_heapam.pl | 250 +++++++++++++++++++++++-- 2 files changed, 524 insertions(+), 17 deletions(-)
